DragonFly On-Line Manual Pages

urxvt(1)                         RXVT-UNICODE                         urxvt(1)

NAME
       urxvtd - urxvt terminal daemon

SYNOPSIS
       urxvtd [-q|--quiet] [-o|--opendisplay] [-f|--fork] [-m|--mlock]
       [-e|--eval perlstring]

       urxvtd -q -o -f    # for .xsession use

DESCRIPTION
       This manpage describes the urxvtd daemon, which is the same vt102
       terminal emulator as urxvt, but runs as a daemon that can open multiple
       terminal windows within the same process.

       You can run it from your X startup scripts, for example, although it is
       not dependent on a working DISPLAY and, in fact, can open windows on
       multiple X displays on the same time.

       Advantages of running a urxvt daemon include faster creation time for
       terminal windows and a lot of saved memory.

       The disadvantage is a possible impact on stability - if the main
       program crashes, all processes in the terminal windows are terminated.
       For example, as there is no way to cleanly react to abnormal connection
       closes, "xkill" and server resets/restarts will kill the urxvtd
       instance including all windows it has opened.

OPTIONS
       urxvtd currently understands a few options only. Bundling of options is
       not yet supported.

       -q, --quiet
           Normally, urxvtd outputs the message "rxvt-unicode daemon listening
           on <path>" after binding to its control socket. This option will
           suppress this message (errors and warnings will still be logged).

       -o, --opendisplay
           This forces urxvtd to open a connection to the current $DISPLAY and
           keep it open.

           This is useful if you want to bind an instance of urxvtd to the
           lifetime of a specific display/server. If the server does a reset,
           urxvtd will be killed automatically.

       -f, --fork
           This makes urxvtd fork after it has bound itself to its control
           socket.

       -m, --mlock
           This makes urxvtd call mlockall(2) on itself. This locks urxvtd in
           RAM and prevents it from being swapped out to disk, at the cost of
           consuming a lot more memory on most operating systems.

           Note: In order to use this feature, your system administrator must
           have set your user's RLIMIT_MEMLOCK to a size greater than or equal
           to the size of the urxvtd binary (or to unlimited). See
           /etc/security/limits.conf.

           Note 2: There is a known bug in glibc (possibly fixed in 2.8 and
           later versions) where calloc returns non-zeroed memory when
           mlockall is in effect. If you experience crashes or other odd
           behaviour while using --mlock, try it without it.

       -e, --eval perlstring
           Evaluate the given perl code after basic initialisation (requires
           perl support to be enabled when compiling urxvtd).

           This can be used for example to configure the internal perl
           interpreter, which is shared between all terminal instances, or
           create additional listening sockets for additional protocols.

           The code is currently executed before creating the normal listening
           sockets: this might change in future versions.

EXAMPLES
       This is a useful invocation of urxvtd in a .xsession-style script:

          urxvtd -q -f -o

       This waits till the control socket is available, opens the current
       display and forks into the background. When you log-out, the server is
       reset and urxvtd is killed.

ENVIRONMENT
       RXVT_SOCKET
           Both urxvtc and urxvtd use the environment variable RXVT_SOCKET to
           create a listening socket and to contact the urxvtd, respectively.
           If the variable is missing then $HOME/.urxvt/urxvtd-<nodename> is
           used.

       DISPLAY
           Only used when the "--opendisplay" option is specified. Must
           contain a valid X display name.

SEE ALSO
       urxvt(7), urxvtc(1)

9.22                              2016-01-23                          urxvt(1)