Code:
awk ' BEGIN{FS="= "}
/Condition/ {cond = $2 ; print $0 ;next}
/^$/ { print cond ; next}
{print $0 " " cond}
' "file"
output:
Code:
# ./test.sh
Condition = XXX
XXX
Header Line 1 XXX
Header Line 2 XXX
XXX
Station Data XXX
1 5.43 XXX
2 6.43 XXX
3 7.8 XXX
4 450 XXX
5 650 XXX
XXX
Condition = YYY
YYY
Header Line 1 YYY
Header Line 2 YYY
YYY
Station Data YYY
1 654 YYY
2 987 YYY
3 875 YYY
4 874 YYY
5 678 YYY
YYY
Condition= ZZZ
ZZZ ZZZ
