06-07-2011
Daily File Checks
Hello all,
I'm sorry if this is answered elsewhere, I've used the search function and can't find the specifics of what I'm after.
I am brand new to playing with linux, and ideally I want to get better to help the company that I now work for.
What I want to do:
Create a script that I can run daily to check for differences from today to yesterday on my linux server.
My Idea
Use a DF command and record the information from it in a file named size_DDMMYY
Search for every file/folder name on the linux server and write them to a file named linux_DDMMYY
Compare yesterdays size_DDMMYY to todays size_DDMMYY and write the size difference to a file named sizeDiff_DDMMYY
Compare yesterdays linux_DDMMYY to todays linux_DDMMYY and write the difference (new files added, old files deleted) to a file named linuxDiff_DDMMYY
My problem:
At the moment I haven't written any code down, I'm just writing/testing ideas on how to go about this. I've been playing with the diff command but have hit a brick wall. It appears that the diff command compares:
line1 in file1 to line1 in file2 and
line2 in file1 to line2 in file2 etc.
If my linux_DDMMYY output file has new files added to it or old files removed, the diff command would be ineffective (due to line checking not string checking)
What I want it to do(i think) is grab the string from line1 in file1 and search file2 for the same string and then move to the next line in file1 etc.
At the moment I've concluded that using a diff command isn't going to help, i've gone through the other commands that can be used with diff but have yielded no ideal results.
Any help or insight would be greatly appreciated.
Thanks in advance,
Mick
Last edited by Aussiemick; 06-08-2011 at 12:07 AM..
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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)