change characters

[juno2]

is there any command that can change all the words (eg. yes ) in a file to other words ( eg. no ) ?

# vi abc.txt

1. yes
2. yes
3. yes

change to

vi abc.txt
1. no
2. no
3. no

[Rajeev Shukla · Accepted solution]

Yes,run
sed 's/yes/no/g' abc.txt >abc1.txt
then move the fine back
mv abc1.txt abc.txt


Cheers
Rajeev

[Michael Tully]

Just a slightly different version from inside the file. This is for occurances on all lines. If it is only the first occurance, the drop the 'g' at the end.

# vi abc.txt

:1,$s/yes/no/g
ESC
:x!

[juno2]

thx all

[Stuart Abramson_2]

You should assign points to the above answerers.

[Paddy_1]

tr 'yes' 'no' < abc.txt > new_abc.txt

[H.Merijn Brand (procura]

1. All above change *every* occurance of 'yes' to 'no', also in 'abcyesdo'
2. The 'tr' example is plain wrong, because it translates *characters* and not patterns:

lep a5:/pro/tu/lep/4gl/sql 115 > cat | tr 'yes' 'no'
aloha
aloha
yes, I am
nos, I am
no, I'm not
no, I'm not
yyyyy
nnnnn
ebebebe
obobobo
enenene
ononono
lep a5:/pro/tu/lep/4gl/sql 116 >

3. use (a safe re in) perl

perl -pi -e's/\byes\b/no/g' my_file

Enjoy, have FUN! H.Merijn