First, the command history and command completion
1.1 Command history
1.2 call command history
1.3 tab key completion
Second, the commonly used shortcuts and command aliases
2.1 Command Aliases
2.2 Command execution order
2.3 make permanent aliases
2.4 Delete alias
2.5Bash commonly used shortcut keys
Third, the input and output redirection
3.1 Standard Input Output
3.2 output redirection
3.3 input redirection
Fourth, the multi-character command sequence execution with the conduit
1, multi-command execution order
Case 1:
Case 2:
2. pipe symbol
Case:
GrpE
Five wildcard and other special symbols
1, Tsuhaifu
2.Bash other special symbols
The difference between single and double quotes are: Case 1
Case 2: Anti quotes and $ ()