UNIX for Dummies Questions & Answers

Originally Posted by vbe

Are you sure about the command rename to me sounds like Tcl... why did you not use mv?

mv '*.txt' '*.bak'

For example, to rename all files matching "*.bak" to strip the extension, you might say

rename 's/\.bak$//' *.bak

Originally Posted by mukulverma2408

Tried using mv, but no luck

Code:

find /home/arpu/test -name '*.txt'  -exec mv '*.txt' '*.bak'  {}  \;

Parameter Expansion
The `$' character introduces parameter expansion, command substitution, or arithmetic expansion.
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${parameter%word}
${parameter%%word}
Remove matching suffix pattern. The word is expanded to produce a pattern just as in pathname expansion. If the pattern matches a trailing portion of the
expanded value of parameter, then the result of the expansion is the expanded value of parameter with the shortest matching pattern (the ``%'' case) or the
longest matching pattern (the ``%%'' case) deleted.