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How to 'grep' a continuous stream?

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: Isthatpossibletousegreponacontinuousstream? WhatImeanissortofatail-f<file>command,butwithgrepontheoutputinordert......

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Inner join on two text files

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: Lookingtoperformaninnerjoinontwodifferenttextfiles.BasicallyI\'mlookingfortheinnerjoinequivalentoftheGNUjoinprogram.D......

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Regex (grep) for multi-line search needed [duplica

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: PossibleDuplicate: HowcanIsearchforamultilinepatterninafile?Usepcregrep I\'mrunningagreptofindany*.sqlfilet......

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How to change the output color of echo in Linux

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: Iamtryingtoprintatextintheterminalusingechocommand. Iwanttoprintthetextinaredcolor.HowcanIdothat? 回答1: You......

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Setting an argument with bash

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: Ifrequentlyrunasimplebashcommand: rpm-Uvh--define\"_transaction_color3\"myPackage.rpm whichworksproperly. ButnowI\'mtryin......

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How to get CRON to call in the correct PATHs

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: I\'mtryingtogetcrontocallinthecorrectPATHs.WhenIrunaPythonscriptfromshellthescriptrunsfineasitusesthePATHssetin......

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Use expect in bash script to provide password to S

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: TothosewhowanttoreplythatIshoulduseSSHkeyspleaseabstain I\'mtryingtouseexpectinanbashscripttoprovidetheSSHpassword......

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How to compare two strings in dot separated versio

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: Isthereanywaytocomparesuchstringsonbash,e.g.:2.4.5and2.8and2.4.5.1? 回答1: HereisapureBashversionthatdoesn\'trequi......

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How do I test if a variable is a number in Bash?

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: Ijustcan\'tfigureouthowdoImakesureanargumentpassedtomyscriptisanumberornot. AllIwanttodoissomethinglikethis: te......

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Argument list too long error for rm, cp, mv comman

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: IhaveseveralhundredPDFsunderadirectoryinUNIX.ThenamesofthePDFsarereallylong(approx.60chars). WhenItrytodeleteallPD......

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sed in-place flag that works both on Mac (BSD) and

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: Isthereaninvocationofsedtodoin-placeeditingwithoutbackupsthatworksbothonLinuxandMac?WhiletheBSDsedshippedwithOSXsee......

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What killed my process and why?

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: MyapplicationrunsasabackgroundprocessonLinux.ItiscurrentlystartedatthecommandlineinaTerminalwindow. Recentlyauserwas......

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How do I write stderr to a file while using “tee”

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: Iknowhowtouseteetowritetheoutput(STDOUT)ofaaa.shtobbb.out,whilestilldisplayingitintheterminal: ./aaa.sh|teebbb.out ......

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Where can I set environment variables that crontab

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: Ihaveacrontabrunningeveryhour.Theuserrunningithasenvironmentvariablessinthe.bash_profilethatworkwhentheuserrunsthejob......

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How do I prompt for Yes/No/Cancel input in a Linux

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: Iwanttopauseinputinashellscript,andprompttheuserforchoices.Thestandard\'Yes,No,orCancel\'typequestion.HowdoIaccompl......