I understand the first and second arguments, but don't understand what is
I know that I send only two arguments, why do I need third? If I don't send it. And why is it strange N letter? The code is very old and I am converting it to Perl now
May i know how to pass an argument to a function in a shell script?
Sorry, i din stated that it is in a shell script in my previous post.
Means: checkStatus() {
...........
}
read status;
I wanna use the status in the function checkstatus, how... (2 Replies)
hi, I was wondering if there was a good way to create an array within a function, where the name is based on a passed argument? I tried this:
_____________________________
func(){
#take in 1st arg as the arrayname
arrayName=$1
let i=0
while read line
do
arrayName=${line}
let i+=1... (5 Replies)
Hi,
Can someone please explain to me how I can get a function to recognize a file given as an argument to a script.
Suppose the script has the argument as follows:
sh script file
and the function is as follows:
function display_file () {
cat $1
}
and it s then called
#main program... (1 Reply)
Here is the script:
#!/bin/bash
#set -xv
RAWDATAFILE="temp1"
GOODDATAFILE="temp2"
FindSOS()
{
local NUM=0 #return value for the id of SOS
local cnt=1
if grep "EOS" $1
then
sed -e 's/.*<CobDate>//' -e 's/<\/.*//' <$1 > ${RAWDATAFILE}
sed -n -e '/EOS/,/SOS/ s/*/&/p' <${RAWDATAFILE}... (2 Replies)
Hi all,
I am using pthread_cond_timedwait function in my program, to generate the time period of waiting i use gettimeoftheday function.
When i run the code after compiling i get a core dump error. However my program runs perfectly if i give a printf statement before the gettimeoftheday... (1 Reply)
Hi All,
Calling a function with one argument and storing the return value in a shell script is as below:( so far I know)
value="`fun_1 "argument1"`"
Its working perfectly for me.
Can u help me with passing more than one argument and storing the return value
Thnaks in advance
JS (1 Reply)
Hi,
I have 2 ksh scripts.
Script1.ksh contains function definition.
script1.ksh
function f1() {
while getopts a:c: args
do
case $args in
a) ARG1=$OPTARG ;;
c) ARG2=$OPTARG ;;
\?) echo "Error no valid Arguments passed"
esac
done
echo $ARG1
echo $ARG2
script2.sh (2 Replies)
I have the following code :
function1 ()
{
print "January"
}
function2()
{
case $1 in
January)
print "Dzisiaj mamy styczen"
;;
*)
;;
}
main()
{ (1 Reply)
Hi all,
In the given script code .
I want to pass the maximum value that variable "i" will have in function DivideJobs () to variable $max of function SubmitCondorJob().
Any help?
Thanks
#!/bin/bash ... (55 Replies)
I am converting shell script to Perl. In shell I have a code
parse_prog_args()
{
if
then
while
do
case $1 in
-P* | -p* )
export PROCESS_DATE=$2
export MM=`echo $2 | cut -c5-6`
export DD=`echo $2 | cut -c7-8`
export YY=`echo $2 | cut -c3-4`
export... (4 Replies)
Discussion started by: digioleg54
4 Replies
LEARN ABOUT MOJAVE
getopt
GETOPT(1) BSD General Commands Manual GETOPT(1)NAME
getopt -- parse command options
SYNOPSIS
args=`getopt optstring $*` ; errcode=$?; set -- $args
DESCRIPTION
The getopt utility 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(3)); 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 white space. The special option '--' is used to delimit the end of the options. The
getopt utility will place '--' in the arguments at the end of the options, or recognize it if used explicitly. The shell arguments ($1 $2
...) are reset so that each option is preceded by a '-' and in its own shell argument; each option argument is also in its own shell argu-
ment.
EXAMPLES
The following code fragment shows how one might process the arguments for a command that can take the options -a and -b, and the option -o,
which requires an argument.
args=`getopt abo: $*`
# you should not use `getopt abo: "$@"` since that would parse
# the arguments differently from what the set command below does.
if [ $? != 0 ]
then
echo 'Usage: ...'
exit 2
fi
set -- $args
# You cannot use the set command with a backquoted getopt directly,
# since the exit code from getopt would be shadowed by those of set,
# which is zero by definition.
for i
do
case "$i"
in
-a|-b)
echo flag $i set; sflags="${i#-}$sflags";
shift;;
-o)
echo oarg is "'"$2"'"; oarg="$2"; shift;
shift;;
--)
shift; break;;
esac
done
echo single-char flags: "'"$sflags"'"
echo oarg is "'"$oarg"'"
This code will accept 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
SEE ALSO sh(1), getopt(3)DIAGNOSTICS
The getopt utility prints an error message on the standard error output and exits with status > 0 when it encounters an option letter not
included in optstring.
HISTORY
Written by Henry Spencer, working from a Bell Labs manual page. Behavior believed identical to the Bell version. Example changed in FreeBSD
version 3.2 and 4.0.
BUGS
Whatever getopt(3) has.
Arguments containing white space or embedded shell metacharacters generally will not survive intact; this looks easy to fix but isn't. Peo-
ple trying to fix getopt or the example in this manpage should check the history of this file in FreeBSD.
The error message for an invalid option is identified as coming from getopt rather than from the shell procedure containing the invocation of
getopt; this again is hard to fix.
The precise best way to use the set command to set the arguments without disrupting the value(s) of shell options varies from one shell ver-
sion to another.
Each shellscript has to carry complex code to parse arguments halfway correcty (like the example presented here). A better getopt-like tool
would move much of the complexity into the tool and keep the client shell scripts simpler.
BSD April 3, 1999 BSD