Linux Command summary a. * (2)

Linux Command summary a. * (2)

1. aclocal compilation and Installation tool. Create aclocal. m4 in the configure. ac or configure. in file. The configure file can generate the makefile file.

2. aclocal-1.11 above

ALSA is Advanced Linux Sound Architecture, short for Advanced Linux Sound Architecture

3. aconnect an alsa serialization connection management tool

ACPI indicates advanced configuration and power management interfaces

4. acpi_listen: display the excitation time. Enable and disable the notebook display signal.

[root@jjy ~]# acpi_listen button/lid LID0 00000080 00000003button/lid LID0 00000080 00000004button/lid LID0 00000080 00000005button/lid LID0 00000080 00000006

5. acpid daemon processes power-related events

EXAMPLE This example will shut down your system if you press the power button. create a file named/etc/acpi/events/power that contains the following: event = button/power {or paste the button/lid above defaults 0 00000080 00000003} action =/etc/acpi/power. sh "% e" Then create a file named/etc/acpi/power. sh that contains the following:/sbin/shutdown-h now "Power button pressed" Now, when acpid is running, a press of the power button will cause the rule in/etc/acpi/events/power to trigger the script in/etc/acpi/power. sh. the script will then shut down the system.

6. ad, a new unix file management tool, can replace cp, rm, and mv commands

7. add-printer add a new printer

8. add_netatalk_printer is the same as add-printer.

9. adddebug adds debug information for the makefile file

OPTIONS       -k           Keep optimisations (do not remove -O[1-9]?  flags which are removed by default).       -r           Recursively search through all subdirectories of the current directory and operate on every Makefile that is found.       -n           compile without NDEBUG and NO_DEBUG being defined (makes kDebug calls work)

10. addftinfo edit font

11. addgnupghome copies the files under/etc/skel/. gnupg/to each account added by addgnuphome.

[Root @ jjy/etc/skel/. gnupg] # ls awkTest. sh awkTest. sh ~ Ded ~ HongkongAndMacaoPoint <strong> before nouse_user. the gnupg directory can be deleted. </strong> [root @ jjy/etc/skel /. gnupg] # addgnupghome nouse_useraddgnupghome: creating home directory '/home/nouse_user /. gnupg' for 'nouse _ user' [root @ jjy/etc/skel /. gnupg] # ls-al/home/nouse_user/total 20drwx -- x 3 nouse_user users 4096 Dec 3. drwxr-xr-x 8 root 4096 Dec 3 :44 .. drwx ------ 2 nouse_user users 4096 Dec 3. gnupg-rw-r -- 1 nouse_user users 3729 May 17 2013. screenrc-rw ------- 1 nouse_user users 661 Dec 3. viminfo [root @ jjy/etc/skel /. gnupg] # ls/home/nouse_user /. gnupg/awkTest. sh ded hongkongAndMacaoPoint

12 addpart command for partitioning hard drive devices in octal format

DESCRIPTION       addpart is a program that informs the Linux kernel of new partition.       This command doesn't manipulate partitions on hard drive.PARAMETERS       device Specify the disk device.       partition              Specify the partition number.       start  Specify the begin of the partition (in 512-byte sectors).       length Specify the length of the partition (in 512-byte sectors).usage: addpart diskdevice partitionnr start length

13. adduser Add User

14. aecho-send AppleTalk Echo Protocol packets to network hosts

I don't know how to use the apple conversation protocol ....

14. adjtimex adjusted the Kernel Time variable

The inux system has two clocks: one is the "Real Time Clock" driven by the motherboard battery, also known as RTC or CMOS Clock, and the hardware Clock. When the operating system is shut down, this time is used to record the time, but this time is not required for the running system. Another time is "System clock", also called the kernel clock or software clock, which is counted by the Software Based on Time interruption. The kernel clock does not exist when the System is shut down, when the operating system starts, the kernel clock needs to read the RTC time for time synchronization (in some cases, the kernel clock can also read the time through the ntp server) these two clocks usually have some errors, so long time can lead to many deviations between the two clocks. The simplest way to keep the two time syntaxes is to use software to measure the error rate between them, then use the software for correction. Every time you restart the system, the system uses the hwclock command to synchronize the time. If the kernel clock is interrupted fast or slow at each time, you can use the adjtimex command to adjust the speed of the RTC and Kernel Time. Adjtimex allows you to adjust the Kernel Time parameters, so you can change the kernel time speed. You can use the hwclock command to compare the offset rate of the kernel time and RTC time, then, the adjtimex command is used to correct the kernel time based on the offset rate to make the kernel time faster or slower. When the adjusted Kernel Time is as fast as the RTC time, you can write this command line to the startup script so that the kernel time parameter can be adjusted correctly each time the machine starts.

15. afm2tfm convert Adobe font metrics to TeX font metrics

16. afmtodit-create font files for use with groff-Tps and-Tpdf

Netatalk is a free, open-source implementation of the Apple Filing Protocol. It allows Unix-like operating systems to serve as file, print and time servers for Macintosh computers

17. afpd-Apple Filing Protocol daemon

18. afpldaptest is a simple command to syntactically check/etc/netatalk/afp_ldap.conf

19. afppasswd-netatalk password maintenance utility