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Shell Programming and Scripting
sed or awk
Post 302136728 by Cameron on Wednesday 19th of September 2007 09:51:00 AM
09-19-2007
Many thanks SanjayLinux, Klashxx & ghostdog74 for your replies.
Sanjay - too true - I used to remember using sed many years ago. Just been too long now.
Klashxx - thanks for the perl example, though my requirement isn't a case of plain substitution; rather replacement of the entire line.
ghostdog74 - yep a while has past since I first joined the forum. Was surprised I could even remember my UID & PWD for the site. Unfortunately because of my involvement in PCI and ISO work, I've not had much opportunity for sometime or a reason to use sed, let alone look at awk.
I was able to perform what I wanted to do via the command line, but would like to know how can I contain the following to a single-line command statement ??
$ sed '
> /^user/ c\
> user **** ****
> ' temp.txt
INPUT FILE:
user UID1 PWD1
user UID2 PWD2
user UID3 PWD3
get blah-blah-blah
close
bye
OUTPUT:
user **** ****
user **** ****
user **** ****
get blah
close
bye
Thanks in advance if you are able to assist with my query.
Cheers,
Cameron
Sanjay - too true - I used to remember using sed many years ago. Just been too long now.
Klashxx - thanks for the perl example, though my requirement isn't a case of plain substitution; rather replacement of the entire line.
ghostdog74 - yep a while has past since I first joined the forum. Was surprised I could even remember my UID & PWD for the site. Unfortunately because of my involvement in PCI and ISO work, I've not had much opportunity for sometime or a reason to use sed, let alone look at awk.
I was able to perform what I wanted to do via the command line, but would like to know how can I contain the following to a single-line command statement ??
$ sed '
> /^user/ c\
> user **** ****
> ' temp.txt
INPUT FILE:
user UID1 PWD1
user UID2 PWD2
user UID3 PWD3
get blah-blah-blah
close
bye
OUTPUT:
user **** ****
user **** ****
user **** ****
get blah
close
bye
Thanks in advance if you are able to assist with my query.
Cheers,
Cameron
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