set command and positional parameters

[djessi]

Hi all,
I am writing a shell script with positionnal parameters
and a set command (set `date`), the set command resets the positionnal parameters (taking the value of fields of date command)so that the arguments used when I execute my shell script are changed. How can I call them back inside my shell script (ksh).
Thanks for help
Consty

 

[khalidaaa]

Why don't you store them in an array for example!?

i=0
set *
while true
do
if [[ $# -eq 0 ]]
then
arr[i] = $1
shift
((i = i + 1))
done

Haven't tested the above to be honest!

Regards,
Khalid

 

[RodKnowlton]

I don't think you want that "set *" (which I think was meant to be "set $*") in khalidaaa's code. It'll create problems if you have any quoted parameters with embedded spaces, or more correctly any embedded field separators. Just remove it, and that code to store params in an array should work.

If you're using the "set `date`" to pull out individual parts of the date, you could avoid overwriting the command line parameters altogether by using format strings to get the information you need.

Example: [tt]dayabbrev=`date +"%a"`[/tt] will assign the abbreviated weekday name (i.e. Thu) to [tt]dayabbrev[/tt].

- Rod


IBM Certified Advanced Technical Expert pSeries and AIX 5L
CompTIA Linux+
CompTIA Security+

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[p5wizard]

imho syntax is wrong, should be

set -- `date`


HTH,

p5wizard

 

[khalidaaa]

OMG

Thanks Rod for the correction it must be mistyped!

Regards,
Khalid

 

[djessi]

Many thanks
Djessi