extract number

[krava]

hi



I have file names like:
"data1", "esdu2sdt" ... "da15efe"

I would just like to extract number from filenames. There is absolutely no rule where the numbers are in the names. How to do this?


thanks
k.

 

[risby]

input your filenames on standard input with

ls | file_nos.awk

where file_nos.awk is

#! /usr/bin/awk -f
{
  if (match($1, /[0123456789]+/)) {
	print substr($1, RSTART, RLENGTH)
  }
}

to get

1
2
15

==========================================

abjure hippopotomonstrosesquipedaliophobia

 

[krava]

ok... this works fine....thanks for the tip