cmp(1) General Commands Manual cmp(1)Name
cmp - compare two files
cmp [-l | -s] file1 file2 [ skip1 ] [ skip2 ]
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.
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)
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cmp(1) General Commands Manual cmp(1)NAME
cmp - compare two files
file1 file2 [skip1 [skip2]]
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
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.
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.
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.
STANDARDS CONFORMANCE cmp(1)
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.
File1 (Original file)
JOHNIEE (7 Replies)
As per my requirement, I need to take difference between two big files(around 6.5 GB) and get the difference to a output file without any line numbers or '<' or '>' in front of each new line.
As DIFF command wont work for big files, i tried to use BDIFF instead.
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I need to compare two files:
Basically I have an input file fileA.
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Both file format is like:
The input file format is:
fbc01mns:10.80.11.3... (8 Replies)
I am writing a file comparison utility and using the cmp command to compare 2file. But I need command that will compare 2 files and if the files are identical expect for differences in white spaces, then it should ignore those spaces and consider the two files equal. Is there a way to... (7 Replies)
I am trying to compare two identical files by using md5 command, but cant get the right command parameters Please help me with any examples. All I want is to know how to compare two identical files which are residing on two different machines in my local network, for example:
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i'm a beginner in writing awk scripts and I have a problem with reading input files.
Requirement for my programm:
compare file1 to file2 and check if value in column1 is equal and value in column5 is different.
180 P 01.01.2008 30.06.2008 2
180 P 01.07.2008 ... (10 Replies)
Long list of Input file1 content:
Long list of Input file2 content:
1285_t chris germany
8288_c steve england
9626_a dave swiss
9260_s stephanie denmark
. (14 Replies)
I have a need to compare 2 files, then print results to file. Need to find items from file2 that are not found in file 1. thanks in advance!
kkkkk=45 (8 Replies)
I need to find the difference between two files in UNIX. I tried diff, but couldn't get it right.
There are two files:
I need an output file like below: ... (11 Replies)
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So i think of this.
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e.g file1.txt is
Filesystem Size Used Avail Use% Mounted on
18G 2.4G 15G 14% /
tmpfs 504M ... (12 Replies)
Am trying script to compare 2 files and print the difference found from old file to new file on line by line basis on side by side display.
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I'd like to know if it is possible for a command to find the first difference between two large files, output that line from both file and stop, so no need to continue after that to save some computation time.
I don't think looping through it will be efficient enough but that's the only... (6 Replies)
PRIM_SEQ=`some sql code`
and output of PRIM_SEQ is like below
STB_SEQ=`some sql code`
and output of STB_SEQ is like below
i need to compare this two variables output ( decimal numbers)
1) What I want to do is to compare every number in the PRIM_SEQ with... (8 Replies)