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Top Forums Shell Programming and Scripting Passing shell variable to awk script Post 302602093 by Reboot on Sunday 26th of February 2012 02:28:58 AM
Old 02-26-2012
Passing shell variable to awk script

I want to pass a shell variable to awk script :

Code:
# cat file
PSAPSR3                           3722000   91989.25          2         98
PSAPSR7                           1562000 77000.1875          5         95
PSAPUNDO                            92000  4087.5625          4         96

# NU="PSAPSR7";export NU
 
# awk '$1 == "$NU" {print}' file

But above command is not working...??? Smilie Smilie Smilie

Expected output :

Code:
PSAPSR7                           1562000 77000.1875          5         95

Thanks...

Last edited by radoulov; 02-26-2012 at 03:46 AM.. Reason: Code tags!
 

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SYSTEMD-ASK-PASSWORD-CONSOLE.SERVICE(8) 	       systemd-ask-password-console.service		   SYSTEMD-ASK-PASSWORD-CONSOLE.SERVICE(8)

NAME
systemd-ask-password-console.service, systemd-ask-password-console.path, systemd-ask-password-wall.service, systemd-ask-password-wall.path - Query the user for system passwords on the console and via wall SYNOPSIS
systemd-ask-password-console.service systemd-ask-password-console.path systemd-ask-password-wall.service systemd-ask-password-wall.path DESCRIPTION
systemd-ask-password-console.service is a system service that queries the user for system passwords (such as hard disk encryption keys and SSL certificate passphrases) on the console. It is intended to be used during boot to ensure proper handling of passwords necessary for boot. systemd-ask-password-wall.service is a system service that informs all logged in users for system passwords via wall(1). It is intended to be used after boot to ensure that users are properly notified. See the developer documentation[1] for more information about the system password logic. Note that these services invoke systemd-tty-ask-password-agent(1) with either the --watch --console or --watch --wall command line parameters. SEE ALSO
systemd(1), systemd-tty-ask-password-agent(1), wall(1) NOTES
1. developer documentation https://www.freedesktop.org/wiki/Software/systemd/PasswordAgents systemd 237 SYSTEMD-ASK-PASSWORD-CONSOLE.SERVICE(8)
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