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Full Discussion: Creating a menu within a script file
Top Forums Shell Programming and Scripting Creating a menu within a script file Post 302150027 by robsonde on Sunday 9th of December 2007 11:06:55 PM
Old 12-10-2007
#!/bin/ksh
while true
do
print "What do you need to do today?"

cat << ENDINPUT # this is the start of a "here document"
1. Display all files in a user's home directory.
2. Welcome yourself to the program.
3. Display System Information
4. Exit back to Windows
ENDINPUT # this marks the end of the "here document"

print -n "Please enter your choice."
read option

case $option # this is a case statment , much like many if/then statments
1)
print "here we do all the code for option 1"
;;
2)
print "here we do all the code for option 2"
;;
3)
print "here we do all the code for option 3"
;;
4)
print "here we do all the code for option 4"
exit 0 # this will exit back to the shell
;;

*) # this line will catch anything other than 1-4 options.
print "Invalid option, Please try again. Use ’1’-’4’"
;;
esac # this ugly bit is the end marker of the case statment.
done







for more infomation on the "here document" stuff have a read on google.
BTW this code is untested and so probly has bugs :-)
 

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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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