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Shell Programming and Scripting
Unix Dummy!
Post 302288389 by freixo on Tuesday 17th of February 2009 05:44:19 AM
02-17-2009
Unix Dummy!
Hi everyone!! i need some help to do the next exercice, if some one can help-me!
Perform a script to swap two lines of a file. The name of
file as the two line numbers are passed as a parameter. It should be
verify that the file exists, have the necessary permits and lines.
i try everthing, but i can do it!!
Perform a script to swap two lines of a file. The name of
file as the two line numbers are passed as a parameter. It should be
verify that the file exists, have the necessary permits and lines.
i try everthing, but i can do it!!
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LEARN ABOUT LINUX
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. 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)