A little-known and practical Linux Command Encyclopedia __linux

A little-known and practical Linux Command Encyclopedia

The Linux command line attracts most Linux enthusiasts. A normal Linux user typically has about 50-60 commands to handle daily tasks. Linux commands and their transformations are the most valuable treasures for Linux users, Shell scripting programmers, and administrators. Some Linux commands are rarely known, but they are handy and useful, whether you're a novice or an advanced user. The purpose of this article is to introduce some of the less-known Linux commands that will effectively help you manage your desktop/server. 1. sudo!! Command Run without a specific input sudo command, an error with no permissions is given. Well, you don't need to rewrite the entire command, just type '!! ' You can grab the last command. 10 20 30 40 50 60   1. $ apt-get Update 2. 3. E:could not open lock File/var/lib/apt/lists/lock-open (13:permission denied) 4. E:unable to lock DIRECTORY/VAR/LIB/APT/LISTS/5. E:could not open lock File/var/lib/dpkg/lock-open (13:permission denied) 6. E:unable to lock the Administration directory (/var/lib/dpkg/), are for you root? - ········· 10 20 30 40 50 60 01.