0 Brother's Linux private cuisine--14th chapter: Bash Shell

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Potatoes:

Station B:

Directory of this chapter:

1. Bash Shell
1.1 What is a shell? (We communicate with the kernel core through the shell, enabling kernel to manipulate the hardware)
1.2 System shell and/etc/shells function (Cat/etc/shells, you can see the shell of the current computer)
1.3 Bash Shell features (1.command editing ability, is the memory you write commands press the up and down keys to switch. 2. command and file completion function, is the TAB key completion. 3. command Aliases (alias) to set the function alias command. Here are some more )
1.4 Bash shell built-in command: type (use the type command to see if your command is Bash internal or external, or renamed)
1.5 Release of Instructions
2. Shell's variable function
2.1 Use and setting of variables: ECHO, variable setting rules, unset
What is the purpose of 2.2 variables?
2.3 Function of environment variables: env, some important environment variables, set, export
2.4 Language file variables (locale)
2.5 Valid range of variables:
2.6 variable keyboard reads, arrays and declarations: Read, declare, array
2.7 Restrictions on file systems and procedures: ulimit
2.8 Other additional variable functions
3. Command aliases with historical commands:
3.1 Command alias settings: Alias, Unalias
3.2 Historical order: history, Histsize
4. Bash Shell Usage Environment:
4.1 Absolute path vs. relative path
4.2 Login Message Display data:/etc/issue,/ETC/MOTD
4.3 Environment profiles: BASHRC, ~/.BASHRC, ~/.profile, PROFILE...,/ETC/INPUTRC, source
4.4 Terminal Environment setting: Stty, set
45,000 with characters with special symbols:
5. Data flow redirection (REDIRECTE)
5.1 What is data flow redirection?
5.2 Judgment basis of the order execution:; , &&, | |
6. Pipeline command (pipe):
6.1 Capture command: Cut, grep
6.2 Sort Commands: Sort, WC, uniq
6.3 Bidirectional re-orientation: Tee
6.4 Character Conversion commands: TR, col, join, Paste, expand
6.5 Split command: Split
6.6 parameter substitution: Xargs
6.7 about the use of the minus sign-

Shell

The benefits of Bash

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0 Brother's Linux private cuisine--14th chapter: Bash Shell