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Full Discussion: simulate linux shell using script
Top Forums Shell Programming and Scripting simulate linux shell using script Post 302452431 by kopper on Friday 10th of September 2010 11:01:54 AM
Old 09-10-2010
simulate linux shell using script
hi guys

I was requested to create a script to simulate a linux shell so when the user opens linux he will get my linux menu with some options and one of those is a simulated linux shell

this is my code

Code:
#!/bin/ksh
while [ "$whichcmd" != end ]
     do
     read whichcmd?"Enter Command: "
     $whichcmd
     done
     whichcmd=0

but commands like these ones won't work

Code:
/sbin/ifconfig -a | less
/sbin/ifconfig > ip

it looks like when using | or > or similar characters my simulated command line won't work

any idea how to improve this simulated command line?

thanks a lot
 

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LEARN ABOUT DEBIAN

linux-version

LINUX-VERSION(1)					      General Commands Manual						  LINUX-VERSION(1)

NAME

       linux-version - operate on Linux kernel version strings

SYNOPSIS

       linux-version compare VERSION1 OP VERSION2

       linux-version sort [--reverse] [VERSION1 VERSION2 ...]

       linux-version list [--paths]

DESCRIPTION

       linux-version operates on Linux kernel version strings as reported by uname -r and used in file and directory names.  These version strings
       do not follow the same rules as Debian package version strings and should not be compared as such or as arbitrary strings.

       compare VERSION1 OP VERSION2
	      Compare version strings, where OP is a binary operator. linux-version returns success (zero result) if the  specified  condition	is
	      satisfied, and failure (nonzero result) otherwise.  The valid operators are: lt le eq ne ge gt

       sort [--reverse] [VERSION1 VERSION2 ...]
	      Sort the given version strings and print them in order from lowest to highest.  If the --reverse option is used, print them in order
	      from highest to lowest.

	      If no version strings are given as arguments, the version strings will instead be read from standard input, one per line.  They  may
	      be suffixed by arbitrary text after a space, which will be included in the output.  This means that, for example:

	      linux-version list --paths | linux-version sort --reverse

	      will list the installed versions and corresponding paths in order from highest to lowest version.

       list [--paths]
	      List kernel versions installed in the customary location.  If the --paths option, show the corresponding path for each version.

AUTHOR

       linux-version and this manual page were written by Ben Hutchings as part of the Debian linux-base package.

								   30 March 2011						  LINUX-VERSION(1)
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