topic Re: Accept caps and lowercase in script in Operating System - HP-UX

Accept caps and lowercase in script

dev44 — Tue, 16 Jun 2009 13:51:04 GMT

Hi,

I have the following:

elif [ $ANS = ALL ]; then
echo "worked"

My script works great if the input is exactly ALL. How do I allow "all" "All" etc...

Re: Accept caps and lowercase in script

James R. Ferguson — Tue, 16 Jun 2009 13:55:16 GMT

Hi:

An easy way is to use 'typeset -l' which cause everything to be lower-cased:

...
typeset -l ANS
read ANS
...

Now you need only compare in lowercase.

Regards!

...JRF...

Re: Accept caps and lowercase in script

dev44 — Tue, 16 Jun 2009 14:53:19 GMT

Hi James...thanks for the response. It didn't recognize it as ALL or all with typeset -l ANS in there. Also, sometimes the ans will be numeric...will typeset -l cause problems with that?

Re: Accept caps and lowercase in script

Mel Burslan — Tue, 16 Jun 2009 15:15:20 GMT

are you sure it is not working ? Did you specify -l switch correctly (that is not a capital i, it is a lowercase L)

also, numeric entries should not matter as they will be interpreted as strings. It will be a problem if you making a numeric comparison in your if [] constructs, but for the code segment you provided, entering numerics is fine

Re: Accept caps and lowercase in script

James R. Ferguson — Tue, 16 Jun 2009 15:16:28 GMT

Hi (again):

I think you missed my point:

# typeset -l ANS;read ANS;[ "$ANS" = "all" ] && echo "OK" || echo "NOT_OK"

> Also, sometimes the ans will be numeric...will typeset -l cause problems with that?

No, the conversion to all lowercase only affects letters.

Regards!

...JRF...

Re: Accept caps and lowercase in script

dev44 — Tue, 16 Jun 2009 15:51:55 GMT

#! /usr/bin/ksh

out=/tmp/omni.out
if [ -f $out ]; then
rm $out
fi

ps -ef |grep -i omni |awk '{print $2}' >$out
ps -ef |grep -i omni
echo "Please select the Process ID to kill (second column),"
echo " or type all if you want all omni processes killed. \n"
typeset -l ANS
read ANS

if grep -q $ANS $out; then
echo "This is a valid PID...killing process"
# /usr/local/bin/sudo kill -9 $ANS
elif [ $ANS = ALL ]; then
echo "All omni processes will be terminated"
# for i in `cat $out`; do
# /usr/local/bin/sudo kill -9 $i
# done
else
echo "This PID is not valid. Run the script again and"
echo "select your PID from the second column, or type ALL to kill all omni processes."
fi
rm $out

Output:

Please select the Process ID to kill (second column),
or type all if you want all omni processes killed.

all ->input by me
This PID is not valid. Run the script again and
select your PID from the second column, or type ALL to kill all omni processes.

I also typed ALL and it didn't like it either. When typeset -l isn't there I can type ALL and it works....

Re: Accept caps and lowercase in script

dev44 — Tue, 16 Jun 2009 15:53:10 GMT

I think I found it....I have

[$ANS = ALL] and should be [ $ANS = all ]

Thanks...

Re: Accept caps and lowercase in script

James R. Ferguson — Tue, 16 Jun 2009 16:00:50 GMT

Hi:

By using the 'typeset -l' _every_ letter is translated to lowercase in the variable typeset!

Your test:

[ $ANS = ALL ]

...will never evaluate true. You want to make it:

[ $ANS = all ]

After all (no pun) this allows you to say "ALL", "All", "aLL" or "aLl" any way you choose!

Regards!

...JRF...

Re: Accept caps and lowercase in script

Steven E. Protter — Tue, 16 Jun 2009 16:14:30 GMT

Shalom,

Seems like its time to actually test your script, versus asking us to evaluate it.

Resources
http://www.unix.com/shell-programming-scripting/31743-accepting-upper-lower-case.html

http://www.daniweb.com/forums/thread136257.html

Converting input:
http://www.cyberciti.biz/faq/linux-unix-shell-programming-converting-lowercase-uppercase/

SEP

Re: Accept caps and lowercase in script

Fredrik.eriksson — Wed, 17 Jun 2009 13:01:07 GMT

You can also use case for this (atleast in bash).

case $ANS in
case ALL|all)
Commands goes here
;;
case [Aa][Ll][Ll])
This method should work too, commands goes here
;;
case *)
if it didn't match, commands goes here
;;
esac

Best regards
Fredrik eriksson

Re: Accept caps and lowercase in script

Ken Martin_3 — Wed, 17 Jun 2009 17:46:42 GMT

You could try using tr and force
all input to uppercase without
having an effect on anything else.

ANS=`echo ${ANS} | tr [a-z][A-Z]`
elif [ $ANS = "ALL" ]; then
echo "worked"

-Ken

Re: Accept caps and lowercase in script

Steven Schweda — Thu, 18 Jun 2009 03:06:40 GMT

> You could try using tr [...]

Or, if you like typing the alphabet, there's
always "sed":

dy # echo 'aBcDeF' | sed -e 'y/abcdef/ABCDEF/'
ABCDEF

(Anything worth doing is worth doing with
"sed", I always say.)

Re: Accept caps and lowercase in script

Suraj K Sankari — Thu, 18 Jun 2009 03:37:44 GMT

Hi,

Please assign some points who give there valuable time for your problem.

To know how to assign points please go through the below link.

http://forums13.itrc.hp.com/service/forums/helptips.do?#33

Suraj