linux at command examples

Label: style HTTP ar OS use SP strong on BS Dig Command Options and Examples + [No] query using TCP or without TCP + [No] VC provides options for compatibility with earlier versions. The same role as TCP options. VC stands for "virtual circuit" + [No] Ignore ignores the truncated UDP return package, instead of using a TCP connection to retry. By default, TCP connections are used for retry. + [No

flush-logs [[emailprotected] ~]# mysqladmin-u root-ptmppasswor D flush-privileges [[emailprotected] ~]# mysqladmin-u root-ptmppassword flush-status [[email Protected] ~]# mysqladmin-u root-ptmppassword flush-tables [[emailprotected] ~]# mysqladmin-u ROOT-PTMPPASSW Ord Flush-threads - ) mysqladmin Execution Kill Process:[Email protected] ~]# mysqladmin-uroot-p processlist[Email protected] ~]# mysqladmin-uroot-p kill Idnum + ) stop and start MySQL Replication on a Slave server[Email protect

Linux Command (1): cd command, linux Command cd 1. Role: Change the working directory; 2. Format: Cd [path] The path is the working directory to be changed. It can be a relative path or an absolute path. 3. Use instances: [Root @ www uclinux] # cd/home/yourname/ 4. Inst

One linux Command every day (27): linux chmod command link: One linux Command every day (1): ls command http://www.bkjia.com/ OS /210210/163049.html#linuxlinuxcommand every day (2): cd

20,5%-T 5critical-host unreachable (192.168.101.49)4. Use IPv4 of IPV6By default, it'll use IPV4. So, you really don ' t need to specify "-4" (which is optional).#./check_ping-h 192.168.1.1-w 1,10%-C 2,20% -4ping ok-packet loss = 0, RTA = 0.14 ms|rta=0.142000ms;1.000000;2.0000 00;0.000000 pl=0%;10;20;0But if you use the IPV6 address, you should use-6 as shown below.#./check_ping-h 2002:4559:1fe2::4559:1fe2-w 1,2%-C 2,5%-65. check_ping Error MessagesThe following is some possible error messages

the master root and belong to the group mail;Find/var-user Root-group Mail6. Find files that do not belong to Root,bin or student in the/USR directory;Find/usr-not-user root-a-not-user bin-a-not-user StudentFind/usr-not \ (-user root-o-user bin-o-user student \)7. Find files that have been modified in the last week and not belonging to root and student users in/etc directory;Find/etc-mtime-7-not \ (-user root-o-user student \)Find/etc-mtime-7-not-user root-a-not-user Student8, find the current

blank characters at the beginning of the/etc/grub. conf file [[emailprotected]~]#sed-r‘s#^[[:space:]]+##g‘/etc/grub.conf 2. Replace ID: 3: initdefault: 3 in the/etc/inittab file with 6 [[emailprotected]~]#sed‘s#\(id:\)[0－9]\(:initdefault:\)#\16\2#g‘/etc/inittab 3. Delete blank lines in the/etc/inittab file. [[emailprotected]~]#sed‘/^$/d‘/etc/inittab 4. Delete the # header in the/etc/inittab file line [[emailprotected]~]#sed‘s/^#//g‘/etc/inittab 5. Delete the first line of a file # And Its trail

Linux Command head command, linux Command head The head and tail are just as easy to understand as their names. They are used to display a certain number of text blocks at the beginning or end, and the head is used to display the beginning of the file to the standard output

from the file whether the first row matches/tom if there is no execution will not be executed until after reading, then run End statement can choose the begin match the ENG. awk '/^mike/{print} ' fileawk ' nr==2{print ' file NR is the number of line number NF fieldsawk ' nr==2| | Nr==4{print "file reads only two fixed line numbersawk ' {print $} ' file $ entire rowawk ' bengin{fs= ': "ofs=" "}/bash$/{print $} ' file FS specifies a delimiter: OFS specifies the field delimiter for the outputTR ":

Vertical Bar | can be used in DOS commandsThe function is to put the symbol before the process output, after making the sign process input.The code for this example in Codego.net is as follows:For example, two commands, "dir/s/b/a" and "find". txt "", the first shows all the files, folders in the current folder, and the second is to find a string containing the character ". txt".Two commands you can "find all files and folders in the current folder that contain. txt." By using a vertical line co