cmp(1) General Commands Manual cmp(1)NAME
cmp - compare two files
SYNOPSIS
file1 file2 [skip1 [skip2]]
DESCRIPTION
compares two files (if file1 or file2 is the standard input is used). Under default options, makes no comment if the files are the same;
if they differ, it announces the byte and line number at which the difference occurred. If one file is an initial subsequence of the
other, that fact is noted. skip1 and skip2 are initial byte offsets into file1 and file2, respectively; and maybe octal or decimal; the
form of the number is determined by the environment variable (in the C locale, a leading 0 denotes an octal number. See on environ(5) and
strtol(3C)).
recognizes the following options:
Print the byte number (decimal) and the differing bytes (octal)
for each difference (byte numbering begins at 1 rather than 0).
Print nothing for differing files; return codes only.
EXTERNAL INFLUENCES
Environment Variables
determines the language in which messages are displayed. If is not specified or is set to the empty string, a default of "C" (see lang(5))
is used instead of If any internationalization variable contains an invalid setting, behaves as if all internationalization variables are
set to "C". See environ(5).
International Code Set Support
Single- and multi-byte character code sets are supported.
DIAGNOSTICS
returns the following exit values:
Files are identical.
Files are not identical.
Inaccessible or missing argument.
prints the following warning if the comparison succeeds till the end of file of file1(file2) is reached.
SEE ALSO
comm(1), diff(1).
STANDARDS CONFORMANCE cmp(1)
Check Out this Related Man Page
cmp(1) General Commands Manual cmp(1)Name
cmp - compare two files
Syntax
cmp [-l | -s] file1 file2 [ skip1 ] [ skip2 ]
Description
The command compares two files. If either file1 or file2 is `-', standard input is used for the file. With no options, makes no comment
if the files are the same. If they differ, it reports the byte and line number at which the difference occurred to standard output. If
one file is an initial subsequence of the other a message including the file name is written to standard error.
The optional skip1 and skip2 parameters are initial byte offsets into file1 and file2 respectively and may be either octal, by specifying a
leading 0, or decimal. When using skip1 and skip2 the offset is treated as the start of the respective input file. Only one option may be
specified at a time. Only one of the input files may be standard input at a time. Because the line number is not calculated when using
either of the options the use of either flag will increase the speed of
Options-l Long format: prints the byte number (decimal) and the differing bytes (octal) for each difference.
-s Suppresses normal output and sets the exit code only.
Diagnostics
Exit code 0 is returned for identical files, 1 for different files, and 2 for an inaccessible or missing argument.
See Alsocomm(1), diff(1)cmp(1)
FOR: Windows NT 4
I want perl to read a directory. there is suposed to be two files in the folder ( file1.ini and file2.ini ) and i want perl to print "Files present" or "Files NOT present" to a text document ( report.txt )
how do i do it.? (2 Replies)
Hi all,
please give me the commands using which i can compare 2 sorted files and get the difference in third file, indiating where the difference is from either file1 or file2.
as:
File1 (Original file)
GARRY
JOHN
JULIE
SAM
---------------
File2
DEV
GARRY
JOHN
JOHNIEE (7 Replies)
Hi,
Please help me, I have two files. I need to output the difference of contents of each file in another file. For example, I need to know the content of the file1 that does not exist on file2 and vice versa. Please take note that the size of the files are large. How can I do it using unix... (4 Replies)
In my server migration requirement, I need to compare if one file on old server is exactly the same as the corresponding file on the new server.
For diff and comm, the inputs need to be sorted. But I do not want to disturb the content of the file and need to find byte-to-byte match.
Please... (4 Replies)
I am comparing two files which are identical except for the timestamp which is incorporated within the otherwise same 372 bytes. I am using the command:
cmp -s $Todays_file $Yesterdays_file -i 372
When I run the command without the -i 372 it shows the difference i.e. the timestamp.... (5 Replies)
Suppose u have two files
One file
aa bb
aa cc
aa uu
second file
aa cc
cc bb
uu aa
so to print the difference between to files
i shud get cc bb
What can be done (3 Replies)
Hi All,
I have two files as below:
file1 file2
AAAA CCCC,1234,0909
BBBBB AAAA,1234
AAAA DDDD,23536,9090
CCCC
DDDD
EEEEE
I want a out file as below
AAAA,1234
BBBB
AAAA,1234... (5 Replies)
I'm looking to build up a process which would compare 2 files and show difference, the difference needs to be done in such a way that it also shows which column value is differing.
So i think of this.
Run a diff between the files , then someway find which columns have different values need to... (6 Replies)
Hello all
I started computer science and C++ programming only 6 weeks ago with no prior knowledge. It's a great language, the only other one apart from English that I hope to speak fluently quite soon. I look forward to participating further on these forums, seeking answers and looking at previous... (3 Replies)
I have 2 files as follows.
file1.txt
<cell>123</cell>
<cell>345</cell>
file2.txt
<cell>123</cell>
<cell>456</cell>
out out should be
output.txt
<cell>456></cell>
How do we achieve this> The difference betwenn the two files should be wirtten to the output file..
... (2 Replies)
Hi,
I need a small help to compare two PIPE delimited files.
Note : All The Files Have A Column Name
Example:
file1.txt
=================
column1|column2|column3
one|two|three
four|five|six
seven|eight|nine
file2.txt
=================
column1|column2|column3
1|two|three... (2 Replies)
Hi all,
I have a script in file1 which gets input from the user say variable "TYPE". This variable is present in the other file2. I want to replace the variable in the file2 with the value given by the user and print the file. How can I achieve this task?
file1
code
echo "Give... (3 Replies)
Hi all,
I have problem in finding the difference. suppose i have two file
file1 file2
1xyz 1xyz
1asd 1xyz
1asd 1abc
2adf 1asd
3asd 2abd
4abc 2adf
3asf
I need to... (7 Replies)
Hi,
I want to compare two files and put difference into another file.
file1 having 84M records and file2 having 85M records. I tried the below command to get the difference and it is not showing the output after sometime i killed the command.
awk -F"," 'FNR==NR{a++;next}!a' file1.txt... (4 Replies)