03-22-2011
The "getopts" command assumes that you will be using standard unix command line syntax (like in your post #1).
What Operating System and version do you have?
What Shell are you using?
When you go the error message, what was in your shell script and what did you type to invoke the script?
Quote:
also please let me know what does 'abc' in 'while getopts abc opt' means...
The "abc" is the list of possible options (-a, -b , -c). The command line is parsed and each value is placed in turn into the environment variable $opt. If you supply three options on the command line the while loop executes three times (once for each option).
There is an extensive expanation in "man getopts".
The rest of you post means nothing to me.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Dear forum
I have the following small script:
#!/bin/ksh
echo -e "abba-o" | awk -F '-' '{ print $2 }' | cut -b 1It needs to be ksh.. in bash I don't have this problem.
If I run this on opensuse 10.2 I get this as output: e
If I run this on suse enterprise 10 sp2 then I get this: o
... (1 Reply)
Discussion started by: gemtry
1 Replies
2. Homework & Coursework Questions
I have no idea what the following means. The teacher is too advanced for me to understand fully. We literally went from running a few commands over the last few months to starting shell scripting. I am not a programmer, I am more hardware oriented. I wish I knew what this question was asking... (3 Replies)
Discussion started by: Wookard
3 Replies
3. Shell Programming and Scripting
Does anybody know how to Accept a “userid” as a command line argument on a Unix Bourne Shell Script?
The output should be something like this:
User userid has a home directory of /path/directory
the default shell for this user is /path/shell (1 Reply)
Discussion started by: ajaira
1 Replies
4. UNIX for Advanced & Expert Users
Does anybody know how to Accept a “userid” as a command line argument on a Unix Bourne Shell Script?
The output should be something like this:
User userid has a home directory of /path/directory
the default shell for this user is /path/shell (1 Reply)
Discussion started by: ajaira
1 Replies
5. UNIX for Dummies Questions & Answers
Does anybody know how to Accept a “userid” as a command line argument on a Unix Bourne Shell Script?
The output should be something like this:
User userid has a home directory of /path/directory
the default shell for this user is /path/shell (5 Replies)
Discussion started by: ajaira
5 Replies
6. Shell Programming and Scripting
Hello All,
i am known to the limitation of different shells while passing more than 9 command line arguments
i just tried the example below
i do see my current shell is tcsh
echo $SHELL
/bin/tcsh
so if i make my script executable and run it
output is
... (6 Replies)
Discussion started by: Deepak Dutt
6 Replies
7. Programming
hi,
I am new in the shell script, and c programming with linux. I am looking to pass the arguments in c program that should be executed by the shell script.
e.g.
#include <stdio.h>
#include <stdlib.h>
int main(int argc, char *argv)
{ int i;
for (i=1;i<argc; i++)
{
... (2 Replies)
Discussion started by: sharlin
2 Replies
8. UNIX for Dummies Questions & Answers
Hi guys,
I am having trouble with this script. What i want it to do is to iterate all command line arguments in reverse order. The code below does this fine but i need the output to print the words on separate lines instead of one line:
#!/bin/bash
#Takes in the arguments and displays them... (7 Replies)
Discussion started by: pipeline2012
7 Replies
9. Shell Programming and Scripting
]I have a string like "/abc/cmind/def/pq/IC.2.4.6_main.64b/lnx86" and this string is given by user. But in this string instead of 64b user may passed 32 b an i need to parse this string and check wether its is 32b or 64 b and according to it i want to set appropriate flags.
How will i do this... (11 Replies)
Discussion started by: codecatcher
11 Replies
10. Programming
Hi
Am pretty new to C..
Am trying to pass the arguments from command line and use them in switch case statement..
i have tried the following
#include <stdlib.h>
main(int argc, char* argv)
{
int num=0;
if ( argc == 2 )
num = argv;
printf("%d is the num value",num);
switch ( num )
... (2 Replies)
Discussion started by: Priya Amaresh
2 Replies
LEARN ABOUT MOJAVE
jrunscript
jrunscript(1) General Commands Manual jrunscript(1)
NAME
jrunscript - command line script shell
SYNOPSIS
jrunscript [ options ] [ arguments... ]
PARAMETERS
options
Options, if used, should follow immediately after the command name.
arguments
Arguments, if used, should follow immediately after options or command name.
DESCRIPTION
jrunscript is a command line script shell. jrunscript supports both an interactive (read-eval-print) mode and a batch (-f option) mode of
script execution. This is a scripting language independent shell. By default, JavaScript is the language used, but the -l option can be
used to specify a different language. Through Java to scripting language communication, jrunscript supports "exploratory programming"
style.
NOTE: This tool is experimental and may not be available in future versions of the JDK.
OPTIONS
-classpath path
Specify where to find the user's .class files that are accessed by the script.
-cp path
This is a synonym for -classpath path
-Dname=value
Set a Java system property.
-Jflag
Pass flag directly to the Java virtual machine on which jrunscript is run.
-l language
Use the specified scripting language. By default, JavaScript is used. Note that to use other scripting languages, you also need to spec-
ify the corresponding script engine's jar file using -cp or -classpath option.
-e script
Evaluate the given script. This option can be used to run "one liner" scripts specified completely on the command line.
-encoding encoding
Specify the character encoding used while reading script files.
-f script-file
Evaluate the given script file (batch mode).
-f -
Read and evaluate a script from standard input (interactive mode).
-help
Output help message and exit.
-?
Output help message and exit.
-q
List all script engines available and exit.
ARGUMENTS
If [arguments...] are present and if no -e or -f option is used, then the first argument is the script file and the rest of the arguments,
if any, are passed as script arguments. If [arguments..] and -e or -f option are used, then all [arguments..] are passed as script argu-
ments. If [arguments..], -e and -f are missing, interactive mode is used. Script arguments are available to a script in an engine variable
named "arguments" of type String array.
EXAMPLES
Executing inline scripts
jrunscript -e "print('hello world')"
jrunscript -e "cat('http://java.sun.com')"
Use specified language and evaluate given script file
jrunscript -l js -f test.js
Interactive mode
jrunscript
js>print('hello world');
hello world
js>34 + 55
89
js> thread(function() { print('hello world'); }
hello world
js>
Run script file with script arguments
jrunscript test.js arg1 arg2 arg3
test.js is script file to execute and arg1, arg2 and arg3 are passed to script as script arguments. Script can access these using "argu-
ments" array.
SEE ALSO
If JavaScript is used, then before evaluating any user defined script, jrunscript initializes certain built-in functions and objects. These
JavaScript built-ins are documented in jsdocs.
06 Aug 2006 jrunscript(1)