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Full Discussion: Help to check header
Top Forums Shell Programming and Scripting Help to check header Post 302753769 by bakunin on Wednesday 9th of January 2013 10:26:31 AM
Old 01-09-2013
It looks like your headers are differently spaced and i suppose this will not count as a difference, right?

If so: first get the headers (line 1 always?) and change all the spacings to a single blank, then compare them ("<b>" and "<t>" mean blank/tab characters):

Code:
header1="$(sed -n '1 s/[<b><t>][<b><t>]*/<b>/gp' file1)"
header2="$(sed -n '1 s/[<b><t>][<b><t>]*/<b>/gp' file2)"

if [ "$header1" != "$header2" ] ; then
     print - "Headers not matching"
else
     print - "Headers OK"
fi

I hope this helps.

bakunin
This User Gave Thanks to bakunin For This Post:
 

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XZDIFF(1)							     XZ Utils								 XZDIFF(1)

NAME
xzcmp, xzdiff, lzcmp, lzdiff - compare compressed files SYNOPSIS
xzcmp [cmp_options] file1 [file2] xzdiff [diff_options] file1 [file2] lzcmp [cmp_options] file1 [file2] lzdiff [diff_options] file1 [file2] DESCRIPTION
xzcmp and xzdiff invoke cmp(1) or diff(1) on files compressed with xz(1), lzma(1), gzip(1), bzip2(1), or lzop(1). All options specified are passed directly to cmp(1) or diff(1). If only one file is specified, then the files compared are file1 (which must have a suffix of a supported compression format) and file1 from which the compression format suffix has been stripped. If two files are specified, then they are uncompressed if necessary and fed to cmp(1) or diff(1). The exit status from cmp(1) or diff(1) is preserved. The names lzcmp and lzdiff are provided for backward compatibility with LZMA Utils. SEE ALSO
cmp(1), diff(1), xz(1), gzip(1), bzip2(1), lzop(1), zdiff(1) BUGS
Messages from the cmp(1) or diff(1) programs refer to temporary filenames instead of those specified. Tukaani 2011-03-19 XZDIFF(1)
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