Sed
Sed is a stream editor
Allows to replace some text
Simple example:
# Replace all occurences of John to Nick
sed 's/John/Nick/g' input.txt > output.txt
Example with regular expression:
sed -r 's/J[a-z]*n/Nick/g' input.txt > output.txt
Sed is a stream editor
Allows to replace some text
Simple example:
# Replace all occurences of John to Nick
sed 's/John/Nick/g' input.txt > output.txt
Example with regular expression:
sed -r 's/J[a-z]*n/Nick/g' input.txt > output.txt