Erkan Yanar wrote:
> $ echo -e "a b c d"| tac --separator=" "
> d
> c b a
>
> Why is tac only using the first space as separator?
It is using all of the spaces. See that "c b a" is reversed. But the
problem is that the "d" is not terminated.
printf "a\nb\nc\nd\n" | tac | od -c -tx1
0000000 d \n c \n b \n a \n
64 0a 63 0a 62 0a 61 0a
All good because every record has a terminator.
Try this to add a space terminator:
printf "a b c d " | tac --separator=" " ; echo
d c b a
printf "a b c d " | tac --separator=" " | od -c -tx1
0000000 d c b a
64 20 63 20 62 20 61 20
Bob
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