Commonly used Linux commands 22

Find Files

find / -name filename.txt

According filename.txt file name lookup / directory

Check if a program running

ps –ef|grep tomcat

View all processes related to the tomcat

Terminate the thread

kill -9 19979

Terminate the thread number of the thread-bit 19979

View files, containing hidden files

ls -al

The current working directory

pwd

Copy the file, including its subfolders to a custom directory

cp -r sourceFolder targetFolder

Create a directory

mkdir newfolder

Delete the directory (this directory is an empty directory)

rmdir deleteEmptyFolder

Delete a file, including its subfolders

rm -rf deleteFile

Moving Files

mv /temp/movefile /targetFolder

Extended rename mv oldNameFile newNameFile

Switch User

su -username

Modify file permissions

chmod 777 file.java
//file.java的权限-rwxrwxrwx，r表示读、w表示写、x表示可执行

Compressed file

tar -czf test.tar.gz /test1 /test2

Lists the compressed files list

tar -tzf test.tar.gz

unzip files

tar -xvzf test.tar.gz

View the first 10 lines of the file

head -n 10 example.txt

10 lines to see the end of file

tail -n 10 example.txt

View Log File

tail -f exmaple.log
//这个命令会自动显示新增内容，屏幕只显示10行内容的（可设置）。

Start Vi editor

vi

Display the current time

date

Jiji command output cycle time and day of the month and year time display format

Sat Jan 20 04:39:49 CST 2018

date +"%Y-%m-%d"

It is shown below:

[root@ming xxx]# date +"%Y-%m-%d" 2018-01-20

Note: If you are unsure that we can to help;

Extract the zip file

unzip -oq

View the number of threads (for easy viewing program is wrong)

ps -Lf 端口号|wc -l