explainshell.com - match command-line arguments to their help textwrite down a command-line to see the help text that matches each argument
What does "--" (double dash / double hyphen) mean?
I have seen -- used in the compgen command. For example: compgen -W "foo bar baz" -- b What is the meaning of the -- in there?
bash ã®åˆæœŸåŒ–ファイル .profile, .bashrc, .bash_profile ã®ä½¿ã„分ã‘ã¨ç®¡ç†æ–¹é‡ - A Memorandum
ã¯ã˜ã‚ã« bash ã®åˆæœŸåŒ–ファイル ãƒã‚°ã‚¤ãƒ³ã‚·ã‚§ãƒ«ã¨ã¯ インタラクティブ(対話的)シェルã¨ã¯ ãƒã‚°ã‚¤ãƒ³ã‚·ã‚§ãƒ«ã¨ã‚¤ãƒ³ã‚¿ãƒ©ã‚¯ãƒ†ã‚£ãƒ–シェルã®åˆ†é¡ž å„種環境ã«ãŠã‘ã‚‹åˆæœŸåŒ–ファイル CentOSã®åˆæœŸåŒ–ファイル Ubuntuã®åˆæœŸåŒ–ファイル macOS(Catalina以å‰)ã®åˆæœŸåŒ–ファイル macOS(Catalina)ã®åˆæœŸåŒ–ファイル å„環境ã«ãŠã‘るデフォルトã®åˆæœŸåŒ–ファイル å˜ä¸€ãƒ•ã‚¡ã‚¤ãƒ«ç®¡ç†(~/.bashrc) 標準的管ç†(環境変数ã¯~/.bash_profile) åŽ³æ ¼ç®¡ç†(~/.profile 利用) macOS Catalina ã®å ´åˆ ã¾ã¨ã‚ ã¯ã˜ã‚㫠本記事ã§ã¯ bash ã®åˆæœŸåŒ–ファイルã¨ã€ãã‚Œã«ã¾ã¤ã‚ã‚‹é‹ç”¨æ–¹æ³•ã«ã¤ã„ã¦èª¬æ˜Žã—ã¾ã™ã€‚ シェル(bash)ã®åˆæœŸåŒ–ファイルã«ã¯ .profile .bashrc, .bash_profile ãªã©ãŒã‚ã‚Šã¾ã™ãŒã€ã©ã“ã«ä½•ã‚’定義ã™ã¹ãã‹ã«
Bash installer by itchyny · Pull Request #256 · Homebrew/install
Hi, I looked into the installer and translated into bash one line by one. Needs some more works (not sure how to compare version string.. maybe I'll implement this with arrays parameter substitution works). I love Homebrew, thank you all. Why? resolves Port installer to Bash #217 Future versions of macOS won’t include scripting language runtimes by default, and might require you to install additio
.inputrcã§ã‚¿ãƒ¼ãƒŸãƒŠãƒ«ã®è£œå®Œã‚’便利ã«
今ã¾ã§bashã®Tab補完ã«ã¯ã©ã†ã‚„ã£ã¦è‰²ä»˜ã‘ã™ã‚Œã°è‰¯ã„ã®ã ã‚ã†ã¨æ€ã£ã¦ã„ã¾ã—ãŸã€‚ lsã—ãŸæ™‚ã«è‰²ä»˜ã‘ã™ã‚‹ã®ã¯--color=autoã®aliasã‚’ ~/.bashrc ã«æ›¸ã„ã¦ã„ã‚Œã°OKã§ã™ãŒã€cd [Tab] ã§ã‚«ãƒ¬ãƒ³ãƒˆãƒ‡ã‚£ãƒ¬ã‚¯ãƒˆãƒªã®è£œå®Œã‚’ã—よã†ã¨ã—ãŸæ™‚ã«ã¯è‰²ä»˜ã‘ã•ã‚Œã¾ã›ã‚“。 ã“ã‚Œã¯ã©ã†ã‚„ら ~/.inputrc 㧠set colored-stats on ã¨ã™ã‚‹äº‹ã§è¨å®šã§ãã‚‹ã¿ãŸã„。 .inputrcã¯readlineã®è¨å®šãƒ•ã‚¡ã‚¤ãƒ«ãªã®ã§ã€ä»–ã«ã‚‚色々ã¨è¨å®šã—ã¦ãŠãã¨å¹¸ã›ã«ãªã‚Œãã†ã§ã™ã€‚ è¨å®šå¯èƒ½ãªé …目を見ã¦ã„ã‚‹ã¨ã€ä»¥ä¸‹ã®ã‚ˆã†ã«è¨å®šã™ã‚‹ã¨ä¾¿åˆ©ãã†ã€‚ # 補完時ã«å¤§æ–‡å—å°æ–‡å—を無視 set completion-ignore-case on # ファイルタイプをカラフル㫠set colored-stats on # 補完ã®æŽ¥é 辞をカラフル㫠set colored-completio
.inputrcã®ä¾¿åˆ©è¨å®š - About Digital
readlineã®è¨å®šãƒ•ã‚¡ã‚¤ãƒ«ã§ã‚ã‚‹$HOME/.inputrcã‚’ã†ã¾ãè¨å®šã™ã‚‹ã¨ã‚³ãƒžãƒ³ãƒ‰ãƒ©ã‚¤ãƒ³ã§ã®ç”Ÿæ´»ãŒè±Šã‹ã«ãªã‚‹ã€‚ ã‘ã©ä½•æ•…ã‹ã‚ã¾ã‚Šæƒ…å ±ãŒå¤šããªãã€ãƒã‚¤ãƒ³ãƒ‰ã®è¨å®šã‚’変更ã™ã‚‹ã¨ãå°‘ã—å›°ã£ãŸã€‚ å°‘ã—ã®è¨å®šã ã‘ã©å°‘ã—便利ã«ãªã£ãŸã®ã§å…¬é–‹ã—ã¦ã¿ã‚‹ã€‚ ãƒã‚¤ãƒ³ãƒˆã¯$if Bashãªã©ã€åˆ†å²ãŒå¯èƒ½ãªã¨ã“ã‚。他ã«ã‚‚$if Mysqlã¨ã‹ã§ãã‚‹ã¿ãŸã„。 ãŠã™ã™ã‚ zshã ã¨ã‚ーãƒã‚¤ãƒ³ãƒ‰ã‚‚ç°¡å˜ã«è¨å®šã§ãã‚‹ã¿ãŸã„ã ã‘ã©ã€bashã ã¨ãã†ã‚‚ã„ã‹ãªã„。
Readline - ArchWiki
Readline 㯠GNU プãƒã‚¸ã‚§ã‚¯ãƒˆã«ã‚ˆã£ã¦é–‹ç™ºã•ã‚Œã¦ã„るライブラリã§ã€ã‚³ãƒžãƒ³ãƒ‰ãƒ©ã‚¤ãƒ³ã§ç·¨é›†ã—ãŸã‚Šå¯¾è©±ã™ã‚‹ãŸã‚ã« Bash ãªã©ã® CLI インターフェイスプãƒã‚°ãƒ©ãƒ ã§ä½¿ã‚ã‚Œã¦ã„ã¾ã™ã€‚詳ã—ã㯠readline(3) ã‚’å‚ç…§ã—ã¦ãã ã•ã„。ã“ã“ã§ã¯ç°¡å˜ãªè¨å®šã ã‘ã«è§¦ã‚Œã¾ã™ã€‚ インストール readline パッケージã¯ã€Bash ã®ä¾å˜é–¢ä¿‚ã¨ã—ã¦ã™ã§ã«ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã•ã‚Œã¦ã„ã‚‹å¯èƒ½æ€§ãŒã‚ã‚Šã¾ã™ã€‚ 編集モード デフォルトã§ã¯ Readline ã¯ã‚³ãƒžãƒ³ãƒ‰ãƒ©ã‚¤ãƒ³ã¨å¯¾è©±ã™ã‚‹ã®ã« Emacs ã®ã‚ˆã†ãªã‚·ãƒ§ãƒ¼ãƒˆã‚«ãƒƒãƒˆã‚’使ã„ã¾ã™ã€‚ãŸã ã—ã€vi スタイルã®ç·¨é›†ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ã‚¤ã‚¹ã‚‚サãƒãƒ¼ãƒˆã¯ã•ã‚Œã¦ã„ã¾ã™ã€‚ vi ã‚ã‚‹ã„㯠vim を使ã£ã¦ã„ã‚‹å ´åˆã€ä»¥ä¸‹ã®è¡Œã‚’ ~/.inputrc ã«è¨˜è¿°ã™ã‚‹ã“ã¨ã§ Readline ベースã®ã‚¢ãƒ—リケーション㧠vi ライクãªã‚ーãƒã‚¤ãƒ³ãƒ‰ã‚’有効ã«ã§ãã¾ã™: ~/.inputr
Shell Expansions (Bash Reference Manual)
3.5 Shell Expansions Expansion is performed on the command line after it has been split into tokens. There are seven kinds of expansion performed: brace expansion tilde expansion parameter and variable expansion command substitution arithmetic expansion word splitting filename expansion The order of expansions is: brace expansion; tilde expansion, parameter and variable expansion, arithmetic expan
Shell Parameter Expansion (Bash Reference Manual)
3.5.3 Shell Parameter Expansion The ‘$’ character introduces parameter expansion, command substitution, or arithmetic expansion. The parameter name or symbol to be expanded may be enclosed in braces, which are optional but serve to protect the variable to be expanded from characters immediately following it which could be interpreted as part of the name. When braces are used, the matching ending b
Tilde Expansion (Bash Reference Manual)
3.5.2 Tilde Expansion If a word begins with an unquoted tilde character (‘~’), all of the characters up to the first unquoted slash (or all characters, if there is no unquoted slash) are considered a tilde-prefix. If none of the characters in the tilde-prefix are quoted, the characters in the tilde-prefix following the tilde are treated as a possible login name. If this login name is the null stri
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bash ã® for 㨠パイプ(xargs) ã®ä¸€ç•ªå¤§ããªé•ã„ - ãれマグã§ï¼
bash ã®ä¼¼ãŸã‚‚ã®ã‚·ãƒªãƒ¼ã‚º åˆå¿ƒè€…ãŒèº“ããã†ãªbash ã§ä¼¼ã¦ç´›ã‚‰ã‚ã—ã„ã‚‚ã®ã®é•ã„ã‚’ã¯ã£ãã‚Šã•ã›ã‚ˆã†ã¨ã•ã›ã‚‹ã‚·ãƒªãƒ¼ã‚ºã€‚ bash ã«æ–¼ã‘ã‚‹ xargs / for ã«ã¯é•ã„ãŒã‚ã‚‹ã®ã‹ï¼Ÿ ã‚ã‚Šã¾ã™ã€‚çµæ§‹å¤§ããªé•ã„ãŒæœ‰ã‚Šã¾ã™ã€‚ ãã‚Œãžã‚Œã®ãƒ«ãƒ¼ãƒ—ã®å›žã—ã‹ãŸã‚’復習ã—ã¦ãŠãã¾ã—ょã†ã€‚ for ループã§ã‚³ãƒžãƒ³ãƒ‰çµæžœã‚’回㙠for e in some_command ; echo $e; done xargs パイプã§ã‚³ãƒžãƒ³ãƒ‰çµæžœã‚’回㙠some_command | xargs -I @ echo @; ã“ã®ï¼’ã¤ã®ã€ã‚³ãƒžãƒ³ãƒ‰ã®å®Ÿè¡Œã«ã¯é•ã„ãŒåœ¨ã‚‹ã®ã§ã—ょã†ã‹ã€‚ã¾ãŸã‚³ãƒžãƒ³ãƒ‰ã®å®Ÿè¡Œã®é€Ÿåº¦ã«ã¯é•ã„ãŒå‡ºã‚‹ã§ã—ょã†ã‹ï¼Ÿ ï¼’ã¤ã®é•ã„ xargsã¯ã‚µãƒ–シェルを起動ã™ã‚‹ã®ã§å¤‰æ•°ã®åå‰ç©ºé–“ãŒé•ã† コマンドã®çµ‚了を待ã¤for 㨠終了を待ãŸãªã„ xargs ã“ã‚“ã‹ã„ã¯ã€ã“ã®å¾Œè€…ã®é•ã„ã«ã¤ã„ã¦ç€ç›®ã—ãŸã„ã¨æ€ã„ã¾ã™ã€‚ 毎秒カウ
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ShellCheck – shell script analysis tool
GPLv3: free as in freedom documented on the ShellCheck Wiki available on GitHub (as is this website) already packaged for your distro or package manager supported as an integrated linter in major editors available in CodeClimate, Codacy and CodeFactor to auto-check your GitHub repo written in Haskell, if you're into that sort of thing.
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開発時ã«ãƒã‚°ã‚’見るãªã‚‰tailよりもlessï¼ï¼ - Qiita
アプリã®é–‹ç™ºã‚’ã—ã¦ã„ã‚‹ã¨ã€ã‚¢ãƒ—リãŒåã出ã™ã®ãƒã‚°ã‚’見るã“ã¨ãŒå¤šã„ã¨æ€ã„ã¾ã™ã€‚ 以å‰ä¼šç¤¾ã®åŒåƒšã«æ•™ãˆã¦ã‚‚らã£ãŸã®ã§ã€è‡ªåˆ†ã§è€ƒãˆã‚’ã¾ã¨ã‚ã‚‹ãŸã‚ã«è¨˜äº‹ã«ã—ã¾ã™ã€‚ 背景 僕ã®å ´åˆRailsã§é–‹ç™ºã™ã‚‹ã“ã¨ãŒå¤šãã€development.logãªã©ã‚’見るã“ã¨ãŒå¤šã„ã§ã™ã€‚ ãƒã‚°ã‚’åž‚ã‚Œæµã—ã¦è¦‹ã‚‹å ´åˆã‚¿ãƒ¼ãƒŸãƒŠãƒ«ã§ tailf コマンドや tail -f を使ã£ã¦ã„ã¦ã€ å¿…è¦ãŒã‚れ㰠Ctrl-c ã§æ¢ã‚ã¦ã‚¿ãƒ¼ãƒŸãƒŠãƒ«ã‚’スクãƒãƒ¼ãƒ«ã—ã¦ãƒã‚°ã‚’見ã¦ã„ã¾ã—ãŸã€‚ ã‚ã¨ã¯ã‚¿ãƒ¼ãƒŸãƒŠãƒ«ã®æ¤œç´¢æ©Ÿèƒ½ã§æ–‡å—列検索ã—ãŸã‚Šã€‚。。ãªã©ãªã© ãã‚“ãªäººã« tail ã§ã¯ãªã less を使ã†ã¨ã¡ã‚‡ã£ã¨ä¾¿åˆ©ã よã¨ã„ã†å†…容ã§ã™ã€‚ lessã®åŸºæœ¬ Unix関連ã®OSã«ã¯å¤šåˆ†ãƒ‡ãƒ•ã‚©ãƒ«ãƒˆã§ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã•ã‚Œã¦ã„ã‚‹ã¨æ€ã„ã¾ã™ã€‚ コマンドã®å¼•æ•°ã«ãƒ•ã‚¡ã‚¤ãƒ«åを指定ã—ã¦èµ·å‹•ã—ã¾ã™ã€‚ æ“作感㯠more ã‚„ vi ã¨ä¼¼ã¦ã„ã¾ã™ã€‚ vi ã¨ã¯é•ã„起動時ã«ãƒ•ã‚¡ã‚¤ãƒ«ã®
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GitHub - bpkg/bpkg: Lightweight bash package manager
Parallelize a Bash FOR Loop
Port installer to Bash · Issue #217 · Homebrew/install
コマンドラインツールを書ããªã‚‰çŸ¥ã£ã¦ãŠããŸã„ Bash 㮠予約済㿠Exit Code - Qiita
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