Toralf Lund wrote:
Claude Jones wrote:
Could someone help. I have chosen a bad naming convention for a long
list, and I need to make a small alteration. The list looks like the
following
001-Fig 1-1.jpg 013-Fig 4-4a.jpg 024-Fig 5-6.jpg 035-Fig 5-17.jpg
etc...
I would like to add a 0 to each group of three numbers at the
beginning of each name so that 001-Fig 1-1.jpg becomes 0010-Fig
1--1.jpg for example.
Could someone help me with the quick way to do this?
How about
perl -pi~ -e 's/^[0-9]/0$&/' yourfile
?
(Replaces a digit at the start of a line with 0 followed by the
orignal digit. Backup file in yourfile~)
I notice now that this was not quite what you wanted, though.
perl -pi~ -e 's/^[0-9]{3}/$&0/' yourfile
or
perl -pi~ -e 's/-F/0$&/' yourfile
is probably more correct.
- T