Is there a way i can pass the arguments as parameters or variables instead of positional arguments to a function, below i am calling the function defined in a script.
Call:
Code:
notify "Error While Generating The List File: ${GEN_PARAM_LIST9} For Feed Data Validation Errors In Main" "${GEN_PARAM_LOG9}" "${LOG_FILE}"
Can I do the call like below, because my call sometimes i would just call with only subject and i don't want to include a log file, sometimes i want to put Cc and sometimes don't want Cc. So I would like to have a better control on how i call or invoke instead of doing positional parameter passing as it would mess up my scripts and lot of maintenance. How do i do that?
Code:
noticy s="Error While Generating The List File: ${GEN_PARAM_LIST9} For Feed Data Validation Errors In Main" L1="${GEN_PARAM_LOG9}" L2="${LOG_FILE}"
Script:
Code:
### Function To Send An Email
notify()
{
#This Function Arguments Should Follow Below Order Only
# $1 - Subject
# $2 - File(Message Body)
# $3 - File(Message Attachment)
if [ ! -z "$3" ]
then
/usr/bin/mutt -s "$1" -i "$2" -a "$3" "$EMAIL_LIST"</dev/null
elif [ ! -z "$2" ]
then
/usr/bin/mutt -s "$1" -a "$2" "$EMAIL_LIST"</dev/null
elif [ ! -z "$1" ]
then
/usr/bin/mutt -s "$1" "$EMAIL_LIST"</dev/null
else
/usr/bin/mutt -s "Error No Subject/Argument" "$EMAIL_LIST"</dev/null
fi
}
For shell functions there is the same parameter passing convention in place as for scripts: you can use positional parameters, meaning that their position define their function - like the first parameter is a name, the second an address, the third a phone number, etc..
You can use options instead, which will work regardless of their position because they are qualified. The following commands will lead to the same values being passed:
Code:
command -a aVal -b bVal -c cVal
command -b bVal -a aVal -c cVal
command -c cVal -a aVal -b bVal
Here, the values "aVal", "bVal" and "cVal" are "qualified" by introducing them with certain switches, therefore their position - first, second or third - doesn't matter. There is an utility for decoding such commandlines, which is called getopt/getopts. It is as well an executable as a shell builtin (at least in common shells), both word the same way. I suggest you read the man page of it and ask again if you have further questions.
Hi,
Is there a special positional variables for when using the dot (.)?
Scripts are as below:
$: head -100 x.ksh /tmp/y.ksh
==> x.ksh <==
#!/bin/ksh
#
. /tmp/y.ksh 1234 abcd
echo "yvar1 = $yvar1"
echo "yvar2 = $yvar2"
==> /tmp/y.ksh <==
#!/bin/ksh (2 Replies)
I have a script that uses 2 arguments. I want to call the function part within this script using these same arguments. Below is what I came up with below script so far, any guidance would be helpful. Thank you!
cat backup.sh
#!/bin/bash
function usage {
echo "USAGE: $(basename $0)... (6 Replies)
I need to call a function within a code with $database and $ service as the arguments How do I proceed ? and how would a function be defined and these two arguments would be used inside the function?
calc_pref_avail $database $service
Best regards,
Vishal (7 Replies)
Hi,
I have create a Shell Script, with one function.
I want to call the script file in Java Program.
It working fine. but the problem is the function in the Shell Script is not executed.
Please suggest me,
Regards,
Nanthagopal A (2 Replies)
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this function will be called in same script by passing arguments
fun 1 2 3
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