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Acess Control List
Access Control List (ACL) is a more flexible and fine-grained permission management mechanism, us...
Meme
Introduction
File System Types You can use the -T option of the df command to view the Type field. df -Th Fi...
Environment Variables
SHELL The current shell in use. printenv SHELL /bin/bash HOME The path to the user's home dir...
Shell Startup Process
Startup Methods The startup methods of Shell will affect the loading process of environment vari...
Shebang
Shebang is a special symbol in Unix and Unix-like operating systems, composed of the characters #...
Concept
Origins The environment variables in Linux originated from the design requirements of early UNIX...
TOP
man top top - display Linux processes The top command defaults to sorting processes by CPU usag...
Terminate Process
Kill Command It's actually a tool for sending signals to processes, not necessarily killing them...
PS
PS stands for Process Status. man ps ps - report a snapshot of the current processes. Style ...