Linux Commands Examples

A great documentation place for Linux commands

use wildcards (*,?): example, bz* will match bzless and bzmore

F

f2py - Fortran to Python interface generator
f2py2.7 - Fortran to Python interface generator
factor - factor numbers
faillog - display faillog records or set login failure limits
faked-sysv - daemon that remembers fake ownership/permissions of files manipulated by fakeroot processes.
faked-tcp - daemon that remembers fake ownership/permissions of files manipulated by fakeroot processes.
fakeroot - run a command in an environment faking root privileges for file manipulation
fakeroot-sysv - run a command in an environment faking root privileges for file manipulation
fakeroot-tcp - run a command in an environment faking root privileges for file manipulation
fallocate - preallocate space to a file
false - do nothing, unsuccessfully
fax2ps - convert a TIFF facsimile to compressed PostScript™
fax2tiff - create a TIFF Class F fax file from raw fax data
fc-cache - build font information cache files
fc-cat - read font information cache files
fc-list - list available fonts
fc-match - match available fonts
fc-pattern - parse and show pattern
fc-query - query font files
fc-scan - scan font files or directories
fdformat - low-level format a floppy disk
fdisk - manipulate disk partition table
ffado-debug - Run FFADO in debug mode
ffmpeg - ffmpeg video converter
ffplay - AVplay media player
ffprobe - avprobe media prober
ffserver - avserver video server
fgconsole - print the number of the active VT.
fgrep - , rgrep print lines matching a pattern
fiascotopnm - Convert compressed FIASCO image to PGM, or PPM
fig2dev - translates Fig code to various graphics languages
fig2mpdf - creation of multilayer pdf or eps figures from fig files using latex for typesetting
fig2ps2tex - generate a TeX file for including a PostScript file
file - determine file type
file-roller - archive manager for GNOME
filefrag - report on file fragmentation
filezilla - FTP client
filterdiff - extract or exclude diffs from a diff file
find - search for files in a directory hierarchy
find2perl - translate find command lines to Perl code
findfs - find a filesystem by label or UUID
findmnt - find a filesystem
findsmb - list info about machines that respond to SMB name queries on a subnet
firefox - a free and open source web browser from Mozilla
fitstopnm - convert a FITS file into a portable anymap
fix-qdf - repair PDF files in QDF form after editing
fixcvsdiff - fix problematic diff files
fixdlsrps - filter to fix DviLaser/PS documents to work with PSUtils
fixfmps - filter to fix Framemaker documents so PSUtils work
fixpsditps - filter to fix Transcript psdit documents so PSUtils work
fixpspps - filter to fix PSPrint PostScript so PSUtils work
fixscribeps - filter to fix Scribe documents so PSUtils work
fixtpps - filter to fix Tpscript documents to work with PSUtils
fixwfwps - filter to fix Word for Windows documents so PSUtils work
fixwpps - filter to fix WP documents so PSUtils work
fixwwps - filter to fix Windows Write documents so PSUtils work
flac - Free Lossless Audio Codec
flipdiff - exchange the order of two incremental patches
flock - manage locks from shell scripts
fmt - simple optimal text formatter
fmtutil - sys - utility for maintaining TeX format files system-wide
fmtutil-sys - utility for maintaining TeX format files system-wide
fold - wrap each input line to fit in specified width
font-manager - font management application for the GNOME desktop
font-sampler - font management application for the GNOME desktop
font2c - Write PostScript Type 0 or Type 1 font as C code
fontinst - utility to run TeX as fontinst
fonttosfnt - Wrap a bitmap font in a sfnt (TrueType) wrapper
foo2hbpl2 - Convert Ghostscript pbmraw or bitcmyk format into a ZJS printer stream
foo2hbpl2-wrapper - Convert Postscript into a ZJS printer stream
foo2hiperc - Convert Ghostscript pbmraw or bitcmyk format into a HIPERC printer stream
foo2hiperc-wrapper - Convert Postscript into a HIPERC printer stream
foo2hp - Convert Ghostscript pbmraw or bitcmyk format into a ZJS printer stream
foo2hp2600-wrapper - Convert Postscript into a ZJS printer stream
foo2lava - Convert Ghostscript pbmraw or bitcmyk format into a LAVAFLOW or a OPL printer stream
foo2lava-wrapper - Convert Postscript into a LAVAFLOW or OPL printer stream
foo2oak - Convert Ghostscript pbmraw, pgmraw or bitcmyk format into an OAKT printer stream
foo2oak-wrapper - Convert Postscript into an OAKT printer stream
foo2qpdl - Convert Ghostscript pbmraw or bitcmyk format into a QPDL printer stream
foo2qpdl-wrapper - Convert Postscript into a QPDL printer stream
foo2slx - Convert Ghostscript pbmraw or bitcmyk format into a SLX printer stream
foo2slx-wrapper - Convert Postscript into a SLX printer stream
foo2xqx - Convert Ghostscript pbmraw into a XQX printer stream
foo2xqx-wrapper - Convert Postscript into a XQX printer stream
foo2zjs - Convert Ghostscript pbmraw or bitcmyk format into a ZJS printer stream
foo2zjs-icc2ps - little cms PostScript converter.
foo2zjs-pstops - Add PS code for foo2*-wrapper
foo2zjs-wrapper - Convert Postscript into a ZJS printer stream
foomatic-addpjloptions - Format PJL option information the for foomatic database
foomatic-cleanupdrivers
foomatic-combo-xml - <put a short description here>
foomatic-compiledb - Compile the Foomatic printer/driver database
foomatic-configure - the main configuration program of the foomatic printing system.
foomatic-datafile - Generate a PPD file for a given printer/driver combo
foomatic-extract-text
foomatic-fix-xml
foomatic-getpjloptions - <put a short description here>
foomatic-kitload - installs a data kit into the foomatic database.
foomatic-nonumericalids
foomatic-perl-data - generate Perl data structures from XML
foomatic-ppd-options - show the PPD options
foomatic-ppd-to-xml
foomatic-ppdfile - Generate a PPD file for a given printer/driver combo
foomatic-preferred-driver - <put a short description here>
foomatic-printermap-to-gutenprint-xml
foomatic-printjob - manage printer jobs in a spooler-independent fashion
foomatic-replaceoldprinterids
foomatic-rip - Universal print filter/RIP wrapper
foomatic-searchprinter
fortune - print a random, hopefully interesting, adage
fping - send ICMP ECHO_REQUEST packets to network hosts
fping6 - send ICMP ECHO_REQUEST packets to network hosts
free - Display amount of free and used memory in the system
freshclam - update virus databases
friends-dispatcher
friends-service
from - print names of those who have sent mail
fsck - check and repair a Linux filesystem
fsck.cramfs
fsck.ext2 - check a Linux ext2/ext3/ext4 file system
fsck.ext3 - check a Linux ext2/ext3/ext4 file system
fsck.ext4 - check a Linux ext2/ext3/ext4 file system
fsck.ext4dev - check a Linux ext2/ext3/ext4 file system
fsck.minix - check consistency of Minix filesystem
fsck.msdos - check and repair MS-DOS filesystems
fsck.nfs - Dummy fsck.nfs script that always returns success.
fsck.vfat - check and repair MS-DOS filesystems
fsfreeze - suspend access to a filesystem (Linux Ext3/4, ReiserFS, JFS, XFS)
fslsfonts - list fonts served by X font server
fstab-decode - run a command with fstab-encoded arguments
fstobdf - generate BDF font from X font server
fstopgm - convert a Usenix FaceSaver(tm) file into a portable graymap
fstrim - discard unused blocks on a mounted filesystem
ftp - Internet file transfer program
function_grep.pl
funzip - filter for extracting from a ZIP archive in a pipe
fuser - identify processes using files or sockets
fusermount - mount and unmount FUSE filesystems
fzputtygen - SFTP private key converter of FileZilla
fzsftp - SFTP connection handler of FileZilla

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