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herb bertz
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Homework & Coursework Questions
03-07-2013
13
Lab ^
3,851
Posted By
anbu23
$ cat file 123456 12345 12345a dfdf 121 ...
$ cat file
123456
12345
12345a dfdf
121
12345 dfd
$ grep -w "[0-9]\{5\}" file
12345
12345 dfd
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