Learn the most efficient methods to check if a string contains a substring in Bash. Compare built-in operators, case statements, grep, and regex approaches with performance benchmarks and best practices.
Learn multiple methods to split strings on delimiters in Bash including IFS, tr command, parameter expansion, and arrays. Complete guide with examples and best practices for efficient string manipulation.
Learn the essential differences between sh and bash shells for better scripting decisions. Understand compatibility, features, and when to use each shell.