add line at beginning of file unix
sed -i '1s/^/your text\n/' file #Note the addition of the "\n" for concluding the new line after the insertionadd line at beginning of file unix
sed -i '1s/^/your text\n/' file #Note the addition of the "\n" for concluding the new line after the insertionadd line to beginning of file shell script
$ sed -i '1s/^/added text /' fileCopyright © 2021 Codeinu
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