[100]linux Common Command Parameters Summary

1.mkdir2.ls-l-D Displays the directory-F to the end of the folder Plus/ID-A to. Start with hidden files-rt in reverse chronological order of modification (most recently modified at the bottom) Ls-lhrt #最新的在下面 3.CD4.P Wd5.touch6.vi7.vim8.echo mate > >>-N non-newline-e content carry escape (\ n enter \ t tab) $echo-E ' mao\ntai ' 9.cat-n display line number 10.xar Gs-n numbers. Group echo stu{1..20}.md|xargs-n 1 > 1.md find. -type F|xargs sed-i ' s#<script type= "Text/javascript" Src=http://%4%66ccxxx&[email protected]#@[email     protected]#[email protected]$%@#[email protected]#$></script># #g '; Find. -type f-name ' 1.md ' |xargs-i mv {}/tmp/11.cp-a is equivalent to-pbr-f (force)-R (Recursive) recursion 12.rm 1. Take TMP as Recycle Bin 2. CD first. Find. -name "" |xargs rm-f13.mv14.find:http://www.cnblogs.com/iiiiher/p/8507948.html-type F (file) d (directory) C (charact ER) b (block) s (socket) L (link)-name-size-mtime modified: +7 (more than 7 days) 7-7 (within 7 days)-maxdepth Find depth! Reverse. The-A (and) intersection (default). -O or set-exec find. -type f-name ' 1.md ' |xargs-i mv {}/tmp/find. -type F-MTIME +7 |xargs rm-f find. -type f-mtime +7-exec rm-f {} \;15.grep: Three musketeers old three-V exclusion: Production monitoring process: Ps-ef|grep "/sshd" |grep-v "grep"-abc-e equivalent to EGR EP ' 1|2 '-o shows only matches to the content-N to match to the displayed line number of the-e =egrep. You can filter multiple (or). Cat svc.txt|grep-e "Rsyslog|sshd|network|crond|sysstat" |awk ' {print ' Chkconfig '. $. On "} '-I is not case-sensitive 16.head-n5: Custom head-5 17.tail18.alias19.unalias20.seq sequence-s specified delimiter seq 1 #开始 knot  Bundle SEQ 1 2 #开始 end of tolerance 21.sed-n cancels the default output. Only the output matches the desired-P print. Sed-n ' P a.log; Sed-n ' 20.30 ' p a.log filtering function (Regular): Sed-n '/^d/p ' G is used in conjunction with S. Indicates replacement: Sed-i ' s#maotai#maotai#g ' a.log #是分隔符 sed over Filter function: Ls-l|sed-n '/^d/p ' ls-l|sed-n '/\/$/p ' filter file permissions: Stat maotai.txt |sed-nr ' 4s#^.*\ (0 (. *)/-.*$#\1#GP        ' Filter Ip:ifconfig eth0|sed-nr ' 2s#^.*net (. *) NET.*$#\1#GP ' 22.awk #过滤/output content. A language.  NR line number: awk ' nr>30 && nr<40 ' awk ' nr>30 && nr<40 {print $ {} ' M.txt ' first column     The second column is the entire row:           awk ' {print $1.$2} ' awk ' {print $ ' # ' $ "$} ' awk ' {if ($2>1) print$0} ' Cat svc.txt|grep-e "Rsyslog|sshd|network|crond|sysstat" |awk ' {print "Chkconfig". $. "            On '} ' displays line number: awk ' {print nr.$0} ' filtering function (regular): Regular match: awk '/^d/' (filter directory) Ls-l|awk '/^d/' (Filter directory) Ls-l|awk '/\/$/'-f delimiter. Split with multiple separators awk-f ' [:]+ ' filter file permissions: Stat maotai.txt |sed-nr ' 4s#^.*\ (0 (. *)/-.*$#\1#GP ' filter Ip:ifconfig eth0|sed-nr ' 2s#^.*net (. *) NET.*$#\1#GP ' 23.useradd24.passwd non-interactive Change password: echo " 12345 "|PASSWD--stdin maotai25.uname:-M #--machine 32or64-r #--release kernel version-a #--all-n #--nodename 26.27.2 8.init: Toggles the runlevel. Follow the corresponding level of numbers. For example: Init 6 restarts.     Init 0 shutdown. 29.shutdown-h now-r # reboot-h # halt30.reboot (init 6) reboot. Shutdown-r now31.history (histsize=1000 control. Bash_history the number of strips, first emptied after setting)-C #Clear清空所有历史-D #删除某一条记录, hist ory-d 222-r #清除当前session的-W #WriTe updates immediately. Bash_history Last >/var/log/wtmp # successful login user Lastb >/var/log/btmp # try to sign in information Lastlog >/var/ Log/lastlog # Show recent login information [set Linux system History related variables, command time, save history number, multi session sharing history] (http://coolnull.com/4013.html) [ Reference: Escape from Clear history] (http://topspeedsnail.com/clear-last-linux-login-log/) >/var/log/wtmp>/var/log/btmp>/var/ Log/lastlog>/root/.bash_history #如果要删除某几条. Then e-not log $ < space >command/etc/profile histsize= 1000 set to 0. Do not log histsize=3000 # Histsize defines the number of records that the history command outputs. histfilesize=3000 # Histfilesize defines the total number of records saved in the. bash_history command.    Histsize=0 # Disable HISTORY32.DMESEG # Displays system fault information 33.ifup and Ifdown. # start stop nic 34.nl number lines # show file line numbers 35.less # and more opposite. Enter one line at a time. Press B to rewind one screen at a time. 36.more (infrequently used) press the page one screen at a time. Cannot fallback 37. Wc-l (lines) # show Total row count production monitoring process: Ps-ef|grep "/sshd" |grep-v "grep" |wc-l38.chkconfig (/etc/rc.local) # Set boot from boot. Default management 2,345 level--list # Show All--list sshd--level 234 chkconfig sshd on/ofF chkconfig--level 234 sshd on/off chkconfig--list #列出所有的系统服务 chkconfig--a       DD httpd #增加httpd服务 chkconfig--del httpd #删除httpd服务 chkconfig--level httpd 2345 on In the case of #设置httpd在运行级别为2, 3, 4, 5 are on (open) state chkconfig--list #列出系统所有的服务启动情况 CHKCO Nfig--list mysqld #列出mysqld服务设置情况 chkconfig--level-mysqld on #设定mysqld在等级3和5为开机运行服务,- -level 339.tar-zcvf-j-x-x-n-p-p-c # Specify where to extract--exclude # Exclude directory or file reference: HTT p://www.cnblogs.com/iiiiher/p/8571517.html tar-cvf test.tgz test/--exclude *.txt--exclude dir140.cut cut take column-D delimiter-F fetch     Column-C character-D with what split-C how many characters-c2-1041.tr # character replacement 42.stat # display file and file system status (view file properties) 43.file # view File type 44.last # View User login information/var/log/wtmp data file 45.lastlog # Displays recent user login information. /VAR/LOG/WTMP46.DF-H47.DUMPE2FS # View internal information (metadata) of the file system 48.tree-l Layer-D directory tree-ld 1 /etc/# Show First level directory 49.id # View user and group information 50.ln # Create soft hard link-s soft (readlink) 51.du-sh # View file and directory size 52.which # from the PATH variable In the path Finder path special variable: path location of all commands of path. Isolate the lang character set variable with a colon

[100]linux Common Command parameter summary