Bash summary in Linux-IT dream-qi-sharing

1. command line editing function ctrl + a: Jump to the beginning of the line ctrl + e: jump to the end of the line ctrl + u: Delete the content from the cursor to the beginning of the line ctrl + k; delete the content from the cursor to the end of the line ctrl + arrow: one word jump left or right at a time 2. File Name wildcard *: any characters of any length? : Any single character (only match one character) []; matches specified range 1, CommandRow editing
C TrL + a: Jump to the beginning of the line
Ctrl + e: jump to the end of the row
Ctrl + u: Delete the content from the cursor to the beginning of the line
Ctrl + k; Delete the content from the cursor to the end of the line
Ctrl + arrow
2. wildcard file name
*: Any character of any length
? : Any single character (only match one character)
[]; Match any single character in the specified range, such as [a-z], [abc], [^ AB Cd] Except for the abcd
[: Keyword:]
Use man 7 glob to View Details
Eg:
Keyword includes [: lower:] Any lowercase letter [: upper:] Any uppercase letter [: alpha:] Any letter [: pu NcT:] match any punctuation marks
[: Space:] space [: LnUm:] match any letter [: di Git:] Number [: blank:] space and tab key
[: Xdigit:] matches any hexadecimal number
Eg: Ls/Etc/[[: lower:] [[: degit:] * // display the file with lowercase letters under etc and any matching length with a number
3. Command Line completion and path completion
Command Line completion: find in the echo $ PATH output PATH
Path completion: search in the specified parent directory
4. Expand the command line
~ : Expand to the Home Directory of the corresponding user
{} Create multiple files or directories Mkdir-Pv x/{y, z/{1, 2 }}
Mkdir-pv {x, y }_{ 1, 2} mkdir-pv myroot/{, etc/{, rc. d, init. d}, usr/{, local}, var, sys, mnt, m EdIa, lib, boot/{, grub }}

5. Command Extension
$ (): Command reference eg: mkdir $ ( Date"+ % Y-% m-% d-% H-% M-% S ")
''Eg: ls-l' Which Passwd`
File' Cat/Etc/shells 'or file $ (cat/etc/shells)
TouchA \ * B a \ B \ $ AB \? B can create a * B, a B, $ AB,? Four files B