How to replace a character in a file using awk

Hello,
Does anyone has a sample script to replace a character in a file using awk?
Regards,
Edited by: slsam01 on Jul 15, 2012 12:56 PM

Hi
awk it's not best for this job.
For replace charecter - generaly use tr or sed
Example on awk:
awk -F<old_char> ' { for (i=1; i<NF ;i++ ) printf ( "%s<new_char>", $i ); print $NF }' <file>
#Replace "e" on "a" in /etc/hosts
awk -Fe ' { for (i=1; i<NF ;i++ ) printf ( "%sa", $i ); print $NF }' /etc/hosts
Regards.
PS. Same on *tr"
cat file | tr "e" "a"

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