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Full Discussion: :integer expression expected
Top Forums Shell Programming and Scripting :integer expression expected Post 302464616 by Chubler_XL on Wednesday 20th of October 2010 02:26:22 PM
Old 10-20-2010
Try this:

Code:
echo $i

while true
do
    read NUM
    if [ $NUM -gt 0 -a $NUM -le $i ] 2> /dev/null; then
        break
    fi
    printf "$FBOLD\nInvalid number, please enter valid backup number: $FREG"
done

Also handles any non numeric NUM values: test will fail so break isn't executed, redirect stderr to /dev/null to hide shell error message.
Last edited by Chubler_XL; 10-20-2010 at 03:35 PM..
This User Gave Thanks to Chubler_XL For This Post:
methyl
 

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LEARN ABOUT DEBIAN

rushlast

RUSHLAST(1)							      Gnurush							       RUSHLAST(1)

NAME

       rushlast - retrieve information of previous uses of rush

SYNOPSIS

       rushlast [-F STRING] [-f DIR] [-n NUM] [--forward] [-H]

       rushlast {-v | -h | --usage}

DESCRIPTION

       rushlast is a utility to search backwards in the session history that GNU rush maintains about all users calling on its services.

OPTIONS

       -F STRING | --format=STRING
	      Use specified format string instead of the default string.

       -f DIR | --file=DIR
	      Use database directory DIR. Default location is /var/lib/rush.

       --forward
	      Display entries in chronological instead of reverse time order.  The latter is the default mode of operation.

       -n NUM | --count=NUM | -NUM
	      Show at most NUM records. The numerical form '-NUM' is to provide compatibility with the standard utility last(1).

       -H | --no-header
	      Suppress the header line in printout.

       -v | --version
	      Display program version.

       -h | --help
	      Display a short help message.

       --usage
	      Display a concise usage summary.

SEE ALSO

       The  full  documentation for rushlast is maintained as a Texinfo manual. If the info and rush programs are properly installed at your site,
       the command

	      info rush

       should give you access to the complete manual.

       See also rush(8) and rushwho(1).

AUTHOR

       This text was written by Mats Erik Andersson for the Debian project, since the original source supplies a documentation only in the form of
       a GNU Texinfo manual.

GNU Rush 1.7							   December 2010						       RUSHLAST(1)
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