I get his error when using sed:
sed 's/H/q' myout00
sed: -e expression #1, char 5: unterminated `s' command
cat myout00:
Fname Lname Net Algo OS NSec Sof
Sadegh SamanI 15 20 14 19 15
Arash Jami 12 20 20 18 12
Hamed Sadeghi 13 19 16 17 13
NIma Ehsani 20 20 17 18 20
If you want to replace
H
withq
run it this way:You didn't terminate the substitution command.