passing named parameters to a K-shell script 1

[IMAUser]

Hi,

I guess it must be possible to pass in named parametrs, but I dont know how.
I know that you could read parameters by saying $1, $2, $3...etc., but the users want to pass in values in any order, but they will say like
$run_my_script.ksh PERCENT=10 NAME=JANE
OR
$run_my_script.ksh NAME=JOHN CITY=TIMBAKTOO

so within my script I need to be able to read the value for PERCENT, NAME and CITY if they are passed.

Anyone help me with this please.


Many Thanks

 

[hoinz]

Hi,

you will have to parse the input yourself;
man getopt or man getopts might give you a few ideas.

The examples given there could be easier to adjust if you could persuade your users to a syntax like this:
$run_my_script.ksh -p 10 -n JANE
OR
$run_my_script.ksh -n JOHN -c TIMBAKTOO

hope this helps

 

[columb]

Try looking at getops - but that is looking for

myscript -p <percent> -n <name> ....

Alternatively

for i in $@
do
  part1=$(expr $i : "\([^=]*\)*")
  part2=$(expr $i : "[^=]*=\(.*\)")
  case $part1 in
    NAME ) NAME=$part2;;
    CITY ) CITY=$part2;;
    ....
  esac
done

which is ugly but functional

Ceci n'est pas une signature
Columb Healy

 

[p5wizard]

or how about (assumes all params are given by name=value pair):

for i in $*
do
eval $i
done

echo $NAME
echo $PERCENT

HTH,

p5wizard

 

[columb]

p5wizard

Thanks, that's a new one on me! Have a star.

Ceci n'est pas une signature
Columb Healy

 

[RodKnowlton]

You could have them call the script with the parameters first, like:

NAME=JOHN CITY=TIMBAKTOO run_my_script.ksh

If you can slip a 'set -o keyword' into your users' profiles, then environmental variables can be defined anywhere on the command line, not just before the command, so the calls you originally described would work.

- Rod


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