Shell Programming and Scripting

Hi ,

I am kind of new to shell scripting and found a situation to handle ...


I have few files which will be ftpd in to our sustem , the file names needs to be renamed based on condition.




------------
The files needs to be renamed if the file name contains "JUNFOR" and "2013" in then.

The rename should happen only for JUNFOR and 2013 combinations.

The folder can contain any number of files in it .. The first three files for one set and the second and so forth.

Please let me know how to handle this renaming.

Try this, if it echo's the mv command correctly, then remove echo and try

Code:

for file in *JUNFOR_2013*.TXT
do 
  echo "mv $file ${file/JUNFOR/FOR13}"
done

--ahamed

Thank you Ahamed,

I got the following error message when I tried to execute it.


Please find the attachment for the screen shot.

Thank you.

Better

Code:

...
echo mv "$file" "${file/JUNFOR/FOR13}"

and remove the echo to really execute.

Try this

Code:

for file in *JUNFOR_2013*.TXT
do 
  new_file=${file/JUNFOR/FOR13}
  mv "$file" "$new_file"
done

--ahamed

If your shell does not have built-in substitution, sed can do it

Code:

\ls |
while read filename
do
 newname=`echo "$filename" | sed -n 's/JUNFOR_2013/FOR13_2013/p'`
 [ -n "$newname" ] &&
 echo mv "$filename" "$newname"
done

Hi


Thank you for your quick response.


For both the solution i am getting the same error


"sh[3]: "${filename/JUNFOR_2013/FOR13_2013}": The specified substitution is not valid for this command."

Is the Mv syntax to conditionally rename is particular for any one version of Unix ?

Here is what I did .

Code:

$touch AE_JUNFOR_2013_MTD_2013-04-09-08-30-09.TXT
$touch AE_JUNFOR_2013_YTD_2013-04-09-08-30-09.TXT
$touch temp_AE_JUNFOR_2013_MTD_2013-04-09-08-30-09.TXT

$for filename in *JUNFOR_2013*.TXT
>do
>  echo mv "$filename" "${filename/JUNFOR_2013/FOR13_2013}"
>done

I got the above error.


Please let me know if I am doing any wrong in executing the commands.

---------- Post updated at 12:36 AM ---------- Previous update was at 12:34 AM ----------

Great .. it worked ... Awesome.

Thanks a lot !! I will implement it in over all script now.

Thanks again.

---------- Post updated at 12:37 AM ---------- Previous update was at 12:36 AM ----------

Thank you MadeInGermany and Ahamed.

Great .. sed - worked ... Awesome.

Thanks a lot !! I will implement it in over all script now.

Thanks again.