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Full Discussion: Need some help modifying script
Top Forums Shell Programming and Scripting Need some help modifying script Post 302633799 by jjj0923 on Wednesday 2nd of May 2012 12:38:06 PM
Old 05-02-2012
Need some help modifying script
I have a script that currently runs fine and I need to add or || (or) condition to the if statement and I'm not sure the exact syntax as it relates to the use of brackets.

my current script starts like this:

Code:
errLog="/usr/local/website-logs/error.log"
apacheRestart="service httpd restart"
failRegex="exit signal Segmentation fault"
scriptLog="/usr/local/websites-logs/`basename $0`.log"

while true; do
echo "`date` (re)starting control loop"
tail --follow=name --retry -n 0 "$errLog" 2>/dev/null | while read logLine; do
if [[ `echo "$logLine" | egrep "$failRegex"` ]]; then

I want to add an OR condition to my if statement and wondered if this is the correct syntax?

Code:
#!/bin/bash

errLog="/usr/local/website-logs/error.log"
apacheRestart="service httpd restart"
failRegex="exit signal Segmentation fault"
failRegex1="server seems busy"
scriptLog="/usr/local/websites-logs/`basename $0`.log"

while true; do
echo "`date` (re)starting control loop"
tail --follow=name --retry -n 0 "$errLog" 2>/dev/null | while read logLine; do
if [[ `echo "$logLine" | egrep "$failRegex"` ]] ||  [[ `echo "$logLine" | egrep "$failRegex1"` ]]; then

---------- Post updated at 12:38 PM ---------- Previous update was at 12:33 PM ----------

and is there some special need to the double brackets in this script I found online?
 

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LEARN ABOUT DEBIAN

git-instaweb

GIT-INSTAWEB(1) 						    Git Manual							   GIT-INSTAWEB(1)

NAME

       git-instaweb - Instantly browse your working repository in gitweb

SYNOPSIS

       git instaweb [--local] [--httpd=<httpd>] [--port=<port>]
		      [--browser=<browser>]
       git instaweb [--start] [--stop] [--restart]

DESCRIPTION

       A simple script to set up gitweb and a web server for browsing the local repository.

OPTIONS

       -l, --local
	   Only bind the web server to the local IP (127.0.0.1).

       -d, --httpd
	   The HTTP daemon command-line that will be executed. Command-line options may be specified here, and the configuration file will be
	   added at the end of the command-line. Currently apache2, lighttpd, mongoose, plackup and webrick are supported. (Default: lighttpd)

       -m, --module-path
	   The module path (only needed if httpd is Apache). (Default: /usr/lib/apache2/modules)

       -p, --port
	   The port number to bind the httpd to. (Default: 1234)

       -b, --browser
	   The web browser that should be used to view the gitweb page. This will be passed to the git web--browse helper script along with the
	   URL of the gitweb instance. See git-web--browse(1) for more information about this. If the script fails, the URL will be printed to
	   stdout.

       start, --start
	   Start the httpd instance and exit. Regenerate configuration files as necessary for spawning a new instance.

       stop, --stop
	   Stop the httpd instance and exit. This does not generate any of the configuration files for spawning a new instance, nor does it close
	   the browser.

       restart, --restart
	   Restart the httpd instance and exit. Regenerate configuration files as necessary for spawning a new instance.

CONFIGURATION

       You may specify configuration in your .git/config

	   [instaweb]
		   local = true
		   httpd = apache2 -f
		   port = 4321
		   browser = konqueror
		   modulepath = /usr/lib/apache2/modules

       If the configuration variable instaweb.browser is not set, web.browser will be used instead if it is defined. See git-web--browse(1) for
       more information about this.

SEE ALSO

       gitweb(1)

GIT

       Part of the git(1) suite

Git 1.7.10.4							    11/24/2012							   GIT-INSTAWEB(1)
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