The Linux Manuals (man pages) document is an important part of Linux documents. Linux Manuals are organized as several sections. Each section has a group of commands for a specific area in Linux usage, administration or development.
dchroot – enter a chroot environment Synopsisdchroot [-h|–help | -V|–version | -l|–list | -i|–info | –config | –location] [–directory=directory] [-d|–preserve-environment] [-q|–quiet | -v|–verbose] [-c chroot|–chroot=chroot | –all] [COMMAND [ ARG1 [ ARG2 [ ARGn]]]] Descriptiondchroot allows the user to run a command or a login shell in a chroot environment. If no command is specified,…
dcfldd – manual page for dcfldd (dcfldd) 1.3.4 Synopsisdcfldd [OPTION]… DescriptionCopy a file, converting and formatting according to the options. bs=BYTES force ibs=BYTES and obs=BYTES cbs=BYTES convert BYTES bytes at a time conv=KEYWORDS convert the file as per the comma separated keyword list count=BLOCKS copy only BLOCKS input blocks ibs=BYTES read BYTES bytes at a…
dccp – Copy a file from or to a dCache server. Synopsisdccp [option…] <sourceUrl> <destUrl> ArgumentsThe following arguments are required: sourceUrl The URL of the source file. destUrl The URL of the destination file.DescriptionThe dccp utility provides a cp(1) like functionality on the dCache file system. The source must be a single file while the…
dc_test – Distributed session cache testing and benchmarking tool Synopsisdc_test -connect <addr> [options] Descriptiondc_test runs a configurable number of session caching operations against a given network address using the distcache(8) protocol. This is typically to verify an installation, to help diagnose problems, and to measure latency and/or throughput. The given address could be for an…
dc_snoop – Distributed session cache traffic analysis Synopsisdc_snoop -listen <address> -server <address> [options] Descriptiondc_snoop runs as a transparent proxy supporting the distcache(8) protocol and (in theory) should work when inserted between any compliant tools. Ie. this can be used to monitor cache operation requests and responses between applications and dc_client, or between dc_client and dc_server….
dc_server – Distributed session cache server Synopsisdc_server -listen <address> [options] Descriptiondc_server runs a cache server and starts listening on a configurable network address for connections. Incoming connections are expected to communicate using the distcache(8) protocol, and would typically be instances of dc_client(1) running on other machines. Options-daemon After initialising, dc_server will detach from the parent…
dc_client – Distributed session cache client proxy Synopsisdc_client -server <address> [options] Descriptiondc_client runs a client proxy to provide access to a remote cache server (typically over TCP/IPv4) by providing a local service (typically over unix domain sockets). It starts listening on a configurable network address for connections and establishes a persistent connection to an instance…
dc3dd – convert and copy a file DescriptionAuthorWritten by Paul Rubin, David MacKenzie, Stuart Kemp, Jesse Kornblum, Andrew Medico, and Richard Cordovano. Reporting BugsReport bugs to <dc3dd [at] dc3.mil>. CopyrightCopyright © 2008 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and…
dc1394_vloopback – send format0 video to V4L vloopback device Synopsisdc1394_vloopback [–daemon] [–pipe] [–guid=camera-euid] [–video1394=/dev/video1394/x] [–vloopback=/dev/video0] [–palette=yuv422|rgb24] [–width=n] [–height=n] DescriptionSends format0 640×480 RGB to the vloopback input device so that it can be consumed by V4L applications on the vloopback output device. Options–daemon run as a daemon, detached from console (optional). –pipe write images to vloopback…
dc1394_reset_bus – resets the IEEE1394 bus Synopsisdc1394_reset_bus DescriptionFinds the 1394 bus of the first camera found and resets it OptionsThere are no command-line options for this program. BugsThis program is maintained by the DC1394 Package Mainteners’ team <libdc1394-packaging [at] lists.sourceforge.net>. The bugs related to libdc1394 and current packaging can be submitted here: http://bugs.launchpad.net/~libdc1394-dev/ For bugs…
dc1394_multiview – display format0 camera video Synopsisdc1394_multiview [–fps=[1,3,15,30]] [–res=[0,1,2]] [–device=/dev/video1394/x] DescriptionView format0-only camera video from one or more cameras. Options–fps frames per second. default is 7. The 30 fps setting is incompatible with the 640×480 RGB8 resolution setting. –res resolution. 0 is 320×240 (default), 1 = 640×480 YUV4:1:1, 2 = 640×480 RGB8 –device specifies video1394…
grab_partial_image – grab a partial image using libdc1394 Synopsisgrab_partial_image DescriptionGrab partial image from camera. Camera must be format 7 (scalable image size) compatible. The image will be stored as a Portable Grayscale map in Part.pgm. Optionsnone BugsThe filename should be a commandline argument AuthorThis manual page was written by Peter De Schrijver <p2 [at] debian.org>…
grab_gray_image – grab an image using libdc1394 Synopsisgrab_gray_image DescriptionGet one gray image using libdc1394 and store it in portable grayscale map format in Image.pgm Optionsnone BugsThe filename should be a commandline argument AuthorThis manual page was written by Peter De Schrijver <p2 [at] debian.org> for the Debian GNU/Linux system (but may be used by others)…
grab_color_image – grab an image using libdc1394 Synopsisgrab_color_image [–guid=/dev/video1394/x] [filename.ppm] DescriptionGet one image using libdc1394 and store it as a portable pix map (ppm) image. Options–guid specifies camera to use. default is the first camera found in the system. –help print help messageAuthorThis manual page was written by Peter De Schrijver <p2 [at] debian.org> for…
dc – an arbitrary precision calculator Synopsisdc [-V] [–version] [-h] [–help] [-e scriptexpression] [–expression=scriptexpression] [-f scriptfile] [–file=scriptfile] [file …] Descriptiondc is a reverse-polish desk calculator which supports unlimited precision arithmetic. It also allows you to define and call macros. Normally dc reads from the standard input; if any command arguments are given to it, they are filenames,…
dbxtool – modify the dbx revokation list Synopsisdbxtool [CMD] DescriptionThis manual page documents briefly the dbxtool command. dbxtool allows a user to operate on the UEFI dbx revokation list. This tool can be used to list the current dbx contents or update it to a newer version. OptionsThe dbxtool command takes various options depending on…
dbwrap_tool – low level TDB/CTDB manipulation tool using the dbwrap interface Synopsisdbwrap_tool [–persistent] [–non-persistent] [-d <debug level>] [-s <config file>] [-l <log file base>] [-V] [–option=<name>=<value>] {<database>} {<operation>} [<key> [<type> [<value>]]]DescriptionThis tool is part of the samba(7) suite. The dbwrap_tool program is used to read and manipulate TDB/CTDB databases using the dbwrap interface. The following database operations are available: •…
dbus-uuidgen – Utility to generate UUIDs Synopsis dbus-uuidgen [–version] [–ensure [=FILENAME]] [–get [=FILENAME]] DescriptionThe dbus-uuidgen command generates or reads a universally unique ID. Note that the D-Bus UUID has no relationship to RFC 4122 and does not generate UUIDs compatible with that spec. Many systems have a separate command for that (often called "uuidgen"). See m[blue]http://www.freedesktop.org/software/dbus/m[] for…
dbus-update-activation-environment – update environment used for D-Bus session services Synopsis dbus-update-activation-environment [–systemd] [–verbose] –all | VAR… | VAR=VAL…Descriptiondbus-update-activation-environment updates the list of environment variables used by dbus-daemon –session when it activates session services without using systemd. With the –systemd option, if an instance of systemd –user is available on D-Bus, it also updates the list…
dbus-send – Send a message to a message bus Synopsis dbus-send [–system | –session | –bus=ADDRESS | –peer=ADDRESS] [–dest=NAME] [–print-reply [=literal]] [–reply-timeout=MSEC] [–type=TYPE] OBJECT_PATH INTERFACE.MEMBER [CONTENTS…] DescriptionThe dbus-send command is used to send a message to a D-Bus message bus. See m[blue]http://www.freedesktop.org/software/dbus/m[] for more information about the big picture. There are two well-known message buses: the…