sed replace in file
sed -i 's/foo/bar/g' hello.txtsed replace in file
sed -i 's/foo/bar/g' hello.txtsed 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.txtreplace using sed
#on my mac
sed -i -e 's/old-text/new-text/g' text.txtsed replace with variable
For using match in sed replacement, just border it with '\(' and '\)':
echo Before123 | sed 's/Before\([0-9]*\)/\1After/g'
123After # number is matched withtin '\( \)' and replaced in '\1'
Example with 2 match replacements
echo a_b | sed 's/\(^.*\)_\(.*$\)/first is \1 and \2 is after/g'sed replace with variable
Use double quotes to make the shell expand variables while preserving whitespace:
sed -i "s/$var1/ZZ/g" "$file"sed replace with variable
sed -i "s/$var1/ZZ/g" "$file"Copyright © 2021 Codeinu
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