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Top Forums Shell Programming and Scripting Help using variable in find rule Post 302709013 by Corona688 on Tuesday 2nd of October 2012 01:57:21 PM
Old 10-02-2012
Quote:
Originally Posted by Lem
Uhm... How can it be done without having write access to the script?
Because the command is being run from a variable. I'm guessing he didn't do that on a lark, but because he wanted the contents to vary depending on how the script is used.

That leaves room for injection of malicious strings unless done very, very carefully.

It's also completely avoidable by just not using eval at all.
 

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logcheck-test(1)					      General Commands Manual						  logcheck-test(1)

NAME
logcheck-test - test new logcheck rules easily SYNOPSIS
logcheck-test [-q|-i] [-a|-s|-l FILE] [-e] [-P PREFIX] [-S SUFFIX] RULE logcheck-test [-q|-i] [-a|-s|-l FILE] -r RULEFILE DESCRIPTION
logcheck-test parses a log file for matching lines specified by a single rule or a rule file. If using a single RULE you can set a PREFIX and a SUFFIX to write new rules easily. OPTIONS
-h, --help Show usage information -a, --auth.log Parse /var/log/auth.log for matching lines -s, --syslog Parse /var/log/syslog for matching lines -l, --log-file FILE Parse FILE for matching lines -i, --invert-match Show line that don't match the RULE or the RULEFILE -q, --quiet Suppress rule summary at the end of output -e, --surround-rule Surround RULE with standard prefix and suffix: ^[[:alpha:]]{3} [ :[:digit:]]{11} [._[:alnum:]-]+ RULE$ -P, --append-prefix PREFIX Append PREFIX to rule prefix. Option can be given multiple times -S, --prepend-suffix SUFFIX Prepend SUFFIX to rule suffix. Option can be given multiple times -r, --rule-file RULEFILE Use file RULEFILE for rule input EXAMPLES
With logcheck-test you can easily write and test new rules. Test a single rule against /var/log/syslog: logcheck-test -s "RULE" Test a single rule against ~/log, surround the rule with standard prefix and suffix and append "kernel " to prefix: logcheck-test -l ~/log -e -P "kernel " "RULE" Test the rules in rulefiles/linux/ignore.d.server/kernel against ~/log: logcheck-test -l ~/log -r rulefiles/linux/ignore.d.server/kernel Test which lines the rules in rulefiles/linux/ignore.d.server/kernel doesn't match: logcheck-test -l ~/log -r rulefiles/linux/ignore.d.server/kernel -i EXIT STATUS
On successful matching logcheck-test will complete with exit code 0. An exit code of 1 indicates no successful matching. An exit code greater then 1 indicates an error occurred. Textual errors are written to the standard error stream. SEE ALSO
logcheck(8) AUTHOR
logcheck is developed by Debian logcheck Team at alioth: http://alioth.debian.org/projects/logcheck/. This manual was written by Hannes von Haugwitz <hannes@vonhaugwitz.com>. Feb 19, 2010 logcheck-test(1)
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