What is "type" command in unix?what is the functionality??

Answer Posted / srinivas panguluri

With no options, indicate how each name would be
interpreted if used as a command name. If the -t option is
used, type prints a string which is one of alias, keyword,
function, builtin, or file if name is an alias, shell
reserved word, function, builtin, or disk file,
respectively. If the name is not found, then nothing is
printed, and an exit status of false is returned. If the -p
option is used, type either returns the name of the disk
file that would be executed if name were specified as a
command name, or nothing if ``type -t name'' would not
return file. The -P option forces a PATH search for each
name, even if ``type -t name'' would not return file. If a
command is hashed, -p and -P print the hashed value, not
necessarily the file that appears first in PATH. If the -a
option is used, type prints all of the places that contain
an executable named name. This includes aliases and
functions, if and only if the -p option is not also used.
The table of hashed commands is not consulted when using -
a. The -f option suppresses shell function lookup, as with
the command builtin. type returns true if any of the
arguments are found, false if none are found.

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