04-15-2009
How to replace a range of text with sed or awk?
Howdy!
I'm trying to automate editing of a configuration file (custom.conf for GDM). I need to find every line between a line that starts with "[daemon]" and the next line that starts with "[". When I find "[daemon]", I want to preserve that line, but then delete all the lines in that configuration section and then insert several new lines of text between the first match ("[daemon]") and the second match ("]").
I suspect that I can do this with sed or at least awk, but I'm not quite sure where to start Can anyone suggest which tool might be better suited to this task and provide some code that accomplishes what I'm talking about?
Thanks,
Tad
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LEARN ABOUT REDHAT
gdm-restart
gdm-restart(1m) User Commands gdm-restart(1m)
NAME
gdm-restart, gdm-safe-restart, gdm-stop - stop or restart GDM
SYNOPSIS
gdm-restart
gdm-safe-restart
gdm-stop
DESCRIPTION
gdm-restart stops and restarts GDM by sending a HUP signal to the GDM daemon. This command immediately terminates all sessions and logs out
users currently logged in with GDM.
gdm-safe-restart stops and restarts GDM by sending a USR1 signal to the GDM daemon. GDM is restarted as soon as all users log out.
gdm-stop stops GDM by sending a TERM signal to the GDM daemon.
FILES
The following files are used by this application:
/usr/bin/gdm-restart Executable to stop and restart GDM
/usr/bin/gdm-safe-restarExecutable to stop and restart GDM safely
/usr/bin/stop Executable to stop GDM
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWgnome-display-mgr |
+-----------------------------+-----------------------------+
|Interface stability |External |
+-----------------------------+-----------------------------+
SEE ALSO
Latest version of the GNOME Desktop User Guide for your platform.
gdm(1), gdmXnestchooser(1), gdmflexiserver(1), gdmphotosetup(1), gdmsetup(1), gdmthemetester(1), gdmconfig(1m)
NOTES
Written by Brian Cameron, Sun Microsystems Inc., 2004.
SunOS 5.10 1 Sep 2004 gdm-restart(1m)