Linux

#!/bin/bash deploy=false uglify=false while (( $# > 1 )); do case $1 in --deploy) deploy="$2";; --uglify) uglify="$2";; *) break; esac; shift 2 done $deploy && echo "will deploy... deploy = …

$ cat hello.sh #!/bin/bash echo "Hello World" $ bash -x hello.sh + echo Hello World Hello World The -x argument enables you to walk through each line in the script. …

help <command> This will display the Bash help (manual) page for the specified built-in. For example, help unset will show: unset: unset [-f] [-v] [-n] [name ...] Unset values and …

Quoting is important for string expansion in bash. With these, you can control how the bash parses and expandsyour strings. There are two types of quoting: Weak: uses double quotes: …

The following will prompt a user for input, and then store that input as a string (text) in a variable. The variable isthen used to give a message to the …

Create a new file called hello.sh with the following content and give it executable permissions with chmod +xhello.sh. Execute/Run via: ./hello.sh #!/usr/bin/env bash # Note that spaces cannot be used …

Interactive Shell The Bash shell is commonly used interactively: It lets you enter and edit commands, then executes them whenyou press the Return key. Many Unix-based and Unix-like operating systems …