Log4Perl: file permissions

fefofe@gmx.ch has asked for the wisdom of the Perl Monks concerning the following question:

Hi, I try to set permissions for logfiles generated by Log4Perl ... The logger is initialized by a configfile

Log::Log4perl->init($configfile);
[download]

In the file I have this configuration:

log4perl.appender.MasterLog           = PCIDSSAppender
log4perl.appender.MasterLog.filename  = /var/log/application/perl.log
log4perl.appender.MasterLog.mode      = append
log4perl.appender.MasterLog.size      = 10000000
log4perl.appender.MasterLog.max       = 25
log4perl.appender.MasterLog.permissions = 
log4perl.appender.MasterLog.layout    = PatternLayout
log4perl.appender.MasterLog.layout.ConversionPattern=%d %H [%P:%p] %F:
+%L:- %m%n
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This leads to this permissions: -rw-r--r-- What I need is 600: -rw------- How to configure this ?? A setting off 600 leads to this: ---x-wx--T I'm really confused about this ...

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Re: Log4Perl: file permissions by hippo (Archbishop) on Sep 15, 2017 at 07:58 UTC
You almost certainly want to use 0600 rather than 600. See the docs for chmod for details of the oct/dec/string differences.	[reply]
Re^2: Log4Perl: file permissions by Anonymous Monk on Sep 15, 2017 at 08:23 UTC
0600 still leads to ---x-wx--T I think 0600 is interpreted as a string rather then a octal number, but how can I avoid this ?	[reply]
Re^3: Log4Perl: file permissions by choroba (Cardinal) on Sep 15, 2017 at 08:33 UTC
`$ perl -wE 'say 0600' 384` [download] ($q=q:Sq=~/;[c](.)(.)/;chr(-\|\|-\|5+lengthSq)`"S\|oS2"`map{chr \|+ord }map{substrSq`S_+\|`\|}3E\|-\|`7**2-3:)=~y+S\|`+$1,++print+eval$q,q,a, [download]	[reply] [d/l] [select]
Re: Log4Perl: file permissions by kcott (Archbishop) on Sep 16, 2017 at 04:58 UTC
G'day fefofe, Welcome to the Monastery. "A setting off 600 leads to this: ---x-wx--T I'm really confused about this" Firstly, `600` decimal is `1130` octal: `$ perl -E 'say 01130' 600` [download] The permissions you show are correct for that number: `$ > fred $ ls -l fred -rw-r--r-- 1 ken staff 0 Sep 16 14:16 fred $ chmod 1130 fred $ ls -l fred ---x-wx--T 1 ken staff 0 Sep 16 14:16 fred` [download] You don't show how you're using "`600`"; regardless, it's clearly being read as a decimal number, as indicated by "`---x-wx--T`". If you replace "`600`" with "`384`", as shown by choroba, that should give you the wanted permissions of "`-rw-------`". Perhaps also look at "`umask`" in the OPTIONS section of Log::Log4perl::Appender::File. — Ken	[reply] [d/l] [select]
Re^2: Log4Perl: file permissions by fefofe@gmx.ch (Initiate) on Sep 18, 2017 at 06:12 UTC
That was the problem, thought that 600 maybe was interpreted as a string but I not had the idea that perl could read this as a decimal number ... So all is fine, I have my permissions and know how to set them in future, many thanks!	[reply]