Use Linux script to batch change file names in a folder

jiapei100 · 11-09-2009, 02:28 AM

I would like to change file names in two ways

1)
1.jpg -> 0001.jpg
2.jpg -> 0002.jpg
...
x.jpg -> 000x.jpg
...
xy.jpg -> 00xy.jpg

2)
5201.jpg -> 5001.jpg
5202.jpg -> 5002.jpg
...
5xyz.jpg -> 5(x-2)yz.jpg (where x >= 2)

Can anybody please be kind enough to help???

Best Regards
JIA

David the H. · 11-09-2009, 02:59 AM

Try doing an archive or google search perhaps?

(Sorry for the snarky answer, but do you have any idea how often this kind of question comes up?)

evo2 · 11-09-2009, 03:04 AM

Quote:

Originally Posted by jiapei100

I would like to change file names in two ways

1)
1.jpg -> 0001.jpg
2.jpg -> 0002.jpg
...
x.jpg -> 000x.jpg
...
xy.jpg -> 00xy.jpg

There are cleaner ways (which others may suggest), but for a quick and dirty approach you could use something like

Code:

for f in *.jpg ;do
  b="`basename $f .jpg`"
  mv $f `printf '%04i.jpg' $b` 
done

Quote:

Originally Posted by jiapei100

2)
5201.jpg -> 5001.jpg
5202.jpg -> 5002.jpg
...
5xyz.jpg -> 5(x-2)yz.jpg (where x >= 2)

This one is even dirtier!

Code:

for f in *.jpg ; do
  b=`basename $f .jpg`
  mv $f "`expr $b - 200`.jpg"
done

Please note that these solutions are untested and could crash and burn depending on what else is in the directory you run them in. Use at your own risk. Good luck!

Evo2.

ghostdog74 · 11-09-2009, 06:33 AM

if you have Python 2.4+ and don't mind a ready made script, you can use this
usage:

Code:

$ ls -1
10.jpg
1.jpg
2.jpg
3.jpg
4.jpg
5.jpg
6.jpg
7.jpg
8.jpg
9.jpg

$ filerenamer.py -s ".*" -e "0001:9999.jpg" -n  -l "*.jpg"
==>>>>  [ /home/1.jpg ]==>[ /home/0001.jpg ]
==>>>>  [ /home/2.jpg ]==>[ /home/0002.jpg ]
==>>>>  [ /home/3.jpg ]==>[ /home/0003.jpg ]
==>>>>  [ /home/4.jpg ]==>[ /home/0004.jpg ]
==>>>>  [ /home/5.jpg ]==>[ /home/0005.jpg ]
==>>>>  [ /home/6.jpg ]==>[ /home/0006.jpg ]
==>>>>  [ /home/7.jpg ]==>[ /home/0007.jpg ]
==>>>>  [ /home/8.jpg ]==>[ /home/0008.jpg ]
==>>>>  [ /home/9.jpg ]==>[ /home/0009.jpg ]
==>>>>  [ /home/10.jpg ]==>[ /home/0010.jpg ]

$ ls -1
5201.jpg
5202.jpg
5203.jpg
5204.jpg
5205.jpg
5206.jpg
5207.jpg
5208.jpg
5209.jpg
5210.jpg

$ filerenamer.py -s ".*" -e "5001:5999.jpg" -n  -l "52*.jpg"
==>>>>  [ /home/5201.jpg ]==>[ /home/5001.jpg ]
==>>>>  [ /home/5202.jpg ]==>[ /home/5002.jpg ]
==>>>>  [ /home/5203.jpg ]==>[ /home/5003.jpg ]
==>>>>  [ /home/5204.jpg ]==>[ /home/5004.jpg ]
==>>>>  [ /home/5205.jpg ]==>[ /home/5005.jpg ]
==>>>>  [ /home/5206.jpg ]==>[ /home/5006.jpg ]
==>>>>  [ /home/5207.jpg ]==>[ /home/5007.jpg ]
==>>>>  [ /home/5208.jpg ]==>[ /home/5008.jpg ]
==>>>>  [ /home/5209.jpg ]==>[ /home/5009.jpg ]
==>>>>  [ /home/5210.jpg ]==>[ /home/5010.jpg ]

remove the -l option to commit changes..