P4EDITOR

The editor invoked by those Perforce commands that use forms.

Usage Notes

Used by Client?	Used by Server?	Command-Line Alternative	Can be set in P4CONFIG file?
Yes	No	None	Yes

Operating System	Value
UNIX and OS X	If `EDITOR` is set to any value, then the value of `EDITOR`; otherwise, `vi`.
Windows	If `SHELL` is set to any value, then `vi`; otherwise, `notepad`.
VMS	If `POSIX$SHELL` is set, then `vi`; otherwise, `edit`.
Mac	If `EDITOR_SIGNATURE` is set, then the program with that four-character creator; otherwise, `SimpleText`.

/usr/bin/vi

emacs

/usr/bin/vi

The regular Perforce commands that use forms (and therefore, use this variable), are p4 branch, p4 change, p4 client, p4 job, p4 label, p4 submit, and p4 user.

The superuser commands that use forms are p4 depot, p4 group, p4 jobspec, p4 protect, p4 triggers, and p4 typemap.