Common LINUX knowledge

Some common LINUX knowledge-general Linux technology-Linux technology and application information in the work. The following is a detailed description. 1. How to add the custom environment information script to the startup item?

A: add it to/etc/profile.

Source script path name.

Source/home/syssh/profile. sh

2: Decompress the tar.gz File

Tar zxvf *. tgz

At xx.tar.gz | gzip-d | tar-xvf-

3: zip file decompression command

Unzip *. zip

4: Force Delete cascading Directories

Rm-r-f directory name

5: tar command

Package files
Tar-cvf tar file name directory name
Unpack files
Tar xvf tar file name

6. view the number of folders in the directory

Ls-l | wc

The preceding number is the number of files.

7: view the file and the size of all files in the directory

Du