command explanation

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# 1  
Old 09-15-2011
command explanation

can anyone please tell me what does this expression means , i am under probation and need some explanation Smilie

$AUDIT_DIR -type f -mtime +$AUDIT_EXPIRE \ -exec rm {} > /dev/null 2>&1 \;

Moderator's Comments:
Mod Comment Please use code tags!
# 2  
Old 09-15-2011
command will find and remove the files which are older than 30 days in /var/log path
# 3  
Old 09-15-2011
thanks a lot Smilie

---------- Post updated at 05:28 PM ---------- Previous update was at 05:12 PM ----------
is the right format could be written like that:
/usr/bin/find . $AUDIT_DIR -type f -mtime +$AUDIT_EXPIRE | -exec rm {} > /dev/null 2>&1

/usr/bin/find . $AUDIT_DIR -type f -mtime +$AUDIT_EXPIRE \ -exec rm {} > /dev/null 2>&1 \

please can i have explanation for the one that is true ? :$ sorry for tking of ur time

Moderator's Comments:
Mod Comment Please use [code] and [/code] tags when posting code, data or logs etc. to preserve formatting and enhance readability, thanks. Also refrain from overly use of font formattings as it makes it awful to edit a post, thanks! Check your PM about code tags, thanks.

Last edited by zaxxon; 09-15-2011 at 09:38 AM.. Reason: code tags, see PM
# 4  
Old 09-16-2011
Neither | nor \ make much sense there. I don't think it has any purpose at all at present, and would prevent it from working.

I suspect it was originally this:
/usr/bin/find . $AUDIT_DIR -type f -mtime +$AUDIT_EXPIRE \
        -exec rm {} > /dev/null 2>&1

The backslash at the end of the first line makes the shell interpret both as one longer line. This is often used to wrap long lines of code so they're not wider than your editor.
# 5  
Old 09-19-2011
thanks a lot corona688 for the tips Smilie , it was really helpful Smilie

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