請問怎麼抓[]中的字串 - Linux

By Harry
at 2010-09-17T11:49
at 2010-09-17T11:49
Table of Contents
我有一個檔案裡面長得像這樣
[abc]
wzbird
ptt
IBM
[google]
124
bbbbbb
aaaaaa
請問要怎麼用像grep這樣的指令抓[]中的字串呢?
就是我的輸出需要是
abc
我試了一下grep遇到符號好像不行
謝謝
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Linux
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By Carol
at 2010-09-20T18:27
at 2010-09-20T18:27
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