Search file for string and store last result to variable
Hi,
I'm trying to search a text file for a string: "energy(sigma->0)=". To do so, I executed the grep command, which returned many matches, for example:
What I want to do is store the grep results to a variable (var1), then get the very last number in the very last string result (the last number in var1), and store it to a second variable (var2) for later use in bash.
Alternatively, if there is a better command than grep that can automatically return only the last search hit in a given file, that would be even better.
Any assistance would be greatly appreciated!
gwr
Last edited by Franklin52; 01-28-2011 at 03:32 AM..
Reason: Please use code tags
:)
Suppose,I have one table A. Table A have one column. Table A have 10 rows. I want this 10 rows store into shell script variable.
like
#!/bin/ksh
v_shell_var=Hi
here in call oracle , through loop How can I store table A's 10 rows into v_shell_var (Shell Script Array).
Regards,
Div (4 Replies)
Dear all,
I have a file having the following formats:
ThreadFail=Web1=1234
ThreadFail=Web2=2345
ThreadFail=Web3=12
ConnectionFail=DB1=11
ConnectionFail=DB2=22
The number of lines will be different from every time . How can I parse the file and store the result to an a array inside... (6 Replies)
Hi, guys. I have one question:
I need to search for a string in a file, and then extract another string from the file and assign it to a variable.
For example:
the contents of the file (group) is below:
...
ftp:x:23:
mail:x:34
...
testing:x:2001
sales:x:2002
development:x:2003
...... (6 Replies)
Hi,
I have a problem that I am sure someone will know the answer to. Currently I have a script which returns a binary output if it finds a certain search string (in this case relating to a DRBD cluster) as follows:
searchstring="cs:Connected st:Primary/Secondary ds:UpToDate/UpToDate"
&& echo... (3 Replies)
sorry i'm newbies c programer
how to store string to variable with value flexible.
example
int hh=1; ---> value flexible 1,2,3,4,5;
int xx=1; ---> value flexible 1,2,3,4,5;
char test="value=%d and value=%d",hh,xx; --> not working
char test2="value2=%d and value2=%d",hh,xx; --> not... (1 Reply)
In a directory i have a file *output* whose contents are changing for every simulation.
zgrep "trace file is" *output* | zgrep g
o/p: trace file is Int_01.1352176388z4f56ec33.0.trace.gz
I want to extract "Int_01.1352176388z4f56ec33.0.trace.gz" from the above result into a variable.
i... (2 Replies)
I can not figure out how to capture the $filename variable store by the bash.
#!/bin/bash
# oldest folder stored as variable for analysis, version log created, and quality indicators matched to run
dir=/home/cmccabe/Desktop/NGS/test
find "$dir" -maxdepth 1 -mindepth 1 -type d -printf... (5 Replies)
Hi,
I have a working script.
It does what I am intending it to but a bit confused whether the sed part is supposed to be working or not. Further down is the script with the sed part that should have been working but not and the grep -v part which is the workaround that I am using at the... (10 Replies)
Discussion started by: newbie_01
10 Replies
LEARN ABOUT NETBSD
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)