To avoid having a filename in one file like file1 match longer names in the other file like file10, file101, etc. and to speed things up a little bit, you might want to try:
instead of:
The -F option tells grep to match fixed strings instead of basic regular expressions and the -x option tells grep to only look for full-line matches.
On some older systems, you might need to use fgrep instead of grep -F:
These 2 Users Gave Thanks to Don Cragun For This Post:
There is difference in the files as the size of the files as are below.
But its not displaying the differences. Please advise how to get the differences and mail it as attachment.
Thanks
---------- Post updated at 06:22 PM ---------- Previous update was at 06:15 PM ----------
Don,
Now am able to see the differences in a file. Can you advise How can I export these differences (which will be Side by side) into local desktop to understand and compare easily.
As I can see the differences by using diff -y file1.txt files2,txt
Thanks
Last edited by rbatte1; 11-29-2017 at 08:47 AM..
Reason: Changed ICODE tags to CODE tags
There is difference in the files as the size of the files as are below.
But its not displaying the differences. Please advise how to get the differences and mail it as attachment.
Thanks
---------- Post updated at 06:22 PM ---------- Previous update was at 06:15 PM ----------
Don,
Now am able to see the differences in a file. Can you advise How can I export these differences (which will be Side by side) into local desktop to understand and compare easily.
As I can see the differences by using diff -y file1.txt files2,txt
Thanks
There are at least two issues here.
First, knowing that the files FILE1.txt and FILES2.txt have a different size tells us those two files are different, but it doesn't tell us whether or not any line in either file is unique. The command diff -y f1 f2 will point out line-by-line any similarities and any differences between those two files. The command grep -vFxf f1 f2 will tell you if there are any lines in f2 that do not also appear as a line in f1. For example, if f1 contains the single line:
and f2 contains the three lines:
that diff will tell you:
while that grep command will find no differences (because every line in f2 is also a line somewhere in f1). Similarly, if f1 contains:
and f2 contains:
the diff command will show you that at most one line is the same between the two files while the grep will not find any differences. If your two files contains lists of filenames (especially if those files are not sorted), the grep commands will give you useful information. The diff -y command will give you a lot of information, but it might not be useful.
Second, knowing that files FILE1.txt and FILES2.txt are different says absolutely nothing about whether or not file1.txt and files2,txt are different. UNIX, Linux, and BSD filesystems are case sensitive. And, even on filesystems that are not case-sensitive, a comma and a period are different.
Until you tell us what operating system you're using AND show us what you have tried with mailx there is little that we can do to help you with adding attachments to mail. The mailx utility in the standards doesn't have an option to add attachments. The mailx utility on many systems does have an option to add an attachment to a mail message, but that option can vary from system to system or not be provided at all.
We may also need to know what mail reader will be used by the person receiving your email. Some mail readers recognize a wide variety of attachment types; others do not.
I have
FILE 1 (This file has all master columns/headers)
A|B|C|D|E|F|G|H|STATUS
FILE 2
A|C|F|I|OFF_STATUS
3|4|5|4|Y
6|7|8|5|Y
Below command give me all headers of FILE 2 into array2.txt file
paste <(head -1 FILE2.txt | tr '|' '\n')>array2.txt
So I would like to compare... (2 Replies)
Hey
im working on script that can compare 2 directory and check difference, then copy difference files in third diretory.
here is the story:
in folder one we have 12 subfolder and in each of them near 500 images hosted.
01 02 03 04 05 06 07 08 09 10 11 12
in folder 2 we have same subfolder... (2 Replies)
Hello everybody
Looking for help in comparing two files in Linux(files are big 800MB each).
Example:-
File1 has below data
$ cat file1
5,6,3
2.1.4
1,1,1
8,9,1
File2 has below data
$ cat file2
5,6,3
8,9,8
1,2,1
2,1,4 (8 Replies)
Hello everybody
Looking for help in comparing two files in Linux(files are big 800MB each).
Example:-
File1 has below data
$ cat file1
5,6,3
2.1.4
1,1,1
8,9,1
File2 has below data
$ cat file2
5,6,3
8,9,8
1,2,1
2,1,4 (1 Reply)
Hi
i want to compare two files and i need the o/p of only difference
here the files
file1
achilles
aedxbepo
aedxbwdm01
aedxbwdm02
albedo
amarice
ambrister
anakin
anton
argon
artephius
asgard
avatar
aymara (10 Replies)
I have two files; file A and file B. I need all the entries of file A to be compared with file B line by line. If the entry exists on file B, then save those on file C; if no then save it on file D
Note :- all the columns of the lines of file A need to be compared, except the last two columns... (8 Replies)
Hi experts,
I'mvery new to shell scripting and learning it now
currently i am having a problem which may look easy to u :)
i have two files
File 1:
Start :Thu Nov 19 10:33:09 2009
ABCDGFSDJ.txt
APDemoNew.ppt
APDemoOutline.doc
ARDemoNew.ppt
ARDemoOutline.doc
File 2:
Start... (10 Replies)
hi experts
please help me to compare two files which are in different directory
file1<file will be master file>
(/home/rev/mas.txt}
ex x1
x2
file2 <will be in different folder>
(/home/rev/per/.....)
ex x3
x4
the filesinside per folder i need to compare with master file... (1 Reply)
Hi,
I have a column in 2 different files which i want to compare, and output the results to a different file. The columns are in different positions in those 2 files.
File 1 the column is in position 10-15
File 2 the column is in position 15-20
Please advise
Thanks (1 Reply)