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.
NAME jpeginfo – prints information and tests integrity of JPEG/JFIF files. SYNOPSIS jpeginfo [ options ] [ filenames ] DESCRIPTION jpeginfo is used to generate informative listings of jpeg files, and also to check jpeg files for errors. Program also supports automatic deletion of broken jpegs. OPTIONS Options may be either the traditional POSIX one…
NAME jpegicc – little cms ICC profile applier for JPEG. SYNOPSIS jpegicc [options] input.jpg output.jpg DESCRIPTION lcms is a standalone CMM engine, which deals with the color management. It implements a fast transformation between ICC profiles. jpegicc is little cms ICC profile applier for JPEG. OPTIONS -b Black point compensation. -c <0,1,2,3> Precalculates transform. (0=Off,…
NAME jpegexiforient – reads or writes the Exif Orientation Tag SYNOPSIS jpegexiforient [switches] jpegfile DESCRIPTION This is a utility program to get and set the Exif Orientation Tag. It can be used together with jpegtran in scripts for automatic orientation correction of digital camera pictures. The Exif orientation value gives the orientation of the camera…
NAME jpeg_extract – jpeg extractor SYNOPSIS jpeg_extract <filename> DESCRIPTION jpeg_extractor is used by fiwalk, provided by TSK (The Sleuth Kit) to manipulate JPG files. AUTHOR The Sleuth Kit was written by Brian Carrier <carrier [at] sleuthkit.org>. This manual page was written by Joao Eriberto Mota Filho <eriberto [at] debian.org> for the Debian project (but may…
NAME jpeg2yuv – Convert jpeg images to the yuv format. SYNOPSIS jpeg2yuv [-b num] [-f num] [-I num] [-A ratio] [-L num] [-n num] [-l num] [-j filename] DESCRIPTION jpeg2yuv decompresses a sequence of JPEG files and pipes the image data to stdout as a YUV4MPEG2 stream. Any JPEG format supported by libjpeg can be…
NAME jpeg2ktopam – convert JPEG-2000 code stream to PAM/PNM SYNOPSIS jpeg2ktopam [-verbose] [-debuglevel=number] filename OPTION USAGE Minimum unique abbreviation of option is acceptable. You may use double hyphens instead of single hyphen to denote options. You may use white space in place of the equals sign to separate an option name from its value. DESCRIPTION…
NAME jove – an interactive display-oriented text editor SYNOPSIS jove [ -d directory ] [ -l libdir ] [ -s sharedir ] [ -ls bothdir ] [ -J ] [ -j ] [ -wn ] [ -t tag ] [ +n file ] [ +/pattern file ] [ -p file ] [ file… ] jove -r DESCRIPTION JOVE is Jonathan’s Own…
NAME journalctl – Query the systemd journal SYNOPSIS journalctl [OPTIONS…] [MATCHES…] DESCRIPTION journalctl may be used to query the contents of the systemd(1) journal as written by systemd-journald.service(8). If called without parameters, it will show the full contents of the journal, starting with the oldest entry collected. If one or more match arguments are passed,…
NAME josm – Java OpenStreetMap Editor SYNOPSIS josm DESCRIPTION JOSM is an editor for OpenStreetMap written in Java 7. OpenStreetMap is a project aimed squarely at creating and providing free geographic data such as street maps to anyone who wants them. It allows you to view, edit and use geographical data in a collaborative way…
NAME join – join lines of two files on a common field SYNOPSIS join [,OPTION/]… ,FILE1 FILE2/ DESCRIPTION For each pair of input lines with identical join fields, write a line to standard output. The default join field is the first, delimited by blanks. When FILE1 or FILE2 (not both) is -, read standard input….
NAME join-dctrl – perform relational join on data in dctrl format SYNOPSIS join-dctrl [ options ] filename filename join-dctrl –version join-dctrl –help DESCRIPTION join-dctrl performs a relational join operation on data given to it in Debian control file format. A join field must be specified using either the switches -1 and -2 or the switch…
Name joe – Joe’s Own Editor Syntax joe [global-options] [ [local-options] filename ]… jstar [global-options] [ [local-options] filename ]… jmacs [global-options] [ [local-options] filename ]… rjoe [global-options] [ [local-options] filename ]… jpico [global-options] [ [local-options] filename ]… Description JOE is a powerful ASCII-text screen editor. It has a "mode-less" user interface which is similar to…
NAME jobstats – print historic job information or timeline view SYNOPSIS jobstats [-html] [-timeline] [-ntw] [-usage] [-available_slots s] [-start_jid jid] [-end_jid jid] [-owner opattern] [-name npatterm] [table_width w] [-nw w] [-nojoblist] [-tsort method] [file…] DESCRIPTION jobstats can show both a table of historic job information and a timeline view of job execution depending on output format (text or HTML)….
NAME bash, :, ., [, alias, bg, bind, break, builtin, caller, cd, command, compgen, complete, compopt, continue, declare, dirs, disown, echo, enable, eval, exec, exit, export, false, fc, fg, getopts, hash, help, history, jobs, kill, let, local, logout, mapfile, popd, printf, pushd, pwd, read, readonly, return, set, shift, shopt, source, suspend, test, times, trap, true,…
NAME jmtpfs – FUSE based MTP filesystem SYNOPSIS jmtpfs [OPTIONS] <mountpoint> DESCRIPTION jmtpfs is a FUSE and libmtp based filesystem for accessing MTP (Media Transfer Protocol) devices. It was specifically designed for exchanging files between Linux systems and newer Android devices that support MTP but not USB Mass Storage. This manual page documents briefly the…
NAME jmap – Prints shared object memory maps or heap memory details for a process, core file, or remote debug server. This command is experimental and unsupported. SYNOPSIS jmap [ options ] pid jmap [ options ] executable core jmap [ options ] [ pid ] server-id@ ] remote-hostname-or-IP options The command-line options. See Options….
Name jmap – Memory Map SYNOPSIS jmap[option] pid jmap[option] executable core jmap[option][server – id @] remote – hostname – or -IP PARAMETERS option Options are mutually exclusive. Option, if used, should follow immediately after the command name. pid process id for which the memory map is to be printed. The process must be a Java…
jmap – Prints shared object memory maps or heap memory details for a process, core file, or remote debug server. This command is experimental and unsupported. Synopsis jmap [ options ] pid jmap [ options ] executable core jmap [ options ] [ pid ] server-id@ ] remote-hostname-or-IP options The command-line options. See Options. pid…
jmap – Prints shared object memory maps or heap memory details for a process, core file, or remote debug server. This command is experimental and unsupported. Synopsis jmap [ options ] pid jmap [ options ] executable core jmap [ options ] [ pid ] server-id@ ] remote-hostname-or-IP options The command-line options. See Options. pid…
jmap – Prints shared object memory maps or heap memory details for a process, core file, or remote debug server. This command is experimental and unsupported. Synopsis jmap [ options ] pid jmap [ options ] executable core jmap [ options ] [ pid ] server-id@ ] remote-hostname-or-IP options The command-line options. See Options. pid…