Linux Fundamentals 13

1. Edit     x: Delete the character      #x at the cursor: Delete the # characters that begin at the beginning of the cursor      D: Delete command         dd: Delete the entire line at the cursor           #d: Delete the # line         2 the cursor in place. Last line mode     start,end   eg: 3,4  10,+9   &nbsp.: Indicates the row of the cursor     $: last line      .,$-2: Current to 3rd line     /pat1/,/pat2/     %: full-text traversal     c: Change     cc:     #cc:     R: Replace the character at the line where the cursor is     y: (Yank) copy     yy:     #yy:     p: (past) Paste      copy delete entire row          P: Paste below the line of the cursor         p: Paste at the top of the line where the cursor is located      copy Delete non-entire row         p: Paste at the cursor location         p: Paste at the front of the cursor          3. Revocation     u:undo     #u:     ctrl+r  revocation of the previous revocation     4. Turn screen     ctrl+f : Turn one screen at the end of the file      CTRL+B&NBSP: Turn one screen to the head of the file     ctrl+d : Turn half screen at the end of the file     ctrl+u  : Turn half screen     enter    k    5 to file header. Find      /KEYWORD&NBSP: Look down for the first string matching     ?keyword : Find the first matching string up      N       &NBSP: Find Next matching word down     N        &NBSP: Look up the next matching word 6.vim visualization mode     v: Select by the area of the cursor      V: Select rectangular block      7. The definition of the window's properties     set nu : Display line number      set nonu&nbsp: Turn off display     set ai : Auto indent     set noai : Turn off Auto indent     SET IC&NBSP: Ignore case     set noic : Turn off Ignore case      set sm  (Show match)  : Display the corresponding brackets     set nosm : Turn off display     SYNTAX OFF&NBSP: Turn off syntax highlighting     syntax on  : Open Syntax highlighting     set hlsearch : Search highlighting     set nohlsearch : Turn off search highlighting     8.vim Profiles      Global:/etc/vimrc     Personal: ~/.VICRC     9. Find replacement    &nbsp: Address delimitation s/Find mode/Replace with content/gi          delimiter can be customized for s after the first character         g:blobal         i:ignore-case        & : Used to refer to all the contents of the previous match in the content part of the replacement      eg: .,[email protected]/etc/[email protected]/etc/[email protected]          1,[email protected]^[^#].*@#&@g (indicates lines preceded by # 1 to 30 lines not # # # # #)            10.bash file test      monocular test         -E FILE&NBSP: Test file exists          -A FILE&NBSP: Test whether the file exists         -f /path/to/ File: Test for normal file         -d /path/to/file: Test for catalog file          -b /path/to/somefile: Test file exists and is a device block file          -c /path/to/somefile: Test file exists and is a character device file         - h | -l /path/to/somefile  test file exists and is a symbolic link file          -p /path/to/somefile: Test file is storedIn and for pipe file         -r /path/to/somefile: Test whether its valid users have read access to this file          -s /path/to/somefile: Test file exists and is a socket file          -s /path/to/somefile: Test file exists and is not empty          -w        -x               Binocular Testing          file1 -nt  file2  test if file1 is newer than file2

Linux Fundamentals 13