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Full Discussion: Loop with output to script?
Top Forums Shell Programming and Scripting Loop with output to script? Post 302836133 by wrnganswr on Tuesday 23rd of July 2013 02:44:32 PM
Old 07-23-2013
Loop with output to script?
Hey guys,

I am VERY new to linux scripting and was wondering if you could help me with the following:

essentially the use case is the following...a service crashes and a script must be executed to rerun 3000 entries one at a time....your options are to do each of those manually, 1 at a time
or to write some type of loop to go through them
the question is really to read values from the file, send each line to the screen (to show which one you're on), and then send it to the script
I would like to write a loop script for this but am having some issues with my knowledge. I know this may be basic for some of you, but we all gotta start somewhere and im trying to learn.
 

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LEARN ABOUT CENTOS

service

service(8)						      System Manager's Manual							service(8)

NAME

       service - run a System V init script

SYNOPSIS

       service SCRIPT COMMAND [OPTIONS]

       service --status-all

       service --help | -h | --version

DESCRIPTION

       service runs a System V init script in as predictable environment as possible, removing most environment variables and with current working
       directory set to /.

       The SCRIPT parameter specifies a System V init script, located in /etc/init.d/SCRIPT.  The  supported  values  of  COMMAND  depend  on  the
       invoked	script,  service  passes  COMMAND and OPTIONS it to the init script unmodified.  All scripts should support at least the start and
       stop commands.  As a special case, if COMMAND is --full-restart, the script is run twice, first with the stop command, then with the  start
       command.

       service --status-all runs all init scripts, in alphabetical order, with the status command.

       If the init script file does not exist, the script tries to use legacy actions.	If there is no suitable legacy action found and COMMAND is
       one of actions specified in LSB Core Specification, input is redirected to the systemctl.  Otherwise the command fails with return code 2.

FILES

       /etc/init.d
	      The directory containing System V init scripts.

ENVIRONMENT

       LANG, TERM
	      The only environment variables passed to the init scripts.

SEE ALSO

       chkconfig(8), ntsysv(8), systemd(1), systemctl(8), systemd.service(5)

								     Jan 2006								service(8)
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