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Loopsallowustoperformasetofoperationsovermultipleitems,suchasasetoffilesorfoldersortheresultsofacommand.Inthischapterwe'lllook ...,Toloopthroughdirectoriesandfilesinbash,weuseaglobalpatternnamed“wildcard”whichisastandardpatternthatmatchesallfiles.Butwewillmatch ...,2013年12月27日—runsashellcommandandinsertsitsoutputatthatpointinthecommandline;basenamesomepath.txtoutputsthebasepartofsomepath,wi...
![awk直行加總與平均值的計算方式](https://i0.wp.com//img/photos/bs1.jpg?resize=425,225)
awk直行加總與平均值的計算方式
若您常常需要寫shellscript來幫助自己工作,那麼awk絕對不能少,當然今天我不是來介紹awk的基本運用的,老實說我會的也不是很多,我今天是針對我遇到的問題來備忘一下!譬如說一個檔案abc$catabc12345678910若只...