[SOLVED] An XARGS question

[Michael Yep]

Thanks that works

Todd Zullinger wrote:
> Michael Yep wrote:
> >> That did not seem to work. Is this correct ?
> >>
> >> [root at localhost ~]# lastb -ai |fgrep "Jul 18" |awk '{print $10
> >> }'|sort|uniq|xargs grep -i {} /root/BLACKLIST
> >> grep: 222.234.108.77: No such file or directory
> >> grep: 83.15.73.34: No such file or directory
>
> The -i is misplaced in this example. You'd want to use it after xargs
> instead of after grep for it to do what you want. (Though you might
> also want to use -i with grep to have it search case-insensitively.)
>
> The xargs manpage states that the -i option is deprecated and you
> should use -I{} instead. The {} is a string, you can use what you
> wish as the string to the -I option, so a more readable example might
> be:
>
> ... | xargs -Iip grep ip blacklist
>
>
> -- 
> Michael Yep
> Development / Technical Operations
> RemoteLink, Inc.
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