Use tail to view software installation process

When I was using Perlbrew to install Perl, I learned a trick, hehe.

Sometimes, when installing the software, especially when the manual installation, there is no hint information, can only wait, in fact, you can use the tail command to track the tail of the installation log, to observe the installation process.

Specific Description:

For example: I installed Perl with Perlbrew:

Perlbrew Install perl-5.26. 1

At this time, Perlbrew prompt for a long time to install, you can check the installation process through tail:

while. You can run the following command on another shell to track the status:  -F ~/perl5/perlbrew/build.perl-5. . 1. Log

Tail command Explanation: The default is to print the last 10 lines to the standard output.

Print  The last all FILE to standard       output.   With more       than one fileeach with a header giving the file name. No read standard input.                 Mandatory Arguments to Long options is  Mandatory    for short Options       too.

The meaning of-f is to output additional data when the file grows.

-F,--follow[={name|  Descriptor}]              output appended data as the file grows;

Use tail to view software installation process