dotkb

Bash

Notes related to the bash shell and scripting.

Add directory to $PATH if it doesn't exist
Check if a file ends with newline
Check if a variable is set
Check network connectivity
Cleanup a script on exit using trap
Default and alternative command
Provide an alternative command if the preferred command is not available.
Elevate script to sudo
Environment variable defaults
Log script output to file and console
Parallel
Run commands in parallel
Safe Scripts (Strict Mode)
Script dir and path
Get the directory and path of a script.