Cut First Character From Line

Cut First Character From Line
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cat 12 |sed 's/.\(.*\)/\1/' ( 12 is the file name)

Removing the last three characters from every filename.

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$ cat files
apache-1.3.39.exe
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$ cat files | sed 's/\(.*\).../\1/'
apache-1.3.39
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Removing last character from each filename/strin.

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$ cat files |sed 's/\(.*\)./\1/'
apache-1.3.39.ex
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