Cool desktops don’t change 😎 - Tyler Cipriani
The average software running my laptop is 24 years old. So, 24 more years of this desktop (right!? 😅). Preserve your flow state ¶ My desktop has features that are missing from other people’s computers. These features whisk me into a flow state and keep me there; they preserve my limited attention, willpower, and (frankly) mental capacity. Vim instead of a new notetaking app ¶ Sage advice from @ne
Do Not Use '>' in Your Command Prompt (and How to Stay Safe in Shell) - Tanel Poder Consulting
Do Not Use '>' in Your Command Prompt (and How to Stay Safe in Shell) Over the years of troubleshooting performance problems in the Unix/Linux world, I have seen multiple cases where a regularly used command line tool in a customer server just stops working for some reason. The tool just returns immediately, doing absolutely nothing. No output printed, no coredumps and the exit code is zero (succe
Process substitution - Wikipedia
In computing, process substitution is a form of inter-process communication that allows the input or output of a command to appear as a file. The command is substituted in-line, where a file name would normally occur, by the command shell. This allows programs that normally only accept files to directly read from or write to another program. Process substitution was available as a compile-time opt
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ã¯ã˜ã‚ã« bashã«ã¯æ¬¡ã®2ã¤ã®ç†ç”±ã«ã‚ˆã£ã¦ã€çµ„ã¿è¾¼ã¿ã‚³ãƒžãƒ³ãƒ‰(builtin command)ã¨ã„ã†ã‚‚ã®ãŒå˜åœ¨ã—ã¾ã™ã€‚ スクリプトã®é«˜é€ŸåŒ–ã®ãŸã‚。組ã¿è¾¼ã¿ã‚³ãƒžãƒ³ãƒ‰ã§ã‚ã‚Œã°é€šå¸¸ã®ã‚³ãƒžãƒ³ãƒ‰ã‚’実行ã™ã‚‹å ´åˆã«æ¯”ã¹ã¦ãƒ—ãƒã‚»ã‚¹ã®ç”Ÿæˆã‚³ã‚¹ãƒˆ(fork()/exec())ãŒå‰Šæ¸›ã§ãã‚‹ bash自身ã®çŠ¶æ…‹ã‚’変更ã•ã›ã‚‹ãŸã‚。例ãˆã°cdコマンドを/bin/cdã¨ã—ã¦ç”¨æ„ã—ã¦bashã‹ã‚‰å½“該コマンドを実行ã—ã¦ã‚‚ã€å½“該コマンドã®pwdãŒå¤‰æ›´ã•ã‚Œã‚‹ã ã‘ã§ã€bashã®ãã‚Œã¯å¤‰æ›´ã•ã‚Œãªã„ãŸã‚ã€æ„味ãŒãªã„ 今回ã¯å‰è€…ã«ç„¦ç‚¹ã‚’åˆã‚ã›ã¦ã€ãã®åŠ¹æžœã¨ã€çµ„ã¿è¾¼ã¿ã‚³ãƒžãƒ³ãƒ‰ã®è‡ªä½œæ–¹æ³•ã«ã¤ã„ã¦è¿°ã¹ã¾ã™ã€‚ 予備知è˜: 組込ã¿ã‚³ãƒžãƒ³ãƒ‰ã«ã‚ˆã‚‹ã‚¹ã‚¯ãƒªãƒ—ト高速化ã®åŠ¹æžœ 組込ã¿ã‚³ãƒžãƒ³ãƒ‰ãã®ã‚‚ã®ã®å˜åœ¨ã€åŠã³ãã®å˜åœ¨æ„義ã«ã¤ã„ã¦æ—¢ã«ã”å˜çŸ¥ã®ã‹ãŸã¯ã€ã“ã®ç¯€ã‚’飛ã°ã—ã¦ã‚‚らã£ã¦æ§‹ã„ã¾ã›ã‚“。 例ãˆã°çš†ã•ã‚“ãŒbashスクリプトã‹ã‚‰echoコマンドを実行ã—ãŸå ´åˆ
Ten Things I Wish I’d Known About bash
Intro Recently I wanted to deepen my understanding of bash by researching as much of it as possible. Because I felt bash is an often-used (and under-understood) technology, I ended up writing a book on it. A preview is available here. You don’t have to look hard on the internet to find plenty of useful one-liners in bash, or scripts. And there are guides to bash that seem somewhat intimidating thr
Bash Strict Mode
Use Bash Strict Mode (Unless You Love Debugging) Let's start with the punchline. Your bash scripts will be more robust, reliable and maintainable if you start them like this: I call this the unofficial bash strict mode. This causes bash to behave in a way that makes many classes of subtle bugs impossible. You'll spend much less time debugging, and also avoid having unexpected complications in prod
安全ãªä¸€æ™‚ファイルã®ä½œæˆã¨å‰Šé™¤ã®æ–¹æ³• - æ‹¡å¼µ POSIX シェルスクリプト Advent Calendar 2013 - ダメ出㗠Blog
æ‹¡å¼µ POSIX シェルスクリプト Advent Calendar 2013ã€6日目ã®è¨˜äº‹ã§ã™ã€‚ 本日ã®ãŠé¡Œã¯ã€Œä¸€æ™‚ファイルã®ä½œæˆã¨å‰Šé™¤ã€ã§ã™ãŒã€ よãã‚るシェルスクリプトã®ãƒ€ãƒ¡å‡ºã—ãƒã‚¿ã«ãªã£ã¦ã—ã¾ã„ã¾ã—ãŸã€‚ 安全ãªä¸€æ™‚ファイルã®ä½œæˆæ–¹æ³• ãŸã¨ãˆã°ã€ã“ã‚“ãªæ„Ÿã˜ã®ã‚ã‚ŠãŒã¡(?)ãªã‚¹ã‚¯ãƒªãƒ—トãŒã‚ã£ãŸã¨ã—ã¾ã™ã€‚ æ„味ã®ãªã„処ç†å†…容ã§ã™ãŒã€é›°å›²æ°—ã ã‘察ã—ã¦ãã ã•ã„。 #!/bin/bash tmpfile=/tmp/words.tmp rm -f $tmpfile echo 'ã—ã«ãŸã„' >>$tmpfile echo 'ã¨ã‚Šã‚ãˆãšãよã†' >>$tmpfile sleep 3 echo -n '今ã©ã‚“ãªæ°—æŒã¡? ' read feeling echo $feeling >>$tmpfile cat $tmpfile rm $tmpfile 全然駄目ã§ã™ã。 ã‚‚ã—「何ã«ã‚‚å•é¡Œãªã„ã˜ã‚ƒãªã„ã‹!ã€ã¨ã„
The single most useful thing in bash (Example)
Create ~/.inputrc and fill it with this: "\e[A": history-search-backward "\e[B": history-search-forward This allows you to search through your history using the up and down arrows … i.e. type "cd" and press the up arrow and you'll search through everything in your history that starts with "cd". It's a little bit like ctrl-r (mentioned in many of the comments below), but anchored to the start of th
Your Bash Prompt Needs This – The Mindful Programmer
The Mindful Programmer Articles on computing, mathematics, art, and anything in between Have you ever had this happen to you? You start a program and then interrupt it with Ctrl-C, and Bash prints its prompt after the ^C you have typed: prompt$ a very long command ^Cprompt$ â–ˆ Then you hit the Up key to retrieve very long command from the history and try to edit it, only to discover that the text y
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How bash handles the jobs when logout?
GitHub - koalaman/shellcheck: ShellCheck, a static analysis tool for shell scripts
検索ã§ã¯ã‚ã‚“ã¾ã‚Šå‡ºãªã„bashã®ä¾¿åˆ©æŠ€ - Qiita
https://qiita.com/geta6/items/199faca823e84026c10a
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