Re^2: print hash of hashes with a reference

Sorry, here's the output of Dumper:

$VAR1 = {
          '4' => {
                   'group    ' => ' 3
',
                   'user    ' => ' root
',
                   'host    ' => ' 10.0.200.181
',
                   'cmd    ' => ' ls -l /
'
                 },
          '1' => {
                   'cmd ' => ' md5sum /vmlinuz
',
                   'group ' => ' 1
',
                   'user ' => ' root
',
                   'host ' => ' 10.0.200.181
'
                 },
          '3' => {
                   'group    ' => ' 1
',
                   'user    ' => ' root
',
                   'host    ' => ' 10.0.200.183
',
                   'cmd    ' => ' ls -l /
'
                 },
          '2' => {
                   'group    ' => ' 2
',
                   'user    ' => ' root
',
                   'host    ' => ' 10.0.200.184
',
                   'cmd    ' => ' ls -l /
'
                 }
        };
1.
Use of uninitialized value in concatenation (.) or string at ./master-
+backup-daemon.pl line 245.
Host = 
2.
Use of uninitialized value in concatenation (.) or string at ./master-
+backup-daemon.pl line 245.
Host = 
3.
Use of uninitialized value in concatenation (.) or string at ./master-
+backup-daemon.pl line 245.
Host = 
4.
Use of uninitialized value in concatenation (.) or string at ./master-
+backup-daemon.pl line 245.
Host =
[download]

I'd like to print values from the hashes, but somehow the way i want to extract the values from the hashes doesn't seem to work. Line 245 is the line where the print command is.

Comment on Re^2: print hash of hashes with a reference Download Code

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Re^3: print hash of hashes with a reference by toolic (Bishop) on Aug 16, 2008 at 21:19 UTC
It looks like you have spaces after the "cmd" string. So, your keys are not really "cmd", they are "cmd ". I can't really tell how many spaces you have in those keys.	[reply]
Re^3: print hash of hashes with a reference by FunkyMonk (Bishop) on Aug 16, 2008 at 21:19 UTC
Look at your Data::Dumper output. You've got a space or tab after each of your keys.	[reply]
Re^3: print hash of hashes with a reference by shmem (Chancellor) on Aug 16, 2008 at 21:28 UTC
`'cmd ' => ' ls -l / '` [download] Looks like your keys contain trailing whitespace, and your values have a leading blank and a trailing newline. -- shmem	[reply] [d/l]
Re^3: print hash of hashes with a reference by broomduster (Priest) on Aug 16, 2008 at 21:24 UTC
Notice that the second level keys have whitespace at the end, and notice that your `print` statement uses a key of `cmd` (no whitespace). You should trim the whitespace when you construct the hash. You should also take notice here that the values have `\n` (and possibly other whitespace) at the end (which may also bite you, depending on how you intend to use them).	[reply] [d/l] [select]
Re^3: print hash of hashes with a reference by ScOut3R (Sexton) on Aug 16, 2008 at 21:51 UTC
Thank You! All of You! The spaces were the problem. It's a shame that i haven't noticed this myself.	[reply]