Bash, ... check if a program is installed or not, using bash script
6958
How can I check if a program exists from a Bash script?
721
Check if a Bash array contains a value
106067
How can I know if a process is running?
70866
Check command success in bash
107802
How to check if Ubuntu Desktop or Server is installed?
70714
Test if operating from live session or not inside a shell script
117360
Check if the application is already installed
113500
How can I find out which package installed a particular executable?
65962
How to compare a program's version in a shell script?
28597
Checking from shell script if a directory contains files
5342
How can I check if a package is installed (no superuser privileges)?
59353
How to tell if a command executed by `exec` runs successfully or not?
70138
How can I find out what modifications a program’s installer makes?
88788
Check my find/exec command before running
14415
Open any kind of application with BASH
141443
Check if application is installed in registry
43988
find out which program pops up a command line window