The Biggest Shell Programs in the World

This post lists some of the largest and most substantial shell programs, focusing on hand-written scripts that use data structures and algorithms, and those exceeding 5,000 lines of code. Examples include ble.sh, a sophisticated Bash Line Editor with 61K lines of code; testssl.sh, a single-file script with 21K lines; Simplenetes, Kubernetes in 17K lines of shell; powerlevel10k, a Zsh theme with 12K lines of code; and many others. These scripts demonstrate advanced programming techniques and complexity within shell scripting.