02-20-2019
Your question is not clear at all. In first code Input arguments are always defined in the variable argc. In the second example, the parameters for the 64-bit system are enumerated. Since the transition from 32 to 64-bit broke the compatibility of the transfer in a function an indefinite number of parameters. Some parameters were passed to the function through the registers and not through the stack. Therefore, macros were invented va_list, va_start, va_end. These are all different things. Choose what you need.
This User Gave Thanks to nezabudka For This Post:
10 More Discussions You Might Find Interesting
1. Programming
I'm using getopt() to get command line options.One the optons accepts and argument.The argument is and offset.I was wondering how can I scecify that it's argument is of the type off_t.I've something like this "offset=(off_t)optarg" and it don't work. (1 Reply)
Discussion started by: angelfly
1 Replies
2. Shell Programming and Scripting
scriptname
i have made a script to perform so tasks and i managed to complete the tasks for all the options
the problem i am facing is that i can run the scripts individually but i would like to make it such that it can accept multiple options and give me the appropriate output
e.g.... (1 Reply)
Discussion started by: problems
1 Replies
3. Shell Programming and Scripting
#!/bin/sh
set -- `getopt "abco:" "$@"`
a= b= c= o=
while :
do
case "$1" in
-a) a=1;;
-b) b=1;;
-c) c=1;;
-o) shift; o="$1";;
--) break;;
esac
shift
done
shift # get rid of --
# rest of script...
# e.g.
ls -l $@ (6 Replies)
Discussion started by: Hitori
6 Replies
4. Shell Programming and Scripting
I m trying to use getopt
This is my script, but it doesn't take argument in variable,
Please help.
set - - `getopt mscl: $*`
if
then
echo "Exiting...."
exit 2
fi
for i in $*
do
case $i in
-m) MAIL="$i"; shift;;
-s) SCRIPT=$OPTARG; shift;;
-c) COB=$OPTARG; shift;;... (2 Replies)
Discussion started by: darshakraut
2 Replies
5. Shell Programming and Scripting
:)
Can anybody help me about how to use getopt in shell scripting. (3 Replies)
Discussion started by: darshakraut
3 Replies
6. Solaris
Hi All,
Could anyone tell me how to use getopt command.....?
Thanks,
Pintu (2 Replies)
Discussion started by: pintupatro
2 Replies
7. Shell Programming and Scripting
Hi,
I want to use the getopt function to parse some arguments for a script.
while getopts "i:f:r:" OPTION
do
case $OPTION in
i) iter=$OPTARG;;
f) frame=$OPTARG;;
r) roi=$OPTARG;;
?) echo Usage: ......
exit 2;;
esac
done
However, I... (5 Replies)
Discussion started by: giorgos193
5 Replies
8. HP-UX
I have a macro defined like this:
#define MM7_RETURN(errorNr, ...) \
{ \
if(errorNr != MM7_RS_NoError) \
{ ... (1 Reply)
Discussion started by: Marzullo
1 Replies
9. Shell Programming and Scripting
I am struggling to understand how getopt can be used in a csh script.
can anybody post a csh script using getopt.
Please! (4 Replies)
Discussion started by: animesharma
4 Replies
10. Shell Programming and Scripting
Hi All,
An old work friend wrote a script which I've been trying to understand how a section of it currently works and work out how i can add some command line switches which i can use later in the script to append the output depending on the command line arguements.
Currently it works by... (1 Reply)
Discussion started by: mutley2202
1 Replies
getopt(1) General Commands Manual getopt(1)
NAME
getopt - parse command options
SYNOPSIS
optstring args
DESCRIPTION
is used to break up options in command lines for easy parsing by shell procedures and to check for legal options. optstring is a string of
recognized option letters (see getopt(3C)). If a letter is followed by a colon, the option is expected to have an argument, which may or
may not be separated from it by whitespace.
The positional parameters ...) of the shell are reset so that each option is preceded by a and is in its own positional parameter; each
option argument is also parsed into its own positional parameter.
recognizes two hyphens to delimit the end of the options. If absent, places at the end of the options.
The most common use of is in the shell's command (see the example below) where converts the command line to a more easily parsed form.
writes the modified command line to the standard output.
EXTERNAL INFLUENCES
Environment Variables
determines the language in which messages are displayed.
If is not specified in the environment or is set to the empty string, the value of is used as a default for each unspecified or empty vari-
able.
If is not specified or is set to the empty string, a default of "C" (see lang(5)) is used instead of If any internationalization variable
contains an invalid setting, behaves as if all internationalization variables are set to "C". See environ(5).
International Code Set Support
Single-byte and multibyte character code sets are supported.
DIAGNOSTICS
prints an error message on the standard error when it encounters an option letter that is not included in optstring.
EXAMPLES
The following code fragment processes the arguments for a command that can take the options or and the option which requires an argument:
This code accepts any of the following as equivalent:
WARNINGS
option arguments must not be null strings nor contain embedded blanks.
SEE ALSO
getopts(1), sh(1), getopt(3C).
getopt(1)