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Top Forums UNIX for Beginners Questions & Answers How to replace # in particular line? Post 303042921 by MadeInGermany on Friday 10th of January 2020 01:05:07 PM
Old 01-10-2020
Add #
Code:
sed '/^&@@10.10.10.10/ s/^/#/' /etc/rsyslog.conf

Remove #
Code:
sed '/^#&@@10.10.10.10/ s/^#//' /etc/rsyslog.conf

The & is special in sed in the replacement string. This is avoided now.
But:
The $ is special in a RE (the search string) if it's the last character.
The . is special in a RE: it means any character (not only a . character).

Better use the shell:
Code:
while IFS= read -r line
do
  case $line in
  # add a # character
  ( '&@@10.10.10.10'* ) line=#${line};;
  # remove a # character
  # ( '#&@@10.10.10.10'* ) line=${line#\#};;
  esac
  printf "%s\n" "$line"
done < /etc/rsyslog.conf

Within a 'string' the remaining problem character is '. The quick workaround is '\''.
This User Gave Thanks to MadeInGermany For This Post:
 

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grablogs.conf(4)						   File Formats 						  grablogs.conf(4)

NAME
grablogs.conf - grablogs configuration for libgrablogs.so of the plugins of gnome-system-log file SYNOPSIS
/usr/lib/gnome-system-log/plugins/grablogs.conf DESCRIPTION
The libgrablogs.so is a plugin for gnome-system-log(1), it colloct the log files from the system as many as possible. grablogs.conf is a configuration file that contains a set of lines mixed with sh(1) syntax codes and individual log files. libgrablogs.so will read the file try to get a log files list for gnome-system-log(1). Users can copy the file into $HOME/.gnome2/gnome-system-log/plugins/`uname -p` to overwrite the system default one. The grablogs.conf file contains the following configuration categories: [configs] Each line under this category is interpreted as a config file of System. The plugin will open the config file and try to find all system paths of the logs. [commands] Each line under this category is interpreted as a shell command and will be execute through a pipe. And each line of the out- put of the command will be interpreted as a log path. [logs] Each line under this category is interpreted as a log path. FILES
/usr/lib/gnome-system-log/plugins/grablogs.conf The system default configuration file for the plugin libgrablogs.so $HOME/.gnome2/gnome-system-log/plugins/`uname -p`/grablogs.conf The user specific configuration file for the plugin libgrablogs.so EMAMPLE
[configs] /etc/syslog.conf [commands] for i in `svcs -aH -o FMRI | grep -v lrc `; do svcprop -p restarter/logfile $i 2>/dev/null || svcprop -q -p restarter/alt_logfile $i 2>/dev/null ; done [logs] /var/log/messages /var/log/secure /var/log/maillog /var/log/cron /var/log/Xorg.0.log /var/log/XFree86.0.log /var/log/auth.log /var/log/cups/error_log SEE ALSO
gnome-system-log(1), pipelog.conf(1) gnome-utils 2.16.0 13 Oct 2006 grablogs.conf(4)
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