how do i replace a text string in a file with a random string? (with sed etc)

druuna · 09-02-2010, 10:44 AM

Hi,

ghostdog74's comment in post #8 is true in your case, the following code is a tiny bit simpler due to that change:

Code:

#!/bin/bash

rndString=$(awk '
BEGIN { 
split("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789", choices, "")
srand(systime())
i = 1
while ( i <= 40 ) {
  printf("%s", choices[int(1 + rand() * 61)])
  i++
  }
print ""
}')

sed -i.bak "s%<string>.*</string>%<string>$rndString</string>%" infile

steve51184 · 09-02-2010, 11:05 AM

nice thank you all again