grep,awk和sed

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commons:
　　all of them could use regular-expression to match the result.

differences:
　　1)grep:
　　　　search for files with patterns.
　　2)awk:
　　　　anylyst for ‘fields‘; add addition message.
　　3)sed:
　　　　focus on lines of a file,including ‘append,insert,delete‘,or even a range of lines.

grep,awk和sed

标签：io   strong   for   ar   line   ad   on   res   c   

原文地址：http://www.cnblogs.com/listened/p/3929349.html