Several Linux commands frequently used in test work (first bullet)

Their usual test work in the Linux often to build a test environment, there are related to start/Stop the server, modify the Tomcat configuration file, occasionally hit the port is occupied ...

At this point, you have to need some basic Linux commands to handle these problems (by the way, to pack B tour)

1.CD command

For switching directories (you can switch one level at a time, or you can switch to the specified directory at once)

[[Email protected] ~]$ CD Shipping/[[email protected] ~]$ CD Shipping/apache-tomcat-7.0.55/bin/[[email protected] ~]$ CD. .        Back to previous level [[email protected] ~]$ CD/         back to root directory

2.ls command

Show which files are in the current directory

[[email protected] ~]$ ls2017-03-27_all.log  gold  shipping  test[[email protected] ~]$ ls-a      Show All Files, Include hidden files (preceded with ".") files).   2017-03-27_all.log  . bash_history.  bashrc  . java     shipping  test ...  Ansible            . Bash_profile  Gold     lesshst  . SSH      . Viminfo[[email protected] ~]$ ls-l       Show file Details total usage 276-rw-r--r--.  1 Hanmengkai default 269527 March  16:41 2017-03-27_all.logdrwxr-xr-x 4 hanmengkai default   4096 March   2 09:41 Golddrwxr-xr-x. 3 Hanmengkai default   4096 March   1 18:58 shippingdrwxr-xr-x 3 hanmengkai default   4096 May  13:56 test

3.mkdir command

Create a Directory

[Email protected] test]$ mkdir KK     Create a new directory under current directory [[email protected] test]$ mkdir QQ AA   Create multiple directories simultaneously [email Protected] test]$ mkdir-p kk/mk   Plus-p parameter, you can create a new directory under a directory

4.RM command

Delete a file or directory

[[Email protected] test]$ RM sh.xml        Delete a file (followed by file name) [[email protected] test]$ rm-i ssa.xml      plus parameter-I, Before deleting, ask whether to delete RM: Delete normal file "Ssa.xml"? [[email protected] test]$ rm-i *.log          Delete any. log files; Confirm RM: Delete normal empty file "1.log" before deleting? NRM: Do you want to delete the normal empty file "2.log"? NRM: Do you want to delete the normal empty file "3.log"? N[[email protected] test]$ rm-r KK       plus parameter-r, means delete directory Kk[[email protected] test]$ rm-ri QQ     directory and directory in the file delete, (without the I parameter, RM: Do you want to enter the directory "QQ"? YRM: Do you want to enter the directory "QQ/QQ"? YRM: Do you want to delete the directory "qq/qq/km"? YRM: Do you want to delete the directory "QQ/QQ/MK"? Y

5.CP command

Copy a file or directory

CP [Options] ... Source... purpose [[email protected] test]$ CP 1.log aa/    copy 1.log files to the AA directory
[[email protected] test]$ cp-r aa/ccvv/   Copy the contents of the AA directory and directory into the CCVV directory [[email protected] test]$ CP-a  1.log 2.log   Complex (Backup) A 1.log file, the name of the new file is 2.log[[email protected] test]$ cp aa/1.log sh/   Copy the 1.log file under the AA directory to the SH directory

6.tar command

You can package a bunch of files or directories into a single file that you can package, compress, unzip

Syntax: Tar  parameter  package compressed file name  needs to be packaged files/directory name common parameters:-C  Package-         x  Extract files from a compressed package-         v  display operation Process-         F   Specify ZIP/Unzip file name-         z   package simultaneous compression/decompression [[email protected] test]$ TAR-CVF log.tar 1.log 2.log 3.log     3 log files into a tar package, Named Log.tar[email protected] test]$ tar-xvf log.tar    unpacking [[email protected] test]$ TAR-ZCVF log.tar.gz 1.log 2.log 3.lo G     3 log files into a tar package and compressed in gzip format, named Log.tar.gz[[email protected] aa]$ tar-zxvf log.tar.gz     extract log.tar.gz to the current folder [ [Email protected] aa]$ TAR-ZXVF log.tar.gz 1.log   extract only the 1.log files in the package [email protected] aa]$ TAR-ZTVF LOG.TAR.GZ
    view file names in log.tar.gz (parameter T)-rw-r--r--hanmengkai/default 7 2017-05-12 15:34 1.log-rw-r--r--Hanmengkai/default 0 2017-05-12 15:15 2.log-rw-r--r--hanmengkai/default 0 2017-05-12 15:15 3.log[[email protected] aa]$ TAR-ZXVF log.tar.gz- The C  wq/   -D parameter extracts the compressed package to the specified directory (the WQ directory specified here)

7.true command

Empty the contents of the file

[[email protected] aa]$ true >catalina.out  so that the contents of the file is emptied (can be used to view the log, the first empty the existing log, and then re-log, so that the eyes are not easy to blind ...) ）

　　　

Several Linux commands frequently used in test work (first bullet)