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Wednesday, January 23, 2013

Useful VI search and Replace Linux commands

Search

/word
Search word from top to bottom
?word
Search word from bottom to top
/jo[ha]n
Search john or joan
/\< the
Search the, theatre or then
/the\>
Search the or breathe
/\< the\>
Search the
/\< ¦.\>
Search all words of 4 letters
/\/
Search fred but not alfred or frederick
/fred\|joe
Search fred or joe
/\<\d\d\d\d\>
Search exactly 4 digits
/^\n\{3}
Find 3 empty lines
:bufdo /searchstr/
Search in all open files

Replace

:%s/old/new/g
Replace all occurences of old by new in file
:%s/old/new/gw
Replace all occurences with confirmation
:2,35s/old/new/g
Replace all occurences between lines 2 and 35
:5,$s/old/new/g
Replace all occurences from line 5 to EOF
:%s/^/hello/g
Replace the begining of each line by hello
:%s/$/Harry/g
Replace the end of each line by Harry
:%s/onward/forward/gi
Replace onward by forward, case unsensitive
:%s/ *$//g
Delete all white spaces
:g/string/d
Delete all lines containing string
:v/string/d
Delete all lines containing which didn’t contain string
:s/Bill/Steve/
Replace the first occurence of Bill by Steve in current line
:s/Bill/Steve/g
Replace Bill by Steve in current line
:%s/Bill/Steve/g
Replace Bill by Steve in all the file
:%s/\r//g
Delete DOS carriage returns (^M)
:%s/\r/\r/g
Transform DOS carriage returns in returns
:%s#<[^>]\+>##g
Delete HTML tags but keeps text
:%s/^\(.*\)\n\1$/\1/
Delete lines which appears twice
Ctrl+a
Increment number under the cursor
Ctrl+x
Decrement number under cursor
ggVGg?
Change text to Rot13

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