That can't possibly have been the code you ran, a third of it's missing. I'm assuming you mean my second posted code?
Quote:
The only thing I added was #!/usr/bin/sh, cause my boss told me I would need it!
Not the way you're using it, you don't. The way you're using it you aren't even guaranteed /usr/bin/sh since you just type 'sh' and let your login shell run whatever sh comes first in your PATH. The #! line only matters when you run it like ./scriptname
The md5sum utility is part of openssh and found in many places. This md5 utility you have, I have no idea what it is; but with it's weird location( /usr/local/bin/ is where custom-built things usually get installed), its poor error behavior(dumping errors to stdout), and the vexing way it reads from stdin even when given a filename, it looks like a one-off to me -- not even a standard HP-UX utility. So how it actually behaves is something I've had to deduce like the blind man and the elephant.
I think that last code may actually have been working. It just never printed anything unless a host found an error. Quick, try this.
Code:
#!/usr/bin/sh
# If you don't have mktemp, TMP=/tmp/$$ will do. mktemp is more secure.
TMP=`mktemp`
while read fname; do
#bname=$(basename $fname)
echo "trying ${fname}" >&2
if ! /usr/local/bin/md5 "$fname" > "$TMP" </dev/null
then
echo "md5 on ${fname} failed: "
# print the error
cat "$TMP"
continue
fi
hash=$(awk '{print $4}' "$TMP")
echo "local hash is ${hash}" >&2
# should just print the md5's
/usr/local/bin/hosts | while read box
do
# redirect its stdin to prevent it reading any filenames
ssh "${box}" "/usr/local/bin/md5" "${fname}" > "$TMP" </dev/null
# Skip errors
[ "$?" -eq 0 ] || continue
remotehash=$(awk '{print $4;}' < "$TMP")
if [ "$remotehash" = "$hash" ]
then
echo "${box} $fname is okay!"
else
echo "${box} $fname differs!"
fi
done
done < /home/izivanov/iz3
# clean up temp file
rm -f "$TMP"
Last edited by Corona688; 03-09-2011 at 04:19 PM..
I have a script that runs the grub-md5-crypt command based on whether the pass_value variable is a non-zero string. The md5 hash is being created in the /opt/hostconfigs/$HOST file, but I can't echo $md5_value. It is blank. Is there a way to create and echo a md5 hash variable?
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Hi
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Discussion started by: torchij
16 Replies
LEARN ABOUT PHP
gzexe
GZEXE(1) General Commands Manual GZEXE(1)NAME
gzexe - compress executable files in place
SYNOPSIS
gzexe name ...
DESCRIPTION
The gzexe utility allows you to compress executables in place and have them automatically uncompress and execute when you run them (at a
penalty in performance). For example if you execute ``gzexe /usr/bin/gdb'' it will create the following two files:
-rwxr-xr-x 1 root root 1026675 Jun 7 13:53 /usr/bin/gdb
-rwxr-xr-x 1 root root 2304524 May 30 13:02 /usr/bin/gdb~
/usr/bin/gdb~ is the original file and /usr/bin/gdb is the self-uncompressing executable file. You can remove /usr/bin/gdb~ once you are
sure that /usr/bin/gdb works properly.
This utility is most useful on systems with very small disks.
OPTIONS -d Decompress the given executables instead of compressing them.
SEE ALSO gzip(1), znew(1), zmore(1), zcmp(1), zforce(1)CAVEATS
The compressed executable is a shell script. This may create some security holes. In particular, the compressed executable relies on the
PATH environment variable to find gzip and some standard utilities (basename, chmod, ln, mkdir, mktemp, rm, sleep, and tail).
BUGS
gzexe attempts to retain the original file attributes on the compressed executable, but you may have to fix them manually in some cases,
using chmod or chown.
GZEXE(1)
03-09-2011
It just never printed anything unless a host found an error. Quick, try this.