Adicionar linha no início do arquivo Unix
sed -i '1s/^/your text\n/' file #Note the addition of the "\n" for concluding the new line after the insertion
Big Feeeeeb
sed -i '1s/^/your text\n/' file #Note the addition of the "\n" for concluding the new line after the insertion
$ sed -i '1s/^/added text /' file