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42sh

This is the final project of the Unix branch at Le 101, the culmination of the first year of study: a working shell, full of cool features!

This project was coded in C, following the Norm used by the school (see References below). The program is not allowed to crash, nor leak any memory.

It was designed for MacOS but should work fine on Linux: simply make and enjoy!

Made with love and care by Thibault Le Cozanet, Vitor Branco & Vincent Schlumberger

Mandatory part

  • Execution of commands with arguments and path management
  • Line acquisition (prompt display, reading of a command line, proper space and tabulations management)
  • Builtins with their POSIX options: cd, echo, exit, env, setenv, unsetenv
  • Error and commands' return value management
  • Redirections: ">", ">>", "<", "|"
  • Logical operators: "&&", "||"
  • Separator: ";"

Bonuses

  • Dynamic autocompletion with Tab
  • Hash table for binaries, hash command
  • Command history, history and ! builtins
  • Local variables, unset and export builtins
  • Inhibitors: double quote ("), simple quote ('), backslash (\)
  • Advanced redirections: file output aggregation and heredoc (<<)
  • Line edition
    • Cursor movement
      • Right/Left Move letter by letter
      • Alt + Right/Left Move word by word
      • Alt + Up/Down Move up/down from one line to another in the command while remaining in the same column
      • Home/End Get to the beginning/end of the command
    • Cut/copy/paste
      • Alt + A Cut the whole command
      • Alt + S/D Cut everything before/after the cursor
      • Alt + Z Copy the whole command
      • Alt + X/C Copy everything before/after the cursor
      • Alt + V Paste
  • Ctrl + L to clear the screen

References

This a list of ressources we found useful in making this project.

About

A basic (yet super cool) shell

Resources

Readme
Activity

Stars

0 stars

Watchers

0 watching

Forks

0 forks
Report repository

Releases

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Contributors

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, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
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(function() {
function addCopyButtons() {
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btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
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addCopyButtons();
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var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
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}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
GitHub - vischlum/42sh: A basic (yet super cool) shell · GitHub
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42sh
This is the final project of the Unix branch at Le 101, the culmination of the first year of study: a working shell, full of cool features!
This project was coded in C, following the Norm used by the school (see References below). The program is not allowed to crash, nor leak any memory.
It was designed for MacOS but should work fine on Linux: simply make and enjoy!
Made with love and care by Thibault Le Cozanet, Vitor Branco & Vincent Schlumberger
Mandatory part
  • Execution of commands with arguments and path management
  • Line acquisition (prompt display, reading of a command line, proper space and tabulations management)
  • Builtins with their POSIX options: cd, echo, exit, env, setenv, unsetenv
  • Error and commands' return value management
  • Redirections: ">", ">>", "<", "|"
  • Logical operators: "&&", "||"
  • Separator: ";"
Bonuses
  • Dynamic autocompletion with Tab
  • Hash table for binaries, hash command
  • Command history, history and ! builtins
  • Local variables, unset and export builtins
  • Inhibitors: double quote ("), simple quote ('), backslash (\)
  • Advanced redirections: file output aggregation and heredoc (<<)
  • Line edition

    • Cursor movement

      • Right/Left Move letter by letter
      • Alt + Right/Left Move word by word
      • Alt + Up/Down Move up/down from one line to another in the command while remaining in the same column
      • Home/End Get to the beginning/end of the command
    • Cut/copy/paste

      • Alt + A Cut the whole command
      • Alt + S/D Cut everything before/after the cursor
      • Alt + Z Copy the whole command
      • Alt + X/C Copy everything before/after the cursor
      • Alt + V Paste
  • Ctrl + L to clear the screen
References
This a list of ressources we found useful in making this project.
About
A basic (yet super cool) shell
Resources
Readme
Activity
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
.markdown-body pre { background: #161b22 !important; }
.markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }
.markdown-body table th, .markdown-body table td { border-color: #30363d !important; }
.markdown-body img { background: #0d1117; }
.markdown-body blockquote { border-left-color: #8b949e; }
.markdown-body hr { border-color: #30363d; }
';
document.head.appendChild(style);
})();
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - vischlum/42sh: A basic (yet super cool) shell · GitHub
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Makefile
README.MD
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auteur
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norme.en.pdf
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Repository files navigation
42sh
This is the final project of the Unix branch at Le 101, the culmination of the first year of study: a working shell, full of cool features!
This project was coded in C, following the Norm used by the school (see References below). The program is not allowed to crash, nor leak any memory.
It was designed for MacOS but should work fine on Linux: simply make and enjoy!
Made with love and care by Thibault Le Cozanet, Vitor Branco & Vincent Schlumberger
Mandatory part
  • Execution of commands with arguments and path management
  • Line acquisition (prompt display, reading of a command line, proper space and tabulations management)
  • Builtins with their POSIX options: cd, echo, exit, env, setenv, unsetenv
  • Error and commands' return value management
  • Redirections: ">", ">>", "<", "|"
  • Logical operators: "&&", "||"
  • Separator: ";"
Bonuses
  • Dynamic autocompletion with Tab
  • Hash table for binaries, hash command
  • Command history, history and ! builtins
  • Local variables, unset and export builtins
  • Inhibitors: double quote ("), simple quote ('), backslash (\)
  • Advanced redirections: file output aggregation and heredoc (<<)
  • Line edition

    • Cursor movement

      • Right/Left Move letter by letter
      • Alt + Right/Left Move word by word
      • Alt + Up/Down Move up/down from one line to another in the command while remaining in the same column
      • Home/End Get to the beginning/end of the command
    • Cut/copy/paste

      • Alt + A Cut the whole command
      • Alt + S/D Cut everything before/after the cursor
      • Alt + Z Copy the whole command
      • Alt + X/C Copy everything before/after the cursor
      • Alt + V Paste
  • Ctrl + L to clear the screen
References
This a list of ressources we found useful in making this project.
About
A basic (yet super cool) shell
Resources
Readme
Activity
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
var q = url.searchParams.get('q') || url.searchParams.get('p');
if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
}
}
if (terms.length === 0) return;
var style = document.createElement('style');
style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
terms.forEach(function(term) {
var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi');
if (regex.test(text)) {
found = true;
var frag = document.createDocumentFragment();
var parts = text.split(regex);
parts.forEach(function(part, i) {
if (i % 2 === 0) {
frag.appendChild(document.createTextNode(part));
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var span = document.createElement('span');
span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
}
});
node.parentNode.replaceChild(frag, node);
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});
} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - vischlum/42sh: A basic (yet super cool) shell · GitHub
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42sh.en.pdf
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Makefile
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README.MD
auteur
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norme.en.pdf
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Repository files navigation
42sh
This is the final project of the Unix branch at Le 101, the culmination of the first year of study: a working shell, full of cool features!
This project was coded in C, following the Norm used by the school (see References below). The program is not allowed to crash, nor leak any memory.
It was designed for MacOS but should work fine on Linux: simply make and enjoy!
Made with love and care by Thibault Le Cozanet, Vitor Branco & Vincent Schlumberger
Mandatory part
  • Execution of commands with arguments and path management
  • Line acquisition (prompt display, reading of a command line, proper space and tabulations management)
  • Builtins with their POSIX options: cd, echo, exit, env, setenv, unsetenv
  • Error and commands' return value management
  • Redirections: ">", ">>", "<", "|"
  • Logical operators: "&&", "||"
  • Separator: ";"
Bonuses
  • Dynamic autocompletion with Tab
  • Hash table for binaries, hash command
  • Command history, history and ! builtins
  • Local variables, unset and export builtins
  • Inhibitors: double quote ("), simple quote ('), backslash (\)
  • Advanced redirections: file output aggregation and heredoc (<<)
  • Line edition

    • Cursor movement

      • Right/Left Move letter by letter
      • Alt + Right/Left Move word by word
      • Alt + Up/Down Move up/down from one line to another in the command while remaining in the same column
      • Home/End Get to the beginning/end of the command
    • Cut/copy/paste

      • Alt + A Cut the whole command
      • Alt + S/D Cut everything before/after the cursor
      • Alt + Z Copy the whole command
      • Alt + X/C Copy everything before/after the cursor
      • Alt + V Paste
  • Ctrl + L to clear the screen
References
This a list of ressources we found useful in making this project.
About
A basic (yet super cool) shell
Resources
Readme
Activity
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
GitHub - vischlum/42sh: A basic (yet super cool) shell · GitHub
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Makefile
README.MD
README.MD
auteur
auteur
norme.en.pdf
norme.en.pdf
Repository files navigation
42sh
This is the final project of the Unix branch at Le 101, the culmination of the first year of study: a working shell, full of cool features!
This project was coded in C, following the Norm used by the school (see References below). The program is not allowed to crash, nor leak any memory.
It was designed for MacOS but should work fine on Linux: simply make and enjoy!
Made with love and care by Thibault Le Cozanet, Vitor Branco & Vincent Schlumberger
Mandatory part
  • Execution of commands with arguments and path management
  • Line acquisition (prompt display, reading of a command line, proper space and tabulations management)
  • Builtins with their POSIX options: cd, echo, exit, env, setenv, unsetenv
  • Error and commands' return value management
  • Redirections: ">", ">>", "<", "|"
  • Logical operators: "&&", "||"
  • Separator: ";"
Bonuses
  • Dynamic autocompletion with Tab
  • Hash table for binaries, hash command
  • Command history, history and ! builtins
  • Local variables, unset and export builtins
  • Inhibitors: double quote ("), simple quote ('), backslash (\)
  • Advanced redirections: file output aggregation and heredoc (<<)
  • Line edition

    • Cursor movement

      • Right/Left Move letter by letter
      • Alt + Right/Left Move word by word
      • Alt + Up/Down Move up/down from one line to another in the command while remaining in the same column
      • Home/End Get to the beginning/end of the command
    • Cut/copy/paste

      • Alt + A Cut the whole command
      • Alt + S/D Cut everything before/after the cursor
      • Alt + Z Copy the whole command
      • Alt + X/C Copy everything before/after the cursor
      • Alt + V Paste
  • Ctrl + L to clear the screen
References
This a list of ressources we found useful in making this project.
About
A basic (yet super cool) shell
Resources
Readme
Activity
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - vischlum/42sh: A basic (yet super cool) shell · GitHub
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Repository files navigation
42sh
This is the final project of the Unix branch at Le 101, the culmination of the first year of study: a working shell, full of cool features!
This project was coded in C, following the Norm used by the school (see References below). The program is not allowed to crash, nor leak any memory.
It was designed for MacOS but should work fine on Linux: simply make and enjoy!
Made with love and care by Thibault Le Cozanet, Vitor Branco & Vincent Schlumberger
Mandatory part
  • Execution of commands with arguments and path management
  • Line acquisition (prompt display, reading of a command line, proper space and tabulations management)
  • Builtins with their POSIX options: cd, echo, exit, env, setenv, unsetenv
  • Error and commands' return value management
  • Redirections: ">", ">>", "<", "|"
  • Logical operators: "&&", "||"
  • Separator: ";"
Bonuses
  • Dynamic autocompletion with Tab
  • Hash table for binaries, hash command
  • Command history, history and ! builtins
  • Local variables, unset and export builtins
  • Inhibitors: double quote ("), simple quote ('), backslash (\)
  • Advanced redirections: file output aggregation and heredoc (<<)
  • Line edition

    • Cursor movement

      • Right/Left Move letter by letter
      • Alt + Right/Left Move word by word
      • Alt + Up/Down Move up/down from one line to another in the command while remaining in the same column
      • Home/End Get to the beginning/end of the command
    • Cut/copy/paste

      • Alt + A Cut the whole command
      • Alt + S/D Cut everything before/after the cursor
      • Alt + Z Copy the whole command
      • Alt + X/C Copy everything before/after the cursor
      • Alt + V Paste
  • Ctrl + L to clear the screen
References
This a list of ressources we found useful in making this project.
About
A basic (yet super cool) shell
Resources
Readme
Activity
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - vischlum/42sh: A basic (yet super cool) shell · GitHub
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libft
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srcs
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42sh.en.pdf
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README.MD
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Repository files navigation
42sh
This is the final project of the Unix branch at Le 101, the culmination of the first year of study: a working shell, full of cool features!
This project was coded in C, following the Norm used by the school (see References below). The program is not allowed to crash, nor leak any memory.
It was designed for MacOS but should work fine on Linux: simply make and enjoy!
Made with love and care by Thibault Le Cozanet, Vitor Branco & Vincent Schlumberger
Mandatory part
  • Execution of commands with arguments and path management
  • Line acquisition (prompt display, reading of a command line, proper space and tabulations management)
  • Builtins with their POSIX options: cd, echo, exit, env, setenv, unsetenv
  • Error and commands' return value management
  • Redirections: ">", ">>", "<", "|"
  • Logical operators: "&&", "||"
  • Separator: ";"
Bonuses
  • Dynamic autocompletion with Tab
  • Hash table for binaries, hash command
  • Command history, history and ! builtins
  • Local variables, unset and export builtins
  • Inhibitors: double quote ("), simple quote ('), backslash (\)
  • Advanced redirections: file output aggregation and heredoc (<<)
  • Line edition

    • Cursor movement

      • Right/Left Move letter by letter
      • Alt + Right/Left Move word by word
      • Alt + Up/Down Move up/down from one line to another in the command while remaining in the same column
      • Home/End Get to the beginning/end of the command
    • Cut/copy/paste

      • Alt + A Cut the whole command
      • Alt + S/D Cut everything before/after the cursor
      • Alt + Z Copy the whole command
      • Alt + X/C Copy everything before/after the cursor
      • Alt + V Paste
  • Ctrl + L to clear the screen
References
This a list of ressources we found useful in making this project.
About
A basic (yet super cool) shell
Resources
Readme
Activity
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();
GitHub - vischlum/42sh: A basic (yet super cool) shell · GitHub
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42sh
This is the final project of the Unix branch at Le 101, the culmination of the first year of study: a working shell, full of cool features!
This project was coded in C, following the Norm used by the school (see References below). The program is not allowed to crash, nor leak any memory.
It was designed for MacOS but should work fine on Linux: simply make and enjoy!
Made with love and care by Thibault Le Cozanet, Vitor Branco & Vincent Schlumberger
Mandatory part
  • Execution of commands with arguments and path management
  • Line acquisition (prompt display, reading of a command line, proper space and tabulations management)
  • Builtins with their POSIX options: cd, echo, exit, env, setenv, unsetenv
  • Error and commands' return value management
  • Redirections: ">", ">>", "<", "|"
  • Logical operators: "&&", "||"
  • Separator: ";"
Bonuses
  • Dynamic autocompletion with Tab
  • Hash table for binaries, hash command
  • Command history, history and ! builtins
  • Local variables, unset and export builtins
  • Inhibitors: double quote ("), simple quote ('), backslash (\)
  • Advanced redirections: file output aggregation and heredoc (<<)
  • Line edition

    • Cursor movement

      • Right/Left Move letter by letter
      • Alt + Right/Left Move word by word
      • Alt + Up/Down Move up/down from one line to another in the command while remaining in the same column
      • Home/End Get to the beginning/end of the command
    • Cut/copy/paste

      • Alt + A Cut the whole command
      • Alt + S/D Cut everything before/after the cursor
      • Alt + Z Copy the whole command
      • Alt + X/C Copy everything before/after the cursor
      • Alt + V Paste
  • Ctrl + L to clear the screen
References
This a list of ressources we found useful in making this project.
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