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Top Forums Shell Programming and Scripting Script to run command one by one Post 302795649 by misterx12345 on Thursday 18th of April 2013 06:15:19 AM
Old 04-18-2013
The script works great.
I am just trying to figure out the script.

"exec > log.txt 2>&1"
what is the function of exec , shows all output of everything being executed?
"do date "+cmd$i starting @ %c" "
how does the script know how to send this to the log.txt?
what is "ec=$? "

i=$((i + 1))
this tells the scripts to restart the commands but with the next cmd file?

Thx.
 

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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. EXIT CODES
service calls the init script and returns the status returned by it. 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
/etc/init.d/skeleton, update-rc.d(8), init(8), invoke-rc.d(8). Jan 2006 service(8)
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