Cannot get getopts and case to assign values...

[pmcmicha]

I am running the following command, but I can not getting a return value from getopts. I am on SCO Unixware 7.1.1 and running KSH 93.

#!/usr/bin/ksh -p

while getopts ":b:d:" ARG
do
case $ARG in
b)
COUNT=0
FCOUNT=2
;;
d)
COUNT=0
FCOUNT=1
;;
p)
COUNT=1
FCOUNT=2
;;
*)
USAGE # This is a function to inform users.
;;
esac
done

shift $(($OPTIND - 1))

OPT=$@


The script only takes one of the above options at a time.

Thanks in advance.

 

[thutmose]

try this and let me know what you think.


#!/usr/bin/ksh -p

while getopts :b:d: ARG
do
case $ARG in
b)
COUNT=0
FCOUNT=2
;;
d)
COUNT=0
FCOUNT=1
;;
p)
COUNT=1
FCOUNT=2
;;
*)
USAGE # This is a function to inform users.
;;
esac
done



shift `let $OPTIND -1`

OPT=$@

 

[pmcmicha]

thutmose,

I removed the double quotes and modified the shift statement to what you have here, but the script failed out with this error:

UX:ksh: ERROR: -: more tokens expected
UX:ksh: ERROR: :: syntax error

I then tried to modify the shift statement to this:
shift `let $OPTIND=$OPTIND-1` and got the message below:

UX:ksh: ERROR: 0=0-1: assignment requires lvalue
UX:ksh: ERROR: =0-1:: syntax error


Any other thoughts on this? Thanks.

 

[pmcmicha]

Figured out the problem, should be:

#!/usr/bin/ksh -p

while getopts "bdp" ARG
do
case $ARG in
b)
COUNT=0
FCOUNT=2
;;
d)
COUNT=0
FCOUNT=1
;;
p)
COUNT=1
FCOUNT=2
;;
*)
USAGE # This is a function to inform users.
;;
esac
done

shift $(($OPTIND - 1))

OPT=$@


I just had to remove the colons from the while statement.

 

[art15t]

your problem wasn't anything to do with the colons and you don't need to quote the options. Your script falied because your shift expression was incorrect.

You had : shift $(($OPTIND -1))
should be: shift $((OPTIND -1))

Hope that helps!

Adam