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Stop using tail -f (mostly)
Stop using tail -f (mostly) 12 Mar 2015 I still see a lot of people using tail -f to monitor files that are changing, mostly log files. If you are one of them, let me show you a better alternative: less +F The less documentation explains well what this +F is all about: Scroll forward, and keep trying to read when the end of file is reached. Normally this command would be used when already at the e
htop - an interactive process viewer
This is htop, a cross-platform interactive process viewer. It is a text-mode application (for console or X terminals) and requires ncurses. Latest release. What's new in htop If you want to support htop, consider donating at Hack Club. This US IRS-approved 501(c)(3) nonprofit organization is hosting htop as our fiscal sponsor since March 2024. Please check out the changelog for details and credits
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æ¦‚è¦ Linuxã®ãƒ‘フォーマンス解æžãƒ„ールã§ã‚ã‚‹perfã®ä½¿ã„ã‹ãŸã®ç´¹ä»‹ 背景 個人的ã«perfよãã§ãã¦ã‚‹ã¨æ€ã†ã®ã§ç´¹ä»‹ã—ãŸã„ã¨ã„ã†ã®ã¨ã€ パフォーマンスカウンタã®èªã¿æ–¹ã£ã¦ã‚ã‚“ã¾ã‚ŠçŸ¥ã‚‰ã‚Œã¦ãªã„ã¿ãŸã„ãªã®ã§ã€ ãã‚Œã®è§£èª¬ã‚’書ããŸã„。 æ§‹æˆ perf ã«ã¤ã„ã¦èª¬æ˜Žã—ãŸã‚ã¨ã€ãƒ‘フォーマンスカウンタã®èªã¿ã‹ãŸã€è¦‹ã‹ãŸã€ã‚’説明ã™ã‚‹ã€‚ perfã¨ã¯ä½•ã‹ Linuxã«ä»˜ã„ã¦ãるプãƒãƒ•ã‚¡ã‚¤ãƒ©ã€‚ man perf ã«ã‚ˆã‚‹ã¨ã€ NAME ---- perf - Performance analysis tools for Linux ã¨ã€æ›¸ã„ã¦ã‚る。åå‰ãŒã²ã©ã„ã®ã§ãªã‚“ã¨ã‹ã—ã¦ã»ã—ã„。 perf ã®ç‰¹å¾´ 個人的ã«ã¯ã€æ‰‹è»½ã«ä½¿ãˆã‚‹ã®ãŒç´ 晴らã—ã„ã¨æ€ã†ã€‚ 2.6.31以é™ã‚«ãƒ¼ãƒãƒ«ã«æ¨™æº–ã§ä»˜ã„ã¦ã‚‹ã€‚(Ubuntuã ã¨linux-tools-common(TODO:ã‚ã¨ã§ç¢ºèª)ã§å…¥ã‚‹ã¯ãš) 特殊ãªè¨å®šãŒå¿…è¦ç„¡ãã€
コマンドラインツールã«ã¤ã„ã¦èªžã‚‹ã¨ãã«åƒ•ã®èªžã‚‹ã“㨠#yapcasia
http://yapcasia.org/2014/talk/show/b49cc53a-027b-11e4-9357-07b16aeab6a4
rupa/z: z - jump around
Z(1) User Commands Z(1) NAME z - jump around SYNOPSIS z [-chlrtx] [regex1 regex2 ... regexn] AVAILABILITY bash, zsh DESCRIPTION Tracks your most used directories, based on 'frecency'. After a short learning phase, z will take you to the most 'frecent' directory that matches ALL of the regexes given on the command line, in order. For example, z foo bar would match /foo/bar but not /bar/foo. OPTIONS
apt-get, aptitude, … pick the right Debian package manager for you
You are here: Home / Documentation / apt-get, aptitude, … pick the right Debian package manager for you This is a frequently asked question: “What package manager shall I use?â€. And my answer is “the one that suits your needsâ€. In my case, I even use different package managers depending on what I’m trying to do. APT vs dpkg, which one is the package manager? In the Debian world, we’re usually thin
seq 㧠0 padding ã—ãŸæ•°å—列を作る
Linux ã® seq コマンドã¯ã€ã‚·ãƒ³ãƒ—ルãªæ•°åˆ—を作ã£ã¦ãれる。例ãˆã°ã€1 ã‹ã‚‰ 10 ã¾ã§ã®æ•°å—を表示ã•ã›ã‚‹ã«ã¯æ¬¡ã®ã‚„ã†ã«ã™ã‚‹ã€‚ $ seq 10 1 2 3 4 5 6 7 8 9 10 途ä¸ã®æ•°å—ã‹ã‚‰å§‹ã‚ãŸã„å ´åˆã¯ã€ãã®æ•°å—を第一引数ã«ã¨ã‚‹ã€‚5 ã‹ã‚‰ 10 ã¾ã§ã®æ•°å—åˆ—ã‚’å¾—ã‚‹å ´åˆã®ä¾‹ã¯æ¬¡ã®é€šã‚Šã€‚ $ seq 5 10 5 6 7 8 9 10 ã“ã®ã‚³ãƒžãƒ³ãƒ‰ã‚’何ã«ä½¿ã†ã®ã‹ã¨ã„ã†ã¨ã€shell script ã®ä¸ã§é€£ç•ªãƒ•ã‚¡ã‚¤ãƒ«ã‚’作æˆã™ã‚‹ã®ã«æ´»ç”¨ã™ã‚‹ã€‚例ãˆã°ã€ã“ã‚“ãªæ„Ÿã˜ã€‚ #!/bin/bash for i in `seq 10`; do echo $i.jpg done echo コマンドã®ä»£ã‚ã‚Šã«ã€wget を使ãˆã°ã€é€£ç•ªãƒ•ã‚¡ã‚¤ãƒ«ã®ãƒ€ã‚¦ãƒ³ãƒãƒ¼ãƒ‰ã€‚touch コマンドを使ãˆã°ã€é€£ç•ªãƒ•ã‚¡ã‚¤ãƒ«ã®ä½œæˆã€‚etc... ã•ã¦ã€10 個以上ã®é€£ç•ªãƒ•ã‚¡ã‚¤ãƒ«ã‚’ä½œã‚‹å ´åˆã€0 ãƒ‘ãƒ‡ã‚£ãƒ³ã‚°ã‚’åŠ ãˆã¦ãŠãã¨ä¾¿åˆ©
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今回ã¯ã€æœ€è¿‘ã„ã‚ã„ã‚ã¨ã•ã‚る機会ã®å¤šã‹ã£ãŸLinuxã®è©±ã§ã™ã€‚ 大ãããªã£ãŸãƒã‚°ãƒ•ã‚¡ã‚¤ãƒ«ãªã©ã‚’ã€ä¸€æ—¦ã‚¯ãƒªã‚¢ã—ã¦ã—ã¾ã„ãŸã„時ã£ã¦ã‚ã‚Šã¾ã™ã‚ˆã。rmã—ã¦touchã¨ã‹ã§ã‚‚ã§ããªãã¯ãªã„ã§ã™ãŒã€ãƒ‘ーミッションをè¨å®šã—ç›´ã—ãŸã‚Šã—ãªã„ã¨ã„ã‘ãªã‹ã£ãŸã‚Šã™ã‚‹ã®ã§ã€ã‚ã¾ã‚Šã‚¹ãƒžãƒ¼ãƒˆãªæ–¹æ³•ã§ã¯ãªã•ãã†ã§ã™ã€‚ã“ã†ã„ã†æ™‚ã€æ™®é€šã¯ã©ã†ã™ã‚‹ã®ã‹ãªã¨æ€ã£ã¦èª¿ã¹ã¦ã„ãŸã‚‰ã€ã“ã‚“ãªãƒšãƒ¼ã‚¸ãŒè¦‹ã¤ã‹ã‚Šã¾ã—ãŸã€‚ ファイルを空ã«ã™ã‚‹ – æ®ç™ºæ€§ã®ãƒ¡ãƒ¢ http://d.hatena.ne.jp/iww/20071007/cat $ :> foo.log ãŠãŠã€ã“ã‚“ãªã‚„ã‚Šæ–¹ãŒã‚ã‚‹ã‚“ã§ã™ã。知りã¾ã›ã‚“ã§ã—ãŸã€‚ã—ã‹ã—ã€ã“ã®ã‚¹ãƒžã‚¤ãƒªãƒ¼ã¿ãŸã„ãª:>ã®æ„味ãŒåˆ†ã‹ã‚Šã¾ã›ã‚“。ã¨ã‚Šã‚ãˆãšã€è©¦ã—ã«ç›®ã¨å£ã®é–“ã«(笑)スペースを入れã¦ã¿ã¾ã™ã€‚ $ : > foo.log ã“れも先ã»ã©ã¨åŒã˜çµæžœã«ãªã‚Šã¾ã—ãŸã€‚ã¨ã„ã†ã“ã¨ã¯:ã¨>ã¯åˆ¥ã€…ã®ã‚ˆã†ã§ã™ã€‚>ã¯ãƒªãƒ€ã‚¤ãƒ¬ã‚¯
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シェルスクリプトã¨awkã«ã‚ˆã‚‹ãƒ‡ãƒ¼ã‚¿è§£æž 2006/01/10 ç‘波大å¦è¾²æž—å·¥å¦ç³» 西田顕郎 ã¯ã˜ã‚㫠テã‚スト形å¼ã®æ•°å€¤ãƒ‡ãƒ¼ã‚¿ã®å‡¦ç†ãƒ»è§£æžã«ã¯ã€awk+シェルスクリプトãŒæœ€å¼·ã§ã‚る。誇張ã§ã¯ãªã„。ã“ã‚Œã¾ã§ã‚¨ã‚¯ã‚»ãƒ«ã‚„C言語ã€FORTRANãªã©ã—ã‹çŸ¥ã‚‰ãªã‹ã£ãŸäººã«ã¯ã€ãœã²awk+シェルスクリプトã®ä¸–界を体験ã—ã¦æ¬²ã—ã„。気象データãªã©ã€å¤§é‡ã®ãƒ†ã‚スト形å¼æ•°å€¤ãƒ‡ãƒ¼ã‚¿ã‚’ã„ã˜ã‚‹äººã«ã¯ã€äººç”Ÿã®è»¢æ›ç‚¹ã¨è¨€ãˆã‚‹ã»ã©ã®è¡æ’ƒãŒå¾…ã£ã¦ã„る。 ãªãŠã€awk+シェルスクリプトã®ä½¿ç”¨ç’°å¢ƒã¯ã€å½“然ãªãŒã‚‰UNIXシェルã§ã‚る。Windowsユーザーã¯ã€Cygwinã§æ“¬ä¼¼çš„ã«UNIXシェル環境を構築ã—ã¦ãã ã•ã„。 å‚考ã«ãªã‚‹ãƒšãƒ¼ã‚¸ ã“ã“ã¨ã‹ ã“ã“ã¨ã‹ awkã¨ã¯? awkã¯ã€ãƒ†ã‚ストデータã®1è¡Œã¥ã¤ã«å¯¾ã—ã¦å‡¦ç†ã‚’ã™ã‚‹ã€ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è¨€èªž(スクリプト言語)ã§ã‚る。コンパイルã¯å¿…è¦ãªã„。UNIXã®ã‚³ãƒžãƒ³ãƒ‰ãƒ©ã‚¤ãƒ³ã®å‡ºåŠ›ã«ã€ãƒ‘イプ
〠nohup 】 ãƒã‚°ã‚¢ã‚¦ãƒˆã—ãŸå¾Œã‚‚コマンドを実行ã—続ã‘ã‚‹
nohupã§ã‚³ãƒžãƒ³ãƒ‰ã‚’実行ã—ãŸå ´åˆã¯ï¼Œãƒã‚°ã‚¢ã‚¦ãƒˆã—ã¦ã‚‚プãƒã‚°ãƒ©ãƒ を実行ã—続ã‘る。長ã„処ç†ã‚’è¡Œã£ã¦ãŠã‚Šï¼Œå¸ã‚’外ã—ãŸã„ã¨ããªã©ã«ä½¿ç”¨ã™ã‚‹ã¨ä¾¿åˆ©ã§ã‚る。ãƒã‚°ã‚¢ã‚¦ãƒˆã—ãŸå¾Œã¯ï¼Œã‚¸ãƒ§ãƒ–ã§ã¯ãªãプãƒã‚»ã‚¹ã¨ã—ã¦ç®¡ç†ã™ã‚‹ã“ã¨ã«ãªã‚‹ã€‚ã¾ãŸï¼Œå‡¦ç†ä¸ã«å‡ºåŠ›ã•ã‚ŒãŸãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ã¯"nohup.out"ã«ä¿å˜ã•ã‚Œã‚‹ã€‚ grepã‚’logout後も継続ã—ã¦å®Ÿè¡Œã—続ã‘ã‚‹ $ nohup grep "Jan" access_log > result & [1] 3769 nohup: appending output to `nohup.out' $ exit logout. â†ãƒã‚°ã‚¢ã‚¦ãƒˆã—ã¦ã‚‚実行ã—続ã‘ã‚‹
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インフラエンジニアã¨ã—ã¦ã‚ˆã使ã†ã‚³ãƒžãƒ³ãƒ‰é›† - Qiita
GitHub - ggreer/the_silver_searcher: A code-searching tool similar to ack, but faster.
Downloading an entire S3 bucket?
How Do I Find Out My Linux Gateway / Router IP Address?
Empty a file
Use space as a delimiter with cut command
/usr/local/Cellar/rbenv/0.3.0/libexec/../completions/rbenv.bash:14: command not found: complete · Issue #239 · rbenv/rbenv
Macã§ã‚³ãƒžãƒ³ãƒ‰ãƒ©ã‚¤ãƒ³ã§ã®å‡ºåŠ›ã‚’クリップボードã«ã‚³ãƒ”ーã™ã‚‹æ–¹æ³• - Qiita
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