Util-linux，该软件包中包含了繁杂的命令。这些命令用于文件系统、控制台、分区和信息。

安装的命令列表

addpart，Informs the Linux kernel of new partitions
agetty，Opens a tty port, prompts for a login name, and then invokes the login program
blkdiscard，Discards sectors on a device
blkid，A command line utility to locate and print block device attributes
blockdev，Allows users to call block device ioctls from the command line
cal，Displays a simple calendar
cfdisk，Manipulates the partition table of the given device
chcpu，Modifies the state of CPUs
chrt，Manipulates real-time attributes of a process
col，过滤掉反向换行符号。
colcrt，Filters nroff output for terminals that lack some capabilities, such as overstriking and half-lines
colrm，Filters out the given columns
column，Formats a given file into multiple columns
ctrlaltdel，Sets the function of the Ctrl+Alt+Del key combination to a hard or a soft reset
delpart，Asks the Linux kernel to remove a partition
dmesg，Dumps the kernel boot messages
eject，Ejects removable media
fallocate，Preallocates space to a file
fdformat，Low-level formats a floppy disk
fdisk，Manipulates the partition table of the given device
findfs，Finds a file system by label or Universally Unique Identifier (UUID)
findmnt，Is a command line interface to the libmount library for work with mountinfo, fstab and mtab files
flock，Acquires a file lock and then executes a command with the lock held
fsck，Is used to check, and optionally repair, file systems
fsck.cramfs，Performs a consistency check on the Cramfs file system on the given device
fsck.minix，Performs a consistency check on the Minix file system on the given device
fsfreeze，Is a very simple wrapper around FIFREEZE/FITHAW ioctl kernel driver operations
fstrim，Discards unused blocks on a mounted filesystem
getopt，Parses options in the given command line
hexdump，Dumps the given file in hexadecimal or in another given format
hwclock，Reads or sets the system’s hardware clock, also called the Real-Time Clock (RTC) or Basic Input-Output System (BIOS) clock
i386，A symbolic link to setarch
ionice，Gets or sets the io scheduling class and priority for a program
ipcmk，Creates various IPC resources
ipcrm，Removes the given Inter-Process Communication (IPC) resource
ipcs，Provides IPC status information
isosize，Reports the size of an iso9660 file system
kill，Sends signals to processes
last，Shows which users last logged in (and out), searching back through the /var/log/wtmp file; it also shows system boots, shutdowns, and run-level changes
lastb，Shows the failed login attempts, as logged in /var/log/btmp
ldattach，Attaches a line discipline to a serial line
linux32，A symbolic link to setarch
linux64，A symbolic link to setarch
logger，Enters the given message into the system log
look，Displays lines that begin with the given string
losetup，Sets up and controls loop devices
lsblk，以“树”的形式打印所有的或者选中的块设备。
lscpu，Prints CPU architecture information
lsipc，Prints information on IPC facilities currently employed in the system
lslocks，Lists local system locks
lslogins，Lists information about users, groups and system accounts
mcookie，Generates magic cookies (128-bit random hexadecimal numbers) for xauth
mesg，控制其他用户是否可以向当前用户的终端发送消息。
mkfs，Builds a file system on a device (usually a hard disk partition)
mkfs.bfs，Creates a Santa Cruz Operations (SCO) bfs file system
mkfs.cramfs，Creates a cramfs file system
mkfs.minix，Creates a Minix file system
mkswap，Initializes the given device or file to be used as a swap area
more，A filter for paging through text one screen at a time
mount，将文件系统挂在到指定的目录中。
mountpoint，检查目录是否为一个挂载点。
namei，Shows the symbolic links in the given pathnames
nsenter，Runs a program with namespaces of other processes
partx，Tells the kernel about the presence and numbering of on-disk partitions
pg，Displays a text file one screen full at a time
pivot_root
Makes the given file system the new root file system of the current process
prlimit，Get and set a process’ resource limits
raw，Bind a Linux raw character device to a block device
readprofile，Reads kernel profiling information
rename，重命名给出的文件，使用另一个替换给出的字符串。
renice，Alters the priority of running processes
resizepart，Asks the Linux kernel to resize a partition
rev，Reverses the lines of a given file
rtcwake，Used to enter a system sleep state until specified wakeup time
script，Makes a typescript of a terminal session
scriptreplay，Plays back typescripts using timing information
setarch，Changes reported architecture in a new program environment and sets personality flags
setsid，Runs the given program in a new session
setterm，设置终端的属性。
sfdisk，A disk partition table manipulator
sulogin，Allows root to log in; it is normally invoked by init when the system goes into single user mode
swaplabel，Allows to change swaparea UUID and label
swapoff，Disables devices and files for paging and swapping
swapon，Enables devices and files for paging and swapping and lists the devices and files currently in use
switch_root
Switches to another filesystem as the root of the mount tree
tailf，Tracks the growth of a log file; displays the last 10 lines of a log file, then continues displaying any new entries in the log file as they are created
taskset，Retrieves or sets a process’ CPU affinity
ul，A filter for translating underscores into escape sequences indicating underlining for the terminal in use
umount，Disconnects a file system from the system’s file tree
uname26，A symbolic link to setarch
unshare，Runs a program with some namespaces unshared from parent
utmpdump，Displays the content of the given login file in a more user-friendly format
uuidd，A daemon used by the UUID library to generate time-based UUIDs in a secure and guranteed-unique fashion
uuidgen，Creates new UUIDs. Each new UUID can reasonably be considered unique among all UUIDs created, on the local system and on other systems, in the past and in the future
wall，Displays the contents of a file or, by default, its standard input, on the terminals of all currently logged in users
wdctl，Shows hardware watchdog status
whereis，Reports the location of the binary, source, and man page for the given command
wipefs，Wipes a filesystem signature from a device
x86_64，A symbolic link to setarch
zramctl，A program to set up and control zram (compressed ram disk) devices
write，

手册长度统计（暂存）

# find . -type f -name ‘*.txt’ | grep -v ‘(‘ | xargs wc -l | sort –numeric-sort -k 1,1 | pager > /tmp/tmp

# 66 ./pivot_root.txt
# 68 ./raw.txt
# 70 ./fdformat.txt
# 70 ./ipcrm.txt
# 71 ./mkfs.minix.txt
# 73 ./mkfs.cramfs.txt
# 75 ./chcpu.txt
# 75 ./namei.txt
# 76 ./scriptreplay.txt
# 79 ./fstrim.txt
# 80 ./uuidd.txt
# 83 ./taskset.txt
# 84 ./ipcs.txt
86 ./script.txt

101 ./readprofile.txt

102 ./lastb.txt

103 ./chrt.txt

103 ./last.txt

103 ./wipefs.txt

104 ./lsipc.txt

107 ./flock.txt

108 ./blockdev.txt

120 ./cfdisk.txt

121 ./lslogins.txt

121 ./swapoff.txt

121 ./swapon.txt

125 ./ldattach.txt

126 ./rtcwake.txt

127 ./partx.txt

131 ./nsenter.txt

135 ./lscpu.txt

135 ./prlimit.txt

149 ./unshare.txt

153 ./lsblk.txt

155 ./losetup.txt

155 ./umount.txt

158 ./setterm.txt

161 ./dmesg.txt

161 ./fsck.txt

170 ./getopt.txt

183 ./eject.txt

189 ./hexdump.txt

206 ./blkid.txt

208 ./findmnt.txt

222 ./fdisk.txt

222 ./logger.txt

336 ./agetty.txt

344 ./sfdisk.txt

448 ./hwclock.txt

1949 ./mount.txt

参考文献

• Wikipedai/util-linux
• Repository: GitHub and Kernel
• LFS/6.66. Util-linux-2.28.1