Questions tagged [shell-builtin]

Let's say if I type in cd in my shell. Is cd loaded from the memory at that moment? My intuition is that these built-in commands are pre-loaded to the system memory after the kernel has been loaded, but someone insisted that they are loaded only…

Some commands are provided as both builtins and external utilities. Take echo for example. On my machine (macOS) running Bash 3.2, $ type echo echo is a shell builtin Running man bash | less --pattern='^ *echo +\[' shows: echo [-neE] [arg…

I am using a program that takes a "command" as an argument and then adds some helpful wraping around it. Presumably in an effort to be helpful it appears to checks to make sure the command "exists". As far as I can tell this check is something like…