More advanced if usage
Comparing Strings in Bash: A hands-on Tutorial – TecAdmin
Bash script: String comparison examples - Linux Tutorials - Learn Linux Configuration
How to Check if a String Contains a Substring in Bash | Linuxize
How to Compare Numbers and Strings in Linux Shell Script
How to Tell If a Bash String Contains a Substring on Linux
Bash Compare Strings - Learn Easy Comparisons in Using Bash!
Bash Shell Script To Check String Length
How to check if a string is empty in Bash - DEV Community
bash - check if an input string is a directory / file or nothing - YouTube
Bash Compare Strings - Learn Easy Comparisons in Using Bash!
How to Find Length of String in Bash Script? - GeeksforGeeks
How to check if bash variable defined in script - nixCraft
Check if a String Contains a Substring in Bash - ByteXD
Bash String Comparison {How-to Guide} | phoenixNAP KB
Bash Compare Strings - ByteXD
String Manipulation in Shell Scripting - GeeksforGeeks
The Complete How To Guide of Bash Functions
Bash Replace a String With Another String In All Files using sed - nixCraft
