Shell base 2-History command and Tab/alias and shortcut keys __script-perl

Source: Internet
Author: User

Normally, the command is written when it needs to be exited, and the parameter-W is immediately written.

This profile is an important environment variable configuration file for Linux.

Command completion:

After you enter user, the two-time tab key lists all files that start with user.

This alias will fail after the reboot, so open the. bashrc file for modification.

I have defined a ll command, which is the following one, with color.

Print out the environment variable, the front plus a $ is the environment variable

This environment variable is separated by a colon, which is found by next to each other.

Bash internal commands are from the shell and we can't find it ourselves.

This is because the CD command is brought from the shell.

It is written in uppercase, but is used directly on the line; it does not need to be cased.

Related Article

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.