I'm not getting the syntax correct to change a line only on the first occurrence:
I've tried to change only the first match and I've tried to change the from the second match forward
sed 's/<B>PT#/<tr><td class=\"pt1\" width=\"40%\"><B>pt#/1' $file > tmpfile.html
sed 's/<B>PT#/<tr><td class=\"pt1\"><B>pt#/2g' $file > tmpfile.html
but neither is working correctly for me. Help appreciated.
---------- Post updated at 08:34 AM ---------- Previous update was at 07:42 AM ----------
This worked
sed '1,/RE/s//to_that/'
T