On 11/25/19 4:53 PM, Greg Wooledge wrote: > On Mon, Nov 25, 2019 at 01:43:41PM -0800, Peter Benjamin wrote: >> Description: >> 'in' is a builtin command and is not listed in the man page as such. > > It's actually a keyword. It's part of the "for" and "case" syntax. > > wooledg:~$ type in > in is a shell keyword > > for NAME in WORDS; do ...; done > > case WORD in PATTERN) ... ;; esac
And, it's even listed in the manpage, if you have patience to go through every mention of the pattern '\bin\b' and filter out the plain English ones... RESERVED WORDS Reserved words are words that have a special meaning to the shell. The following words are recognized as reserved when unquoted and either the first word of a simple command (see SHELL GRAMMAR below) or the third word of a case or for command: ! case coproc do done elif else esac fi for function if in select then until while { } time [[ ]] So the OP has their wish. It is documented in a section of the manpage they did not think to check. -- Eli Schwartz Arch Linux Bug Wrangler and Trusted User
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