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Top Forums UNIX for Beginners Questions & Answers Comparing two files and list the difference with common first line content of both files Post 303041025 by RudiC on Tuesday 12th of November 2019 10:41:24 AM
Old 11-12-2019
man diff:


Quote:
NAME
GNU diff - compare files line by line

SYNOPSIS
diff [OPTION]... FILES

DESCRIPTION
Compare FILES line by line.

If your OS / shell don't offer "process substitution", try also:
Code:
sed 's/^# file.*/&\n\n&\n/' file2 | diff -y -b --suppress-common-lines - file1

 

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BZDIFF(1)						      General Commands Manual							 BZDIFF(1)

NAME
bzcmp, bzdiff - compare bzip2 compressed files SYNOPSIS
bzcmp [ cmp_options ] file1 [ file2 ] bzdiff [ diff_options ] file1 [ file2 ] DESCRIPTION
Bzcmp and bzdiff are used to invoke the cmp or the diff program on bzip2 compressed files. All options specified are passed directly to cmp or diff. If only 1 file is specified, then the files compared are file1 and an uncompressed file1.bz2. If two files are specified, then they are uncompressed if necessary and fed to cmp or diff. The exit status from cmp or diff is preserved. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +--------------------+-----------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +--------------------+-----------------+ |Availability | SUNWbzip | +--------------------+-----------------+ |Interface Stability | External | +--------------------+-----------------+ SEE ALSO
cmp(1), diff(1), bzmore(1), bzless(1), bzgrep(1), bzip2(1) BUGS
Messages from the cmp or diff programs refer to temporary filenames instead of those specified. BZDIFF(1)
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