Linux Shell Usage Tips

Create multiple catalogs at once

[Email protected] tmp]# mkdir-p/user/{folder1,folder2,folder3} [[email protected] tmp]# Ls/user/folder1 Folde R2 Folder3

Find the largest 10 directories in the root directory and sort them from large to small by using space

[Email protected] ~]# du-a./| Sort-nr | Head-n 132380./132316./source 69916./source/zendguard-5_5_0.tar.gz 18720./source/xunza I.com_mysql-5.0.18.tar.gz 13732./source/php-5.4.11.tar.gz 6144./source/phpmyadmin-3.5.6-all-languages.tar.     GZ 5996./source/httpd-2.4.3.tar.gz 5044./source/libxml2-2.9.0.tar.gz 1984./source/pcre-8.32.zip 1960./source/freetype-2.4.10.tar.gz

Look at the root directory under all "." The file that starts with

[Email protected] ~]# find./-name ". [^.] * "./.bash_logout./.bash_profile./.bashrc./.tcshrc./.cshrc./.cache./.config./.bash_h Istory./.xauth96wqte./.mysql_history./.mysql_history. TMP./.viminfo

Modify the timestamp of a file or directory

[[email protected] ~]# stat person.txt      file: ?. erson.txt?       size: 74             blocks: 8          io  block: 4096   regular file     device: 803h/2051d     Inode: 145535279   Links: 1      access:  (0644/-rw-r--r--)   Uid:  (    0/    root)    Gid:  (    0/    root)       context: unconfined_u:object_r:admin_home_t:s0     access: 2016-04-02  05:05:10.370059171 -0700     Modify: 2016-04-02  05:04:40.854898705 -0700  &nbSp;  change: 2016-04-02 05:04:40.913901033 -0700     birth:  -     [[email protected] ~]# touch -t 201604052135  person.txt  #格式为YYMMDDhhmm      [[email protected] ~]# stat  person.txt       file: ?. erson.txt?       size: 74             blocks: 8          io  block: 4096   regular file     device: 803h/2051d     Inode: 145535279   Links: 1      access:  (0644/-rw-r--r--)   Uid:  (    0/    root)    Gid:  (    0/  &NBsp; root)      Context: unconfined_u:object_r:admin_home_t:s0      Access: 2016-04-05 21:35:00.000000000 -0700      modify: 2016-04-05 21:35:00.000000000 -0700     change:  2016-04-05 06:36:16.304945163 -0700     birth: -

Quick backup of one file: CP Filename{,.bak}

[[email protected] ~]# ls anaconda-ks.cfg person.txt source [[email protected] ~]# CP Person.txt{,.bak} [[EMA Il protected] ~]# ls anaconda-ks.cfg person.txt person.txt.bak source

Process runs to the background

[[email protected] ~]# Ctrl + Z

Process runs to the foreground

[[email protected] ~]# FG

Hexadecimal number of randomly generated 10-character numbers

[email protected] ~]# OpenSSL Rand-hex c3e805e84074211cc698

Unzip the file to a new directory

[[email protected] src]# ls    apr-1.4.6.tar.gz         libmcrypt-2.5.8.tar.gz     apr-util-1.5.1.tar.gz    libpng-1.5.14.tar.gz     autoconf-2.69.tar.gz     libxml2-2.9.0.tar.gz     debug                    pcre-8.32.zip      freetype-2.4.10.tar.gz  php-5.4.11.tar.gz     gd-2.0.35.tar.gz         phpMyAdmin-3.5.6-all-languages.tar.gz      Httpd-2.4.3             xunzai.com_ mysql-5.0.18.tar.gz     httpd-2.4.3.tar.gz       Zendguard-5_5_0.tar.gz     jpegsrc.v8b.tar.gz      zlib-1.2.7.tar.gz     kernels      [[email protected] src]# tar zxvf apr-1.4.6.tar.gz -c  /tmp/tmp/     apr-1.4.6/     apr-1.4.6/shmem/      apr-1.4.6/shmem/win32/     ............      [[email protected] src]# ls /tmp/tmp/     apr-1.4.6

Move all files with "TXT" in the file name into the "/tmp/tmp" directory

[Email protected] ~]# find-iname "*txt*"-exec mv-v {}/tmp/tmp/\; ?. /person.txt?. ?.     Tmp/tmp/person.txt? ?. /person.txt.bak?. ?.     Tmp/tmp/person.txt.bak? [Email protected] ~]# ls/tmp/tmp/apr-1.4.6 person.txt Person.txt.bak

Remove any line starting with "#"

[email protected] ~]# Cat A.txt This is the file #This are another file #This is the final file [email pro tected] ~]# sed ' 2s/^#//' a.txt This is the file that is another file #This is the final file

This article is from the "WE become whatwepractice" blog, please be sure to keep this source http://nearlv.blog.51cto.com/2432295/1771641

Linux Shell Usage Tips