Arguments for bash script interfaceChristian Margreitter
In order to use nvm, node, and npm like normal, you can instead specify the special BASH_ENV variable, which bash sources when invoked non-interactively.# Use bash for the shell SHELL ["/bin/bash", "-o", "pipefail", "-c"] # Create a script file sourced by both interactive and ...
while getopts ":p:d" opt; do case $opt in p) platform $OPTARG;; d) device;; /?) help;exit 1 ;; :) echo "Option -$OPTARG requires an argument.";exit 1 ;; *) echo "Invalid option: -$OPTARG";exit 1 ;; esac done } function platform(){ if ["$1" == "android"] || ["...
Here, the“-n”option is used to check if the input argument is not empty and if the input argument is not empty, the script will display a success message. Otherwise, the script will display an error message and exit with a status code of 1, below I have provided and input argument ...
echo "First Argument:" $1 echo "Tenth Argument:" ${!#} The script now uses $1 for the first variable, because $0 prints out the command./script.shas its first argument. The{!#}variable, the last argument passed to the script, combines the argument count withindirection, which enables...
These variables form the foundation for more advanced techniques in argument processing. Let’s take a look at the different ways to process the arguments passed to a Bash script inside the script. 2.2. Positional Parameters Arguments passed to a script are processed in the same order in which...
Create a file named “command_line.sh” and add the following script. Two argument values read by the following script and prints the total number of arguments and the argument values as output. #!/bin/bash echo "Total arguments : $#" echo "1st Argument = $1" echo "2nd argument = $...
1. Using your favorite text editor, create a shell script calledsyntax. If you're using Vim, run the following line in the terminal: vim syntax.sh 2. Add the code below to the shell script: # syntax.sh# Declaring functions using the reserved word function# Multilinefunctionf1 {echoHello...
#!/usr/bin/bash # example.sh fn() { echo "My function first argument is ${1}"; } echo "My script first argument is ${1}" fn ${2} # Example output [me@linux ~]$ ./example.sh A B My script first argument is A My function first argument is B By using parameter expansions...
[-V <new_var_string>] -C -F Where: <input_file> is the shell script you want to obfuscate <output_file> is where you want to save the obfuscated script <new_var_string> is an optional argument that defines what all variables will be changed to. The default is 'a', which means ...