Question

I need the right syntax to copy file.jpg 100 times with one command so to get
100 files named file001.jpg, file002.jpg, …, file100.jpg.
I’m using this but not working for me
any tips

#!/bin/bash

for x in `seq 1 100`; do

    if [[ x -lt 10 ]]; then cp file.jpg file-00$x.jpg;

    elif [[ x -lt 100 ]]; then cp file.jpg file-0$x.jpg;

    else cp file.jpg file-$x.jpg;

    fi

done

Answer 1

In your two if conditions, you’re missing the $ on $x, so you’re ending up comparing the string x, rather than the number.

As Basile Starynkevitch notes, though, the printf utility is probably a much better way to go here: $(printf "file-%03d.jpg" $x) gets you the right formatted string in a single line.