Join

sort <no options> | join <no options> doesn't work:

Important: FILE1 and FILE2 must be sorted on the join fields.  E.g.,
use ` sort -k 1b,1 ' if `join' has no options, or use ` join -t  ' if
`sort' has no options.

So you could try:

sort flash_int_list.txt | join -t '' finish_comm - > t1

or:

sort -k 1b,1 flash_int_list.txt | join finish_comm - > t1

[1]

-e는 -o하고 같이 써야 제대로 나온다.

$ join -a 1 -a 2 -e'-' -o '0,1.2,2.2' sfile1.txt sfile2.txt # -o auto 해도 됨. -a 반드시 있어야 -e 의미있음 주의.
bar 2 -
boo - z
foo 1 x
qux 3 y

http://stackoverflow.com/a/984997/766330

탭 구분자

join file1 file12 -t $'\t'

http://stackoverflow.com/a/1722424/766330