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66. Process Management - top and htop

Sun Apr 7 2019
Linux Administrator: Simple But Profound
785 words 4 mins read

We can view the dynamic information of all processes through two tools, top and htop, which support interactive viewing of processes.

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65. Process Management - ps

Sat Apr 6 2019
Linux Administrator: Simple But Profound
1012 words 5 mins read

We can view snapshot information for the current processes through the ps command.

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64. Process Management - pgrep, pkill and pidof

Fri Apr 5 2019
Linux Administrator: Simple But Profound
548 words 3 mins read

We can view the process through the pgrep command, and we can signal the process through the pkill command.

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63. LVM - Logical Volume Management

Thu Apr 4 2019
Linux Administrator: Simple But Profound
364 words 2 mins read

Through the logical volume management technology provided by Linux, we can flexibly manipulate the file systems in every volume.

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62. RAID - Redundant Array of Independent Disks

Wed Apr 3 2019
Linux Administrator: Simple But Profound
850 words 4 mins read

With RAID technology, we can combine multiple disks in some way to improve performance or reliability.

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61. Disk Management - Tools

Tue Apr 2 2019
Linux Administrator: Simple But Profound
1439 words 7 mins read

Linux provides us with a lot of tools to manage disks. These tools allow us to view disk usage and partition the drive.

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60. Disk Management - Concept

Mon Apr 1 2019
Linux Administrator: Simple But Profound
896 words 5 mins read

Data is the most critical thing in the system, and the disk is the necessary hardware device to persist the data.

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59. Advanced Text Processing - Awk's Basic Usage

Sun Mar 31 2019
Linux Administrator: Simple But Profound
862 words 5 mins read

Awk is a flexible pattern matching, text processing and line-oriented language, Linux provides us with an implementation version of it, gawk.

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58. Advanced Text Processing - Stream Editor (sed)

Sat Mar 30 2019
Linux Administrator: Simple But Profound
512 words 3 mins read

We can use the sed stream editor provided by linux to filter and convert text line by line.

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57. Advanced Text Processing - grep, egrep

Fri Mar 29 2019
Linux Administrator: Simple But Profound
1090 words 6 mins read

We can use the grep tool provided by linux to find matching rows based on either the basic or extended regular expressions.

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56. Advanced Text Editor - Vim's Visual and Input Mode

Thu Mar 28 2019
Linux Administrator: Simple But Profound
277 words 2 mins read

In addition to the last line mode and edit mode, vim also provides us with two other modes: view mode for copying, pasting, deleting selected content, and insert mode to add and delete text.

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55. Advanced Text Editor - Vim's Edit Mode

Wed Mar 27 2019
Linux Administrator: Simple But Profound
991 words 5 mins read

In addition to last line mode, vim also has edit mode, both of which complement each other.

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54. Advanced Text Editor - Vim's Last Line Mode

Tue Mar 26 2019
Linux Administrator: Simple But Profound
619 words 3 mins read

Through the last line mode of vim, we can easily execute some commands, such as switching between files, saving files, moving the cursor, deleting and replacing text and so on.

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53. Advanced Text Editor - Vim's Common Usage

Mon Mar 25 2019
Linux Administrator: Simple But Profound
693 words 4 mins read

The Vim text editor provides instructions that make it easy for us to operate, through which we can open files in a variety of ways.

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52. Find Utilities - Advanced Files Searching

Sun Mar 24 2019
Linux Administrator: Simple But Profound
712 words 4 mins read

The find command provides some useful options for finding files or directories based on creation time, modification time, owner, group, permissions, type, size, etc.

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51. File Permissions - File Attributes

Sat Mar 23 2019
Linux Administrator: Simple But Profound
930 words 5 mins read

To make our files more secure, Linux provides a feature called file attribute. By configuring the attributes of the file, we can specify whether it is read-only or undeleted, or in other statuses.

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50. File Permissions - Filesystem Access Control List

Fri Mar 22 2019
Linux Administrator: Simple But Profound
1657 words 8 mins read

Although the chmod command is powerful enough, it cannot assign permissions more finely, so Linux provides some flexible commands to specify permissions for a particular user or group. Starting from Linux kernel 2.6, we can allocate more granular permissions to users or groups.

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49. User Management - su, sudo

Thu Mar 21 2019
Linux Administrator: Simple But Profound
805 words 4 mins read

We can switch between users through the su and sudo commands. Also, we can use these two commands to perform certain command operations with the privileges of other users.

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48. User Management - Communications Between Users

Wed Mar 20 2019
Linux Administrator: Simple But Profound
619 words 3 mins read

Linux provides users with tools to communicate with each other. Some can send messages to a specified user; some can send a group of messages; some can even send content as an email to a user’s inbox list.

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47. User Management - Login Details & Record

Tue Mar 19 2019
Linux Administrator: Simple But Profound
615 words 3 mins read

Linux provides some commands to view the user: login status, login record, login attempt log, user last login log and so on.

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