Linux | tar, bc, uname commands

Linux | tar, bc, uname commands

tar command【Important】

tar [-cxtzjvf] files and directories... Parameters:

• -c: Parameter command to create a compressed file (meaning create);
• -x: Parameter command to unpack a compressed file!
• -t: View the files in tarfile!
• -z: Does it also have the attributes of gzip? That is, do I need to use gzip compression?
• -j: Does it also have the attributes of bzip2? That is, do I need to use bzip2 compression?
• -v: Display files during compression! This is commonly used, but it is not recommended to be used in background execution processes!
• -f: Use the file name. Please note that the file name must be followed immediately after f! Don't add any more parameters!
• -C: Extract to the specified directory

• According to the above options we start using

tar -cvzf test.tgz 111

• These four options are compression, which are more commonly used.

• There are also 4 options for decompression

tar -xzvf test.tgz -C 222

• Here-C is the specified path~~

There are many options for tar here, so I won’t introduce them one by one here. There are only a few commonly used ones. Just look them up when you need to use them, and then slowly remember them~~

bc instruction

The bc command can easily perform various operations

• There is nothing to say about this command. Just enter it directly. Pressctrl + d to exit~~

uname -r command

uname -r

Syntax: uname [option]
Function: uname is used to obtain information about the computer and operating system information.
Additional explanation: uname can display basic information such as the version of the operating system used by the Linux host and the name of the hardware.
Common options: -a or –all output all information in detail, followed by kernel name, host name, kernel version number, kernel version, hardware name, processing Device type, hardware platform type, operating system name

• This command is also very simple, that is, you can use it directly. You can just check the version when needed~~