Definitions for "which "
A interrogative pronoun, used both substantively and adjectively, and in direct and indirect questions, to ask for, or refer to, an individual person or thing among several of a class; as, which man is it? which woman was it? which is the house? he asked which route he should take; which is best, to live or to die? See the Note under What, pron., 1.
A relative pronoun, used esp. in referring to an antecedent noun or clause, but sometimes with reference to what is specified or implied in a sentence, or to a following noun or clause (generally involving a reference, however, to something which has preceded). It is used in all numbers and genders, and was formerly used of persons.
A compound relative or indefinite pronoun, standing for any one which, whichever, that which, those which, the . . . which, and the like; as, take which you will.
Which is a utility that prints out the full path of the executables that bash would execute when the passed program names would have been entered on the shell prompt. It does this by using the exact same algorithm as bash. Tildes and a dot in the PATH are now expanded to the full path by default. Options allow to rather print "~/*" or ".
This command tells a user which lists they have subscribed to. This command may be made made private so only list members can use it.
which locate a command; display its pathname or alias
Keywords:  compliment, you've
a compliment, if you've seen it
Keywords:  sort, kind
Of what sort or kind; what; what a; who.
a difficulty because of the security situation
Keywords:  writing, section, naming, called
the section called “Writing and naming