Visit Our UNIX and Linux User Community

how to compare two VCE files?

Thread Tools Search this Thread
Top Forums Shell Programming and Scripting how to compare two VCE files?
# 1  
Old 06-16-2010
how to compare two VCE files?

Two VCE files (files to pass IT ceritifcate test) have been converted to text files. So now I need a script to compare the difference between them.

Each question session start from QUESTION and end by Section. Here is the sample.

A user logs into a system running the Solaris 8 Operating Environment using the telnet command. The user has been assigned a Korn shell (ksh)and home /home/user1 directory.
All of the following files exist with appropriate ownership and permissions. Which two files are always used
by the Korn shell to initialize this user's session? (Choose two.)

A. /etc/login
B. /etc/.login
C. /etc/profile
D. /home/user1/.login
E. /home/user1/.cshrc

Answer: CF
Section: (none) 

When using the command line to add, modify, or delete user accounts, or to add modify or delete groups, it is possible to use the -o option to allow duplicate users or group IDs.
Which four commands support the use of the -o syntax? (Choose four.)

A. userdel
B. adduser
C. useradd
D. usermod
E. groupmod
F. groupdel
G. groupadd

Answer: CDEG
Section: (none)

1. The questions in file A and file B are not in order, maybe Questions 7 is another file's Question 45.

2. The number of questions is also different.

I'd like to find out the different questions between File A and B. I am also working on it, if you have good idea, please paste here.

Last edited by rdcwayx; 06-16-2010 at 02:31 AM..
# 2  
Old 06-16-2010
Assuming identical questions are literally identical, I'd try splitting the files into individual questions, removing the question number, and taking the checksum of the rest of each question(i.e. echo "question text" | md5sum). You might keep files with with one question each, named their checksums, for later reference... Make a big list of all checksums from both papers, sort it. Any duplicate questions will show up as two of the same checksum in a row.
This User Gave Thanks to Corona688 For This Post:
# 3  
Old 06-17-2010
Thank you, I follow your idea to create the questions files by below commands:

awk '/^QUESTION/ {a=$2;$2=""} {print > "VCE1-" a ".txt"}' VCE1.txt
awk '/^QUESTION/ {a=$2;$2=""} {print > "VCE2-" a ".txt"}' VCE2.txt

then get the checksum number.

ls VCE1*.txt |xargs md5sum |sort -n > VCE1-md5sum
ls VCE2*.txt |xargs md5sum |sort -n > VCE2-md5sum

Here is the format of md5sum list.

$ cat VCE1-md5sum
00bd766865d17c3e243c6784d6b37668 *VCE1-181.txt
0c344ffe57b2422bf0440dd27999052e *VCE1-251.txt
0c9892860724147297f7ecc161221e2d *VCE1-172.txt
0d9a7baa0f12d23172530f692ea0d04c *VCE1-228.txt
0db692b1bf295bb09743768918e48822 *VCE1-147.txt
0e40994fdd199aed380acf4392d5f030 *VCE1-168.txt

Any one has better command to show the different between VCE1-md5sum and VCE2-md5sum

Here is my solution.

Show different questions:
awk '{a[$1]++} END {for (i in a) {if (a[i]==1) print i}}' VCE*md5sum |xargs -i grep {}  VCE*md5sum

Show same questions:
awk '{a[$1]++} END {for (i in a) {if (a[i]==2) print i}}' VCE*md5sum |xargs -i grep {}  VCE*md5sum

Last edited by rdcwayx; 06-17-2010 at 01:02 AM..

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Compare files and share output from both files

hi all, Thanks to all for your great help... I have a scenario that I have two files (file1 & file2). I need to compare two files entire row by row and share the output if any discrepancies within two files. File1: DB1|TB1|C1,C3 DB2|TB2|C1,C2 DB3|TB3|C1,C2,C3,C4 File2: ... (2 Replies)
Discussion started by: Selva_2507
2 Replies

2. Shell Programming and Scripting

Compare multiple files, and extract items that are common to ALL files only

I have this code awk 'NR==FNR{a=$1;next} a' file1 file2 which does what I need it to do, but for only two files. I want to make it so that I can have multiple files (for example 30) and the code will return only the items that are in every single one of those files and ignore the ones... (7 Replies)
Discussion started by: castrojc
7 Replies

3. Shell Programming and Scripting

Compare two files, then overwrite first file with only that in both files

I want to compare two files, and search for items that are in both. Then override the first file with that containing only elements which were in both files. I imagine something with diff, but not sure. File 1 One Two Three Four Five File 2 One Three Four Six Eight (2 Replies)
Discussion started by: castrojc
2 Replies

4. UNIX for Dummies Questions & Answers

VCE file in unix

Hi gurus of unix, is possible to install VCE file in unix. I have a opensolaris SO:confused: (0 Replies)
Discussion started by: andresguillen
0 Replies

5. Shell Programming and Scripting

Require compare command to compare 4 files

I have four files, I need to compare these files together. As such i know "sdiff and comm" commands but these commands compare 2 files together. If I use sdiff command then i have to compare each file with other which will increase the codes. Please suggest if you know some commands whcih can... (6 Replies)
Discussion started by: nehashine
6 Replies

6. Shell Programming and Scripting

Compare 2 folders to find several missing files among huge amounts of files.

Hi, all: I've got two folders, say, "folder1" and "folder2". Under each, there are thousands of files. It's quite obvious that there are some files missing in each. I just would like to find them. I believe this can be done by "diff" command. However, if I change the above question a... (1 Reply)
Discussion started by: jiapei100
1 Replies

7. Shell Programming and Scripting

How to compare 2 files & get only few columns based on a condition related to both files?

Hiiiii friends I have 2 files which contains huge data & few lines of it are as shown below File1: b.dat(which has 21 columns) SSR 1976 8 12 13 10 44.00 39.0700 70.7800 7.0 0 0.00 0 2.78 0.00 0.00 0 0.00 2.78 0 NULL ISC 1976 8 12 22 32 37.39 36.2942 70.7338... (6 Replies)
Discussion started by: reva
6 Replies

8. Shell Programming and Scripting

compare files in two directories and output changed files to third directory

I have searched about 30 threads, a load of Google pages and cannot find what I am looking for. I have some of the parts but not the whole. I cannot seem to get the puzzle fit together. I have three folders, two of which contain different versions of multiple files, dist/file1.php dist/file2.php... (4 Replies)
Discussion started by: bkeep
4 Replies

9. Shell Programming and Scripting

compare two files

I have two files. one file consists of process ID's: ProcessID1 ProcessID2 ProcessID3 Second file consists of 3 records: username1 ProcessID1 Date1 Time1 ProcessName1 username2 ProcessID2 Date2 Time2 ProcessName2 username3 ProcessID3 Date3 Time3 ProcessName3 I have to search the... (6 Replies)
Discussion started by: siri_886
6 Replies

10. Shell Programming and Scripting

compare two files and to remove the matching lines on both the files

I have two files and need to compare the two files and to remove the matching lines from both the files (4 Replies)
Discussion started by: shellscripter
4 Replies

Featured Tech Videos