change all occurences of a character

[Guest_imported]

hi!

how to change occurences of one character in a file to another character?

example, replace all ";" sign with "=" sign???

thank you!
sinya

 

[kasparov]

This will change all occurrences - remove the 'g' to change just the first one on each line.

sed 's/;/=/g' < textfile

Chris

 

[SteveR77]

In the case of needing to replace most but not all of the occurances.

Add a c to the end of the command that Chris provided

sed 's/;/=/gc' <text file>


The c is the option for confirm so you will be prompted for each change.

 

[dchoulette]

Also:

tr ';' '='

For more info:

man tr

 

[anatazi]

WHAT IF YOU WANTED TO WRITE THE OUTPUT TO ANOTHER FILE INSTEAD OF STANDART OUTPUT? AND STILL KEEP THE ORIGINAL FILE INTACT.
DO I JUST ADD THE > FILENAME AFTER THE SED COMMAND
THANKS
5SORRY ABOUT THE CAPS? MY CAPS KEY IS STUCK)

 

[CaKiwi]

yes CaKiwi