"My Linux, I am the master" Software testing skills of Linux

Software testing skills include: Use case design, testing tools, database,Linux, programming language.

Not long ago, just changed jobs, so, interviewed a lot of companies, the main interview skills:Linux and database ratio is 1:2.

So, today, let's talk about the software testing skills of Linux.

Some basic instructions, there is not much to say, mainly about some testers often use some of the instructions:

First, Package:tar command

Parameters:

-C : Create a compressed file parameter directive ( the meaning of create);

-x: Unlock the parameter instructions for a compressed file!

-T : View The files inside the Tarfile!

in particular, in the release of the parameters, c/x/t can only exist one! Cannot exist at the same time! Because it is not possible to decompress at the same time.

-Z : Do you have the properties of gzip at the same time? i.e. do I need gzip compression?

-j : Do you have bzip2 properties at the same time ? i.e. is it necessary to compress with bzip2 ?

-V: Files are displayed during compression! This is commonly used, but is not recommended for use in the background execution process!

-F : Use the file name, please note, after F to immediately answer the file name Oh! Don't add any more arguments!

For example, using " tar-zcvfp tfile sfile" is the wrong way to write

" tar-zcvpf tfile sfile" Just right!

-P : Use original file properties (attributes are not changed according to user)

-P : You can use absolute path to compress!

-N : Newer than next date (YYYY/MM/DD) will be packaged in the new file!

--excludefile: In the process of compression, do not package FILE!

Example:

Example One: package All the files in the/etc directory into/tmp/etc.tar

[[Email protected]~]# tar-cvf/tmp/etc.tar/etc

Unpack all files in the/etc directory under the ETC directory

[Email protected]~]# tar xvf/tmp/etc.tar/etc

Second, the Three Musketeersof Linux: grep,sed,awk

Specific examples and usage can be seen in the Old boy blog:

An example of the Three Musketeers ' awk killing skill:http://oldboy.blog.51cto.com/2561410/950730

A case study of the sed of the Three Musketeers of Linux: http://oldboy.blog.51cto.com/2561410/949365

the difference betweengrep,egrep,fgrep: http://ericsam.blog.51cto.com/4479540/1563687

To learn more about Linux, search for ' old boys '. I am a loyal fan of the old boy.

"My Linux, I am the master" Software testing skills of Linux