#To check the running process:
#netstat - Print network connections, routing tables, interface statistics, masquerade connections, and multicast memberships
netstat -tap
top - display top CPU processes
vi (aka vim) tutorial, tips, tricks and useful commands
Where grep came from (RE being Regular Expression):
:g/RE/p
#Delete lines 10 to 20 inclusive:
:10,20d
#or with marks a and b:
:'a,'bd
#Delete lines that contain pattern:
:g/pattern/d
#Delete all empty lines:
:g/^$/d
#Delete lines in range that contain pattern:
:20,30/pattern/d
#or with marks a and b:
:'a,'b/pattern/d
#Substitute all lines for first occurance of pattern:
:%s/pattern/new/
:1,$s/pattern/new/
#Substitute all lines for pattern globally (more than once on the line):
:%s/pattern/new/g
:1,$s/pattern/new/g
#Find all lines containing pattern and then append -new to the end of each line:
:%s/\(.*pattern.*\)/\1-new/g
#Substitute range:
:20,30s/pattern/new/g
#with marks a and b:
:'a,'bs/pattern/new/g
#Swap two patterns on a line:
:s/\(pattern1\)\(pattern2\)/\2\1/
#Capitalize the first lowercase character on a line:
:s/\([a-z]\)/\u\1/
#more concisely:
:s/[a-z]/\u&/
#Capitalize all lowercase characters on a line:
:s/\([a-z]\)/\u\1/g
#more concisely:
:s/[a-z]/\u&/g
#Capitalize all characters on a line:
:s/\(.*\)/\U\1\E/
#Capitalize the first character of all words on a line:
:s/\<[a-z]/\u&/g
#Uncapitalize the first character of all words on a line:
:s/\<[A-Z]/\l&/g
#Change case of character under cursor:
~
#Change case of all characters on line:
g~~
#Change case of remaining word from cursor:
g~w
#Increment the number under the cursor:
#Decrement the number under the cursor:
#redraw:
#Turn on line numbering:
:set nu
#Turn it off:
:set nonu
#Number lines (filter the file through a unix command and replace with output):
:%!cat -n
#Sort lines:
:%!sort
#Sort on column #69:
:sort /.*\%69v/
#Sort and uniq:
:%!sort -u
#Read output of command into buffer:
:r !ls -l
#Refresh file from version on disk:
:e!
#Open a new window:
n
#Open a new window with the same file (split):
s
#Split window vertically:
v
#Close current window:
c
:q
#Make current window the only window:
o
#Cycle to next window:
w
#Move to window below current window:
j
#Move to window above current window:
k
#Move to window left of current window:
h
#Move to window right of current window:
l
#Set textwidth for automatic line-wrapping as you type:
:set textwidth=80
#Turn on syntax highlighting
:syn on
#Turn it off:
:syn off
#Force the filetype for syntax highlighting:
:set filetype=python
:set filetype=c
:set filetype=php
#Use lighter coloring scheme for a dark background:
:set background=dark
#Htmlize a file using the current syntax highlighting:
:so $VIMRUNTIME/syntax/2html.vim
#Or, htmlize from a command prompt:
#in 2html.sh put:
#!/bin/sh
vim -n -c ':so $VIMRUNTIME/syntax/2html.vim' -c ':wqa' $1 > /dev/null 2> /dev/null
#Now just run: shell> 2html.sh foo.py
# change the ownership of the folder
# $ sudo chown -R yourusername:nameofthegroup folder
$ sudo chown -R arman:root /var/www/
Document originally from http://www.cs.ualberta.ca/~luca/tricks.vim.html
updated and maintained by Greg Lawler
nerdycat posted this
