hello ,
i am running Red Hat Linux 7.0 on my machine and i noticed that
there is something wrong with the COMM commmand. it does not produce the
display on the standard output i.e monitor. let me explain the type of
operation that i have used it in .
i have two simple text files FILE1 and FILE2 with the following
contents
FILE1--ccode/server.c
ccode/server1.c
FILE2--ccode/server1.c
instead i have COMM in a script which COMM's these FILE1 and FILE2 . but
before this happens,, FILE1 and FILE2 are populated via the grep -rl
pink ccode > FILE1 such type code in the same script . so u see the
connection , grep redirects its o/p to FILE1 and also a quite similar grep
redirects to FILE2 and then i COMM these files.
now when i COMM it
THE SCRIPT IS LIKE THIS
grep -rl pink ccode > FILE1
grep -rl animals ccode > FILE2
comm -12 FILE1 FILE2
it gives me no output . so i ran COMM on the command line $ comm -12
FILE1 FILE2 with no result . but running the command COMM at the
command line on a HP-UX machine with the same two files FILE1 and FILE2
gave me the correct output. (i.e ccode/server1.c )!! which is correct.
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