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 triggering is as per the below
I dont understand what the getopts parts are doing, would someone be kind enough to shed some light and point me in the right direction with how i can add some switches on command execution.
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)
#!/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)
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)
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)
Hi,
I have a perl script with two functions say func a and func b.
sub a {
-----------
---------
}
sub b {
---------
---------
}
I want to use this function on command line as we can do in shell script using getopt.
My motto here is to run the script like this
... (7 Replies)
I am working on a script that lists files in a directory with a few file attributes depending on what option the user specifies at the command prompt. The script uses Getopt::Std and takes two switches.
The first switch allows the user to specify a directory, the second switch gives a long... (3 Replies)
Hi,
I am in middle of using some getopt command and am finding some issue. The usage of my script can be like this:
abc.sh <-d | -p |-r> -online < 0 | 1>
The first argument can be either -d or -p or -r. The second argument can be either -s and a id or a file name. So I am stuck up in writing... (2 Replies)
Hi
I need to use getopt option and I have no idea what it is or how to use it.
I need to use it on this awk script:
awk -F, -v cellid="$1" -v paramval="$2" -v oldfile="$3" -v newfile="$4" '$2==cellid{$3=newvalue}1' OFS="," $3 > $4
I tried reading up on it but I just confuse... (2 Replies)
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
LEARN ABOUT DEBIAN
lib::abs
lib::abs(3pm) User Contributed Perl Documentation lib::abs(3pm)NAME
lib::abs - "lib" that makes relative path absolute to caller.
SYNOPSIS
Simple use like "use lib ...":
use lib::abs qw(./mylibs1 ../mylibs2);
use lib::abs 'mylibs';
Extended syntax (glob)
use lib::abs 'modules/*/lib';
There are also may be used helper function from lib::abs (see example/ex4):
use lib::abs;
# ...
my $path = lib::abs::path('../path/relative/to/me'); # returns absolute path
DESCRIPTION
The main reason of this library is transformate relative paths to absolute at the "BEGIN" stage, and push transformed to @INC. Relative
path basis is not the current working directory, but the location of file, where the statement is (caller file). When using common "lib",
relative paths stays relative to curernt working directory,
# For ex:
# script: /opt/scripts/my.pl
use lib::abs '../lib';
# We run `/opt/scripts/my.pl` having cwd /home/mons
# The @INC will contain '/opt/lib';
# We run `./my.pl` having cwd /opt
# The @INC will contain '/opt/lib';
# We run `../my.pl` having cwd /opt/lib
# The @INC will contain '/opt/lib';
Also this module is useful when writing tests, when you want to load strictly the module from ../lib, respecting the test file.
# t/00-test.t
use lib::abs '../lib';
Also this is useful, when you running under "mod_perl", use something like "Apache::StatINC", and your application may change working
directory. So in case of chdir "StatINC" fails to reload module if the @INC contain relative paths.
RATIONALE
Q: We already have "FindBin" and "lib", why we need this module?
A: There are several reasons:
1) "FindBin" could find path incorrectly under "mod_perl"
2) "FindBin" works relatively to executed binary instead of relatively to caller
3) Perl is linguistic language, and `use lib::abs "..."' semantically more clear and looks more beautiful than `use FindBin; use lib
"$FindBin::Bin/../lib";'
4) "FindBin" b<will> work incorrectly, if will be called not from executed binary (see <http://github.com/Mons/lib-abs-vs-findbin>
comparison for details)
BUGS
None known
COPYRIGHT & LICENSE
Copyright 2007-2010 Mons Anderson.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
AUTHOR
Mons Anderson, "<mons@cpan.org>"
CONTRIBUTORS
Oleg Kostyuk, "<cub@cpan.org>"
perl v5.10.1 2010-11-16 lib::abs(3pm)