02-28-2010
Help with Passing argument and testing
Hi all
First of all thanks for everyone to read by doubt.Am beginner in shell scripting
Following are my doubts
i have to pass an argument to shellscript how can i do that
second i have to test the argument and shows error when nothing is passes
third i have to match exact argument and pass to next steps.Below are the example of my script
checkpair.sh i have to pass argument either 1 or 11
but if statement should only match for 1 or 11 not anyother number
I need this help
10 More Discussions You Might Find Interesting
1. Programming
#include <stdio.h>
#include <pthread.h>
#define NUM_THREADS 4
/* function to be executed by the new thread*/
void *PrintHello(void * threadid)
{
printf("\n %3d:Hello World!\n",threadid);
pthread_exit(NULL);
}
int main(int argc, char * argv)
{
int *taskids;
int... (2 Replies)
Discussion started by: narom
2 Replies
2. Shell Programming and Scripting
i'm trying to pass a numerical argument with function xyz to print specfic lines of filename, but my 'awk' syntax is incorrect.
ie
xyx 3 (prints the 3rd line, separated by ':' of filename)
function xyz() {
arg1=$1
cat filename | awk -F: -v x=$arg1 '{print $x}'
}
any ideas? (4 Replies)
Discussion started by: prkfriryce
4 Replies
3. Shell Programming and Scripting
Hi All,
i have script like below..
echo "1) first option"
echo ""
echo "2) second option"
echo ""
echo "*) please enter the correct option"
read select
case $select in
1) echo "first option selected"
;;
2) echo "second option selected"
;;
*) echo "please enter the correct... (4 Replies)
Discussion started by: Shahul
4 Replies
4. Shell Programming and Scripting
Hi Folks
I have got to the point where I can specify the arguments but how to pass an option is still mystery to me. Example:
temp.csh a b c d
set temp1 = $argv
set temp2 = $argv
set temp3 = $argv
echo $temp1
a
echo $temp2
b
echo $temp3
c d
I WANT:
temp.csh a b c d -S 1
set temp1... (2 Replies)
Discussion started by: dixits
2 Replies
5. Shell Programming and Scripting
hi,
I want to implement some function to perform following task
if ; then
$TEXT = "Data_0"
else
$TEXT = $1
fi
if ; then
$Lines = 45
else
$Lines = $2
fi
Kindly suggest,
thanks (11 Replies)
Discussion started by: nrjrasaxena
11 Replies
6. Shell Programming and Scripting
Hi all:
I'm trying to pass an argument to a command but it's being difficult.
#!/bin/bash
set -xv
if ; then
echo "More than 1 argument entered"
echo "Please enter a month using 3 character names, ie, Jan, Mar, Apr, Dec" && exit 1
fi
if ; then
echo "Please enter a month using... (2 Replies)
Discussion started by: raggmopp
2 Replies
7. Shell Programming and Scripting
Hi,
I have a script that is scheduled with cron and runs every night. The cron part looks like this:
00 20 * * 0,1,2,3,4,5,6 /usr/local/bin/BACKUP TBTARM HOT DELETE
My issue is with the 3rd parameter. Somewhere in the script, i want to tell the script to delete some files if the 3rd... (7 Replies)
Discussion started by: dollypee
7 Replies
8. Shell Programming and Scripting
How to pass the alphabet character as a argument in case and in if block?
ex:
c=$1
if a-z ]]
then
echo "alphabet"
case $1 in
a-z) echo "the value is a alphabet"
edit by bakunin: please use CODE-tags. We REALLY mean it. (9 Replies)
Discussion started by: Roozo
9 Replies
9. Shell Programming and Scripting
Hi
I have a script which am trying to pass an argument which am trying to call using $1 but its not taking the value inside the if loop as it showing the error as if: Empty if..
Any help on this will be helpful.
#!/usr/bin/csh
echo $1
if ('$1' == "pp")
then
echo "Printing $1"
endif (4 Replies)
Discussion started by: rogerben
4 Replies
10. UNIX for Beginners Questions & Answers
I am trying to pass a second argument like so:
if ] then
export ARG2=$2
else
message "Second argument not specified: USAGE - $PROGRAM_NAME ARG1 ARG2"
checkerror -e 2 -m "Please specify if it is a history or weekly (H or W) extract in the 2nd argument"
fi
however, it always goes... (4 Replies)
Discussion started by: MIA651
4 Replies
LEARN ABOUT LINUX
npm-run-script
NPM-RUN-SCRIPT(1) NPM-RUN-SCRIPT(1)
NAME
npm-run-script - Run arbitrary package scripts
SYNOPSIS
npm run-script <command> [--silent] [-- <args>...]
alias: npm run
DESCRIPTION
This runs an arbitrary command from a package's "scripts" object. If no "command" is provided, it will list the available scripts.
run[-script] is used by the test, start, restart, and stop commands, but can be called directly, as well. When the scripts in the package
are printed out, they're separated into lifecycle (test, start, restart) and directly-run scripts.
As of ` https://blog.npmjs.org/post/98131109725/npm-2-0-0, you can use custom arguments when executing scripts. The special option -- is
used by getopt https://goo.gl/KxMmtG to delimit the end of the options. npm will pass all the arguments after the -- directly to your
script:
npm run test -- --grep="pattern"
The arguments will only be passed to the script specified after npm run and not to any pre or post script.
The env script is a special built-in command that can be used to list environment variables that will be available to the script at run-
time. If an "env" command is defined in your package, it will take precedence over the built-in.
In addition to the shell's pre-existing PATH, npm run adds node_modules/.bin to the PATH provided to scripts. Any binaries provided by
locally-installed dependencies can be used without the node_modules/.bin prefix. For example, if there is a devDependency on tap in your
package, you should write:
"scripts": {"test": "tap test/*.js"}
instead of
"scripts": {"test": "node_modules/.bin/tap test/*.js"}
to run your tests.
The actual shell your script is run within is platform dependent. By default, on Unix-like systems it is the /bin/sh command, on Windows it
is the cmd.exe. The actual shell referred to by /bin/sh also depends on the system. As of `
https://github.com/npm/npm/releases/tag/v5.1.0 you can customize the shell with the script-shell configuration.
Scripts are run from the root of the module, regardless of what your current working directory is when you call npm run. If you want your
script to use different behavior based on what subdirectory you're in, you can use the INIT_CWD environment variable, which holds the full
path you were in when you ran npm run.
npm run sets the NODE environment variable to the node executable with which npm is executed. Also, if the --scripts-prepend-node-path is
passed, the directory within which node resides is added to the PATH. If --scripts-prepend-node-path=auto is passed (which has been the
default in npm v3), this is only performed when that node executable is not found in the PATH.
If you try to run a script without having a node_modules directory and it fails, you will be given a warning to run npm install, just in
case you've forgotten.
You can use the --silent flag to prevent showing npm ERR! output on error.
You can use the --if-present flag to avoid exiting with a non-zero exit code when the script is undefined. This lets you run potentially
undefined scripts without breaking the execution chain.
SEE ALSO
o npm help 7 scripts
o npm help test
o npm help start
o npm help restart
o npm help stop
o npm help 7 config
January 2019 NPM-RUN-SCRIPT(1)