Question

I’m trying to create a shell script that shall convert certain Files according to some rules. The files are organized like this:

file_0000.adat
file_0001.adat
file_0002.adat
file_0003.adat
...
file_0010.adat
file_0011.adat
...
file_9999.adat

My current script looks like this:

#!/bin/sh

lauf=$(expr 0)

for filename in ../distData/file_*.adat
do
    ...
    lauf=$(expr $lauf + 1)
done;

But now I only want the files with numbers from 0000 to 1500. For the conversion I need the number of the file (done by the variable lauf in the script). Can’t figure out how to do this right now.

Thanks for replys.

Answer 1

Try something like:

for i in $(seq -w 1500) ; do
  if [ -f ../distData/file_${i}.adat ] ; then
    # do whatever, the file number is ${i}
  fi
done