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How to run a shell script on a Unix console or Mac terminal?
...
To run a non-executable sh script, use:
sh myscript
To run a non-executable bash script, use:
bash myscript
To start an executable (which is any file with executable permission); you just specify it by its path:
/foo/bar
/bin/bar
./bar
To make...
Easiest way to check for an index or a key in an array?
...r this SO question: How to tell if a string is not defined in a bash shell script?
A wrapper function:
exists(){
if [ "$2" != in ]; then
echo "Incorrect usage."
echo "Correct usage: exists {key} in {array}"
return
fi
eval '[ ${'$3'[$1]+muahaha} ]'
}
For example
if ! ex...
How to pass all arguments passed to my bash script to a function of mine? [duplicate]
...that will handle the logic related to analyzing the arguments passed to my script.
7 Answers
...
Why does running the Flask dev server run itself twice?
...n you call app.run().
See the restart_with_reloader() function code; your script is run again with subprocess.call().
If you set use_reloader to False you'll see the behaviour go away, but then you also lose the reloading functionality:
app.run(port=4004, debug=config.DEBUG, host='0.0.0.0', use_r...
How to have the cp command create any necessary folders for copying a file to a destination [duplica
... you can do is to run mkdir -p before copying the file
I made a very cool script you can use to copy files in locations that doesn't exist
#!/bin/bash
if [ ! -d "$2" ]; then
mkdir -p "$2"
fi
cp -R "$1" "$2"
Now just save it, give it permissions and run it using
./cp-improved SOURCE DEST
I...
Inspect attached event handlers for any DOM element
...ler"> can be retrieved trivially from the element.onclick property from script or in-debugger.
Event handlers attached using DOM Level 2 Events addEventListener methods and IE's attachEvent cannot currently be retrieved from script at all. DOM Level 3 once proposed element.eventListenerList to g...
Regex for quoted string with escaping quotes
...';
var m = s.match(/"(?:[^"\\]|\\.)*"/);
if (m != null)
alert(m);
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How to access parent scope from within a custom directive *with own scope* in AngularJS?
...set="utf-8" />
<title>AngularJS Plunker</title>
<script>document.write('<base href="' + document.location + '" />');</script>
<link rel="stylesheet" href="style.css" />
<script data-require="angular.js@1.3.x" src="https://code.angularjs.org/1...
Drop all the tables, stored procedures, triggers, constraints and all the dependencies in one sql st
...
this script cleans all views, SPS, functions PKs, FKs and tables.
/* Drop all non-system stored procs */
DECLARE @name VARCHAR(128)
DECLARE @SQL VARCHAR(254)
SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] = 'P'...
How can I output leading zeros in Ruby?
I'm outputting a set of numbered files from a Ruby script. The numbers come from incrementing a counter, but to make them sort nicely in the directory, I'd like to use leading zeros in the filenames. In other words
...