Never been a big fan of getopt in KSH, its very limited. What happens if
you have an option that you want to use the same letter for?
For example, db_id and db_password. You can't use -d for both of them right.
Therefore, I take advantage of KSH and do something like this that lets
you pass in more descriptive option names. Note, case does not make a
difference if you code like this.
hey
need help with getopts again.
i am using getopts to read my command line options and arguments. i can manage to do for options that have only one argument
e.g srcipt_name -f 3
i am able to use getopts to do this but i am having problems two accept more than two agruments
e.g.... (1 Reply)
hello there I am back with more questions (sorry it is been quite a while since I had done scripting). I had tried the search function to search for the threads that might have an answer to my question, but I could not find it, so I had decided to post it.
I had created the scripts below in ksh... (2 Replies)
is there a better way to check if all args are set???
while getopts h:p:u: opt
do
case "$opt" in
h) host="$OPTARG";;
p) port="$OPTARG";;
u) user="$OPTARG";;
\?)
echo >&2 \
"usage: $0 -h host -p port -u user"
exit 1;;
esac
done
... (1 Reply)
Hi
i have part of the scripts below ,getopt for -h or ? not working for me.
can anybody tell me if this sytax right or wrong.
#!/usr/bin/ksh
program=$(basename $0)
#####################################################################################
function usageerr
{
RC=1
... (3 Replies)
could anyone please tell me what this will automatically set my variable all=True....
#!/bin/sh
all=FALSE
while getopts a: option
do
case "option"
in
a) all=TRUE;;
/?) echo "...... "
exit 1;;
esac
done
if
then
echo "true"
else
echo "false" (2 Replies)
I am trying to set up prompts when you don't enter the right information or dont enter the information at all, when executing a script. Below is the question that i am asking and i am not sure how to set up the if statements to make sure that the user enters the name, cpu's, memory and ip. I was... (3 Replies)
Suppose I have a code below .
while getopts a: opt
do
case $opt in
a) app_name="$OPTARG";;
*) echo "$opt is an invalid option";
exit 1;;
?) echo "The value of $OPTARG is an invalid option";
exit 1;;
esac
done
Could anyone please tell me in which case my... (1 Reply)
Hi All,
I am writing a script to pass the getopts argument to the function which I have. But it as soon as I execute the script, the argument is taking it as blank. I tried using multiple way to check but its not working.
Can someone please let me know what wrong in this code.
function1()... (4 Replies)
Hi. Can somebody please show me an example of how to use getopts to assign a variable if it's been passed into the script but to set a default if no value has been passed in? And also how to handle a param with multiple values ... so a sub parse (can I use a function for this?)?
Here's my code... (1 Reply)
There are many places where I can see the syntax description for optargs, which, usually boils down to this:
getopts OPTSTRING VARNAME
where:
OPTSTRING tells getopts which options to expect and where to expect arguments
VARNAME tells getopts which shell-variable to use for option reporting... (2 Replies)
Discussion started by: sharkura
2 Replies
LEARN ABOUT ULTRIX
getopt
getopt(1) General Commands Manual getopt(1)Name
getopt - parse command options
Syntax
set - - getopt optstring $*
Description
The command breaks up options in command lines for easy parsing by Shell procedures and checks for legal options. The optstring option
letters are recognized if a letter is followed by a colon, the option expects an argument which may or may not be separated from it by
white space. For further information, see
The special option, specified by two minus signs (- -), delimits the end of the options. If the delimiters are used explicitly, recognizes
it; otherwise, generates it. In either case, places the delimiter at the end of the options. The positional parameters ($1 $2 ...) of the
shell are reset so that each option is preceded by a single minus sign (-) and is in its own positional parameter; each option argument is
also parsed into its own positional parameter.
Examples
The following code fragment shows how you can process the arguments for a command that can take the options a or b, as well as the option
o, which requires an argument:
#!/bin/sh5
set -- getopt abo: $*
if [ $? != 0 ]
then
echo $USAGE
exit 2
fi
for i in $*
do
case $i in
-a | -b) FLAG=$i; shift;;
-o) OARG=$2; shift 2;;
--) shift; break;;
esac
done
This code accepts any of the following as equivalent:
cmd -aoarg file file
cmd -a -o arg file file
cmd -oarg -a file file
cmd -a -oarg -- file file
Diagnostics
The command prints an error message on the standard error when it encounters an option letter not included in optstring.
See Alsosh5(1), getopt(3)getopt(1)