Find out the different lines of two text files

using the shell to find out two different lines of text files The method of the experiment is as follows: The first type: The Comm command method is as follows: Comm-3file1 File2 One problem is that if two files are sorted differently, there will be problems. The second: the grep command command is as follows: grep-vWF file1 file2 statistics file1 not, file2 in some of the specific use of the environment to Supplement, today first recorded here. Reference Documentation:1, find the same and different contents of two files: http://blog.csdn.net/shuckstark/article/details/78721762, Comm command: http://michaels.blogbus.com/logs/44427299.html3, Linux grep usage: http://blog.csdn.net/greytree/article/details/4285324, linux grep command: TTP://www.cnblogs.com/end/archive/2012/02/21/2360965.html

find out two different data for a file #!/bin/sh function _diffab () {x=0 forIinch' Cat $1`; Do         forJinch' Cat $2`; Do                if[$i = =$j];then x=1                         Break; Fi Doneif[$x-ne1];then echo $i fi x=0Done }if[" $"==""] || [" $"==""];thenecho"Use like this : $ Filea Fileb"Else{_diffab $1$2_diffab $2$1}fi

$ comm--Helpusage:comm [OPTION] ... FILE1 file2compare sorted files FILE1 and FILE2 line by line. With no options, produce three-column output.  Column one containslines unique to FILE1, column of contains lines unique to File2,and column three contains lines common  to both files. -1Suppress column1(lines unique to FILE1)-2Suppress column2(lines unique to FILE2)-3Suppress column3(lines that appearinchboth files)--check-order Check that the input iscorrectly sorted, evenifAll input lines is pairable--nocheck-order DoNot check that the input iscorrectly sorted--output-delimiter=STR separate columns with str--help Display ThisHelp and exit--version output version information and exitnote, comparisons honor the rules specified by ' Lc_collate'.Examples:comm- Afile1 file2 Print only lines presentinchboth File1 and file2. Comm-3File1 file2 Print LinesinchFile1 notinchFile2, and vice versa. Report Comm Bugs to Bug-[Email Protected]gnu coreutils home page://www.gnu.org/software/coreutils/>General HelpusingGNU Software: //www.gnu.org/gethelp/>For complete documentation, Run:info coreutils'Comm Invocation'

Find out the different lines of two text files