Shell Programming and Scripting

Hi All,

Need to convert file names to upper case using tr command in Unix.

In a folder -> /apps/dd01/misc

there are two files like:

pi-abcd567sd.pdf
pi-efgh1.pdf

The output of should be like:

pi-ABCD567SD.pdf
pi-EFGH1.pdf


I have used the command to work as below:

for f in pi-*.pdf;
do
mv "$f" "pi-$(echo "$f" | cut -c 4-7 | tr '[a-z]' '[A-Z]').pdf"
done

How do we modify the above command so that it works out for multiple files in a folder as above.

Thanks for your time and help,

Regards,

this should work:

Code:

#  ls pi*
pi-abcd567sd.pdf   pi-efgh1.pdf

#  for i in pi*; do mv $i $(echo $i|nawk -F"[-.]" '{print $1"-"toupper($2)"."$3}');done

#  ls
pi-ABCD567SD.pdf   pi-EFGH1.pdf

HTH

Thanks a lot tytalus!it worked successfully.

Regards,

If you are renaming a lot of files, you will find that too slow. What you can do is to take advantage of "typeset -u" in ksh to ensure the value in the variable is uppercase

Code:

typeset -u upper
for orginal in *
do
  upper=$original
  mv $original $upper
done

With this, you only have to run "mv" command within the loop