Contents of Util-linux Last checked against version &util-linux-contversion;. Program Files agetty, arch, blockdev, cal, cfdisk, chkdupexe, col, colcrt, colrm, column, ctrlaltdel, cytune, ddate, dmesg, elvtune, fdformat, fdisk, fsck.cramfs, fsck.minix, getopt, hexdump, hwclock, ipcrm, ipcs, isosize, line, logger, look, losetup, mcookie, mkfs, mkfs.bfs, mkfs.cramfs, mkfs.minix, mkswap, more, mount, namei, parse.bash, parse.tcsh, pg, pivot_root, ramsize (link to rdev), raw, rdev, readprofile, rename, renice, rev, rootflags (link to rdev), script, setfdprm, setsid, setterm, sfdisk, swapoff (link to swapon), swapon, test.bash, test.tcsh, tunelp, ul, umount, vidmode (link to rdev), whereis and write Descriptions agetty agetty opens a tty port, prompts for a login name and invokes the /bin/login command. arch arch prints the machine architecture. blockdev blockdev allows to call block device ioctls from the command line. cal cal displays a simple calender. cfdisk cfdisk is a libncurses based disk partition table manipulator. chkdupexe chkdupexe finds duplicate executables. col col filters reverse line feeds from input. colcrt colcrt filters nroff output for CRT previewing. colrm colrm removes columns from a file. column column columnates lists. ctrlaltdel ctrlaltdel sets the function of the CTRL+ALT+DEL key combination (hard or soft reset). cytune cytune queries and modifies the interruption threshold for the Cyclades driver. ddate ddate converts Gregorian dates to Discordian dates. dmesg dmesg is used to examine or control the kernel ring buffer (boot messages from the kernel). elvtune elvtune allows to tune the I/O elevator per block device queue basis. fdformat fdformat low-level formats a floppy disk. fdisk fdisk is a disk partition table manipulator. fsck.cramfs No description is currently available. fsck.minix fsck.minix performs a consistency check for the Linux MINIX filesystem. getopt getops parses command options the same way as the getopt C command. hexdump hexdump displays specified files, or standard input, in a user specified format (ascii, decimal, hexadecimal, octal). hwclock hwclock queries and sets the hardware clock (Also called the RTC or BIOS clock). ipcrm ipcrm removes a specified resource. ipcs ipcs provides information on IPC facilities. isosize isosize outputs the length of a iso9660 file system. line line copies one line (up to a newline) from standard input and writes it to standard output. logger logger makes entries in the system log. look look displays lines beginning with a given string. losetup losetup sets up and controls loop devices. mcookie mcookie generates magic cookies for xauth. mkfs mkfs builds a Linux filesystem on a device, usually a harddisk partition. mkfs.bfs mkfs.bfs creates a SCO bfs file system on a device, usually a harddisk partition. mkfs.cramfs No description is currently available. mkfs.minix mkfs.minix creates a Linux MINIX filesystem on a device, usually a harddisk partition. mkswap mkswap sets up a Linux swap area on a device or in a file. more more is a filter for paging through text one screen full at a time. mount mount mounts a filesystem from a device to a directory (mount point). namei namei follows a pathname until a terminal point is found. parse.bash, parse.tcsh, test.bash, test.tcsh These are example scripts for using the getopt program with either BASH or TCSH. pg No description is currently available. pivot_root pivot_root moves the root file system of the current process. ramsize ramsize queries and sets RAM disk size. raw raw is used to bind a Linux raw character device to a block device. rdev rdev queries and sets image root device, swap device, RAM disk size, or video mode. readprofile readprofile reads kernel profiling information. rename rename renames files. renice renice alters priority of running processes. rev rev reverses lines of a file. rootflags rootflags queries and sets extra information used when mounting root. script script makes typescript of terminal session. setfdprm setfdprm sets user-provides floppy disk parameters. setsid setsid runs programs in a new session. setterm setterm sets terminal attributes. sfdisk sfdisk is a disk partition table manipulator. swapoff swapoff disables devices and files for paging and swapping. swapon swapon enables devices and files for paging and swapping. tunelp tunelp sets various parameters for the LP device. ul ul reads a file and translates occurrences of underscores to the sequence which indicates underlining for the terminal in use. umount umount unmounts a mounted filesystem. vidmode vidmode queries and sets the video mode. whereis whereis locates a binary, source and manual page for a command. write write sends a message to another user.