Answer Posted / aravind s

basename is the appropriate command to cut the unwanted
string from a filename

for example
$basename unix.txt txt #txt stripped off
unix.
-----------------------
for your problem the solution is

for i in `find . -name '*.txt'`|xargs ls; do
leftname=`basename $i txt`
mv $i ${leftname}doc
done
-----------------------

basename isn't a shell bulletin, but an external command.
The reason why we deal with it here is that it's most
effective when used with the for loop.

Ref: Unix Concepts & Applications - Sumitabha Das

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