rlog

Display RCS file revision history

TLDR

Show file history

$ rlog [file.c]

Show specific revision

$ rlog -r[1.5] [file.c]

Show revision range

$ rlog -r[1.1:1.5] [file.c]

Show by date

$ rlog -d"[>2024-01-01]" [file.c]

Show header only

$ rlog -h [file.c]

Show states

$ rlog -s[Exp] [file.c]

Show by author

$ rlog -w[username] [file.c]

SYNOPSIS

rlog [-r revisions] [-d dates] [-h] [options] files

rlog prints information about RCS files. Without options, rlog prints the complete log: header information (RCS file name, working file, head revision, default branch, access list, locks, symbolic names, comment leader, total revisions) followed by entries for each revision (number, date, author, state, number of lines added/deleted, and log message).Options -d, -l, -s, and -w select revisions by their intersection, while -b and -r select by their union. Only revisions matching all specified criteria are printed.

PARAMETERS

-r REV

Specific revision(s).

-d DATE

Date selection.

-h

Header only.

-t

Header and description.

-s STATE

By state.

-w AUTHOR

By author.

-b

Default branch only.

-R

Print RCS file name only.

-N

Do not print symbolic names.

-L

Ignore RCS files with no locks set.

-l

Locked revisions only.

-V

Print RCS version number.

-z zone

Specify date output format and default time zone.

CAVEATS

RCS is largely superseded by Git. File-level versioning only. Less common in modern development.

HISTORY

rlog is part of RCS (Revision Control System), created by Walter Tichy at Purdue in the 1980s. RCS was one of the first version control systems.