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Replace text with sed

Replace text with sed

sed -i 's/old-text/new-text/g' input.txt

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Sed replace in file

sed -i 's/foo/bar/g' hello.txt

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Source: cyberciti.biz

Sed replace with variable

Just concatenate var '"$var"' to replace values string in sed command:
$ sed -i 's/string_to_replace/'"$var"'/g' file_to_replace.txt

2

Replace using sed

#on my mac
sed -i -e 's/old-text/new-text/g' text.txt

2

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