06-07-2011
$1 stays set after sourcing shell script.
ok, so I have a shell script that can be called using the first argument ($1) or not. This argument is a word (Tim for example) and not an actual flag (-x for example). If I call the script with an argument and call the same script without one, it believes that I provided an argument. Note here that I am sourcing this script (. ./scriptname.sh [argument]). I thought checking to see if $1 was non-zero (-n) was good logic, but apparently it isn't. Is there some way to unset $1? Any an all responses would be greatly appreciated. I was told to try using $OPTARG, but doesn't this require an actual flag? A code sample would be great if someone knows how to use it without one.
This script is being ran under ksh, in case anyone was wondering.
9 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi All
How can I set password in linux.It is OK if it display password in plain text in script.
manually i can set:
#passwd
Changing password for root
Enter new password:
Bad password: too weak.
Re-enter new password:
Password changed.
#
I want this to be done by script.Please let me... (2 Replies)
Discussion started by: tannu
2 Replies
2. UNIX for Dummies Questions & Answers
I have a script "abc.sh" in /tmp which has exit 0 as its last line
when I run this script from /tmp/xyz/def.sh script as
. ../abc.sh
then the script executes but the control doesn't return to def.sh script for subsequent commands in def.sh
but if I invoke the abc.sh from inside the... (3 Replies)
Discussion started by: rakeshou
3 Replies
3. Shell Programming and Scripting
Hi All,
I've searched through the forum for a solution to this problem, but I haven't found anything. I have 2 script files that are in different directories.
My first script, let's call it "/one/two/a.sh" looks like this:
#!/bin/sh
IN_DIR=`dirname $0`
CUR_DIR=`pwd`
cd $IN_DIR... (4 Replies)
Discussion started by: mrbluegreen
4 Replies
4. Shell Programming and Scripting
I am running on AIX 5.3. I have a remote AIX server running on a generator. Many times the generator goes out and I only have a window of 15 mins with the network up and 30 mins the server is powered. I need help creating a script using ifconfig, where it goes out and checks the network every 5... (2 Replies)
Discussion started by: AIX25
2 Replies
5. Shell Programming and Scripting
Hi ,
I am new to shell scripting. i have a requirement say i will receive a file in a directory say /xyz.if that file stays in that directory more than 30 min i need to get a mail to my outlook.this should run for every 20 min in crontab.
can anyone help me? (8 Replies)
Discussion started by: muraliinfy04
8 Replies
6. Shell Programming and Scripting
My manager required that i keep the hostnames and username and password in a separate file when creating my sftp script.
(Don't mention passwords and sftp...I've talk to him about this several times)
I have a list of hostnames that have to be read in a loop in my main script.
I don't know... (3 Replies)
Discussion started by: MJCreations
3 Replies
7. Shell Programming and Scripting
I have tried with the following:
csh -c 'source ~/.cshrc; exec bash' # works perfectly
(cat ~/.cshrc; echo exec bash) | csh # not working
And, using sed, I successfully retrieved the environment variables from ~/.cshrc
sed -rn 's/setenv\s+(\S+)\s+(.*)$/export \1=\2/p' ~/.cshrc
but now... (6 Replies)
Discussion started by: royalibrahim
6 Replies
8. Shell Programming and Scripting
Hi,
I am looking for a shell script which serves the below purpose.
Please find below the algorithm for the same and any help on this would be highly appreciated.
1)set of strings need to be replaced among set of files(directory may contain different types of files)
2)It should search for... (10 Replies)
Discussion started by: Amulya
10 Replies
9. UNIX for Advanced & Expert Users
#! /bin/ksh
#first.sh
echo "b4 set exit as return"
alias exit=return
echo "call second"
. ./second.sh
echo "after second"
#. ./third.sh
unalias exit
echo "ho lanciato il terzo"
=================//
#second.sh
echo "in scond"
exit
==============//
the above code works in k... (2 Replies)
Discussion started by: mprakasheee
2 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)