On 02/15/2016 04:32 PM, Ken Moffat wrote:
This is my logging problem.  A while ago, I reworked my logging to
get a list of everything "interesting" before a package was built,
and again after.  This uses a long pipeline to exclude things which
are not interesting (in chroot I build in /building, log in /logs and
keep internal markers in /misc).  I also use ls -l on all the files of
interest, to get changes.

What seems to be happening is that grep-2.23 used with -v discards
too much, grep-2.22 was ok.

My commands have evolved, the listing comes down to the following,
reformatted to one part per line with numbers added at end

find -H / -xdev -type f -o -type l | \  # 001
sed 's%^/mnt/lfs%%' | \                 # 002
grep -v '^/logs' | \                    # 003
grep -v '^/misc' | \                    # 004
grep -v '^/building' | \                # 005
grep -v '^/tmp' |  \                    # 006
sed 's/\x20/\\\ /g' | \                 # 007
xargs ls -l | \                         # 008
sed 's%\([^/]*\)\(.*\)%\2 \1%'          # 009

All is fine in the first two steps, but removing any line which
starts '/logs' does far more.

root in chroot /# wc -l /tmp/list002 /tmp/list003
   37121 /tmp/list002
    1495 /tmp/list003

and the diff starts:

--- /tmp/list002        2016-02-15 20:38:16.966065542 +0000
+++ /tmp/list003        2016-02-15 20:38:39.717790746 +0000
@@ -1492,35630 +1492,4 @@
  /usr/share/doc/kbd-2.0.3/iso8859-4.txt
  /usr/share/doc/kbd-2.0.3/utf/utflist
  /usr/share/doc/kbd-2.0.3/utf/ethiopic
-/usr/share/doc/kbd-2.0.3/utf/<E2><99><AA><E2><99><AC>
-/usr/share/doc/kbd-2.0.3/utf/utfdemo
-/usr/share/doc/kbd-2.0.3/utf/README
-/usr/share/doc/kbd-2.0.3/kbd.FAQ-21.html
-/usr/share/doc/kbd-2.0.3/iso8859-6.txt
-/usr/share/doc/kbd-2.0.3/kbd.FAQ-9.html
-/usr/share/doc/kbd-2.0.3/kbd.FAQ-1.html
-/usr/share/doc/kbd-2.0.3/kbd.FAQ-17.html
-/usr/share/doc/kbd-2.0.3/kbd.FAQ-13.html
-/usr/share/doc/kbd-2.0.3/kbd.FAQ-16.html
-/usr/share/doc/kbd-2.0.3/iso8859-14.txt
-/usr/share/doc/kbd-2.0.3/iso8859-1.txt
-/usr/share/doc/kbd-2.0.3/iso8859-10.txt

and finally gets to
-/bin/cat
-/bin/cp
-/bin/bzcat
-/bin/lsattr
+Binary file (standard input) matches

Can anybody confirm this sort of problem with grep-2.23 ?  Or am I
misusing those grep -v commands ?

FWIW, the final sed rearranges the fields so that the filename comes
first - that aids the comparison.

Do you get similar results with slightly different grep commands - for example, does it do the same if you leave out the "^" and just do "grep -v '/logs'"?
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