Comm giving unexpected results

Shell Programming and Scripting
1

Hi
I am comparing two files with comm -13 < (sort acc11.txt) < (sort acc12.txt) > output.txt
purpose: Get non matching records which are in acc12 but not in acc11...
TI am getting WRONG output.

Is there any constraints with record length with comm? The above files are the two consective
dumps of tables ( have clob data) of two different day.

2

Show your input and expected output.

3

See if this helps (From the man pages of comm):

The following options shall be supported:
    -1     Suppress the output column of lines unique to file1.
    -2     Suppress the output column of lines unique to file2.
    -3     Suppress the output column of lines duplicated in file1 and file2.