Linux commands-Adding and deleting changes

Increase:

mkdir [选项] DirName
mkdir -p aa/bb;//Create a BB directory under the AA directory. If the AA does not exist, create the
mkdir -m 777 bb.txt;//Create a Bb.txt file, add permissions 777

Option to consider
-P: The parent directory that created the path does not exist, and the parent directory is created
-M: Create files to set permissions at the same time

By deleting:

1) Delete the document:
rm file;//delete the file, the system asks whether to delete
rm -f filename;//forced deletion of files, no queries

2) Delete the catalogue: rm -r directoryName ;

3) by deleting the catalogue and the catalogue everything:rm -rf dir

4) Delete the log file:rm -f *.LOG*

syntax : RM [Options] file, where options can be:
-for --force //Ignore nonexistent files, force Delete, no hint.
-ior --interactive ////Interactive Delete
-ror --recursive //recursive Delete (in this directory) all files and directories
-vor --verbose //detailed display of the steps used in the common parameters

Note : cannot be retrieved after deletion, do not shake hands

Change:

Change folder name: mv tomcat-7.0.2 tom7 ;
Change the contents of the file:vi a.txt

Check:

Check Linux version:lsb_release -a
To view the contents of a file:cat a.txt

Pressure:

. GZ Decompression/pressure:
tar zxvf filename.tar.gz
tar zcvf filename.tar.gz dirName

Linux commands-Adding and deleting changes