What is the best method to test if a program exists for a shell script?
2320
Why not use "which"? What to use then?
20082
Does the shebang determine the shell which runs the script?
100609
How can I find and run an application that's already installed?
86475
Powershell and checking for Site existence
23662
How do I find out command line arguments of a running program?
46239
Test if there are files matching a pattern in order to execute a script
67400
Test or check if sheet exists
15040
How to run find -exec?
836
How to check if there exists a process with a given pid in Python?
104446
Find location of sourced shell script
157559
In a Bash if condition, how to check whether any files matching a simple wildcard expression exist?
50022
Different ways to execute a shell script
103354
How do I test if an item is in a bash array?
91340
Testing if a variable is empty in a shell script
45470
How do I get the version of an application from the command line?
111721
How to check if gcc has failed, returned a warning, or succeeded in Bash?
35245
How do I check if file exists in jQuery or pure JavaScript?