Sponsored Content
Full Discussion: Variable explanation
Top Forums Shell Programming and Scripting Variable explanation Post 302359347 by locutus01 on Tuesday 6th of October 2009 10:09:29 AM
Old 10-06-2009
OK, thx!

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

AWK explanation

Hi, Could anyone please explain why we have arr=1 - what does this statement do? awk -F\; 'FNR==NR{arr=1;next};$3 in arr' core.txt gmrd.txt Any help appreciated (2 Replies)
Discussion started by: penfold
2 Replies

2. Shell Programming and Scripting

tr explanation please

how does below tr command replace nonletters with newlines? I think I understand tr -cs '\n' part.. but what is A-Za-z\' <--- what is this?? tr -cs A-Za-z\' '\n' | -c --complement -s, --squeeze-repeats replace each input sequence of a repeated character that is... (0 Replies)
Discussion started by: convenientstore
0 Replies

3. Shell Programming and Scripting

tr explanation please

how does below tr command replace nonletters with newlines? I think I understand tr -cs '\n' part.. but what is A-Za-z\' <--- what is this?? tr -cs A-Za-z\' '\n' | -c --complement -s, --squeeze-repeats replace each input sequence of a repeated character that is... (1 Reply)
Discussion started by: convenientstore
1 Replies

4. UNIX and Linux Applications

need explanation

Hi am having a c pgm. It has the include files (unistd.h,sys/types.h,win.h,scr.h,curses.h,stdarg.h and color.h). I don't know the purpose of these include files. will u plz explain me. (1 Reply)
Discussion started by: Mari.kb
1 Replies

5. Shell Programming and Scripting

Need explanation of script

Hi All, Can anybody explain what this script is doing? #!/bin/sh who | cut -d " " -f1 | sort -u > userlist1 while true ; do sleep 60 who | cut -d" " -f1 | sort -u >userlist2 for username in `cat userlist1` ; do if ! grep "^$username$" userlist2 > /dev/null ; then echo... (0 Replies)
Discussion started by: vishalpatel03
0 Replies

6. UNIX for Dummies Questions & Answers

In need of explanation

Its great someone provided this script that strips out a filename and extension but can someone explain how each line works? file1='Jane Mid Doe.txt' newfile='Jane.txt' 1) ext=${file1##*.} 2) filename=${file%%.???} 3) set -- $filename 4) newfile="1.$extension" (1 Reply)
Discussion started by: Lillyt
1 Replies

7. UNIX for Dummies Questions & Answers

Explanation on egrep

Hi all I am new to egrep can someone please explain me what does the below Statement do egrep -v "^missing sales|^\ Thanks in advance Sri Please use next time code tags for your code and data (4 Replies)
Discussion started by: Sri3001
4 Replies

8. UNIX for Dummies Questions & Answers

If statement explanation

Could anyone please advise what the in the following if statement means? if ; then Thank you. (2 Replies)
Discussion started by: jimbojames
2 Replies

9. Shell Programming and Scripting

Explanation for the variable

Hi, In the script, it's declared as like that. Please explain this one. pk.flags.summaryGrep=Timing Thanks (4 Replies)
Discussion started by: bmk
4 Replies

10. Shell Programming and Scripting

Need explanation

Hi, I need more explination on it, how it works abcd="$(echo "$abcd" | sed 's/ //g')" >> ${LOGFILE} 2>&1 can any one suggest me on this? Rgds, LKR (1 Reply)
Discussion started by: lakshmanraok
1 Replies
NPM-RUN-SCRIPT(1)                                                                                                                NPM-RUN-SCRIPT(1)

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)

Featured Tech Videos

All times are GMT -4. The time now is 11:59 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy