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I am trying to find out if it is possible to edit a file in a single sed command without manually streaming the edited content into a new file and then renaming the new file to the original file name. I tried the -i option but my Solaris system said that -i is an illegal option. Is there a different way?
947
There is a huge pool of commands available for Ubuntu and sed command utility is one of them; the sed command can be used to perform fundamental operations on text files like editing, deleting text inside a file.
s/search/replace/g — this is the substitution command. The s stands for substitute (i.e. replace), the g instructs the command to replace all occurrences.
Regular expressions are used by several different Unix commands, including ed, sed, awk, grep, and to a more limited extent, vi.
The -i option streams the edited content into a new file and then renames it behind the scenes, anyway.
Example:
sed -i 's/STRING_TO_REPLACE/STRING_TO_REPLACE_IT/g' filename while on macOS you need:
sed -i '' 's/STRING_TO_REPLACE/STRING_TO_REPLACE_IT/g' filename If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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