Lib.rs

This project aims to create a POSIX-compliant shell, as specified in: https://pubs.opengroup.org/onlinepubs/9799919799/utilities/contents.html

This section explains well the order of command execution as well as builtin command names. Unspecified utilities may or may not be implemented. https://pubs.opengroup.org/onlinepubs/9799919799/utilities/V3_chap02.html#tag_19_09_01_04

Special Built-In Utilities

• break
• colon
• continue
• dot
• eval
• exec
• exit
• export
• readonly
• return
• set
• shift
• times
• trap
• unset

Built-In Utilities

• alias
• bg
• cd
• command
• echo
• false
• fc
• fg
• getopts
• hash
• jobs
• kill
• printf
• pwd
• read
• test
• true
• type
• ulimit
• umask
• unalias
• wait