Check tcp-wrapping support

supportsWrap(){ ldd `which ${1}` | grep "libwrap" &>/dev/null && return 0 || return 1; }
This function returns TRUE if the application supports tcp-wrapping or FALSE if not by reading the shared libraries used by this application.
Sample Output
if supportsWrap sshd ;then  vim + -o /etc/hosts.allow /etc/hosts.deny; fi

1
By: cicatriz
2010-12-01 15:22:29

These Might Interest You

  • tput rmam will disable line wrapping so that long lines are truncated to width of the terminal ($COLUMNS). tput smam will re-enable wrapping. I've always used tput in bash scripts but I guess it works on the command line too. Doesn't work in all terminals. See http://www.gnu.org/software/termutils/manual/termutils-2.0/html_chapter/tput_1.html


    0
    tput rmam
    kennyld · 2014-02-26 07:06:37 0
  • The dates in the output are Start Date, End Date, Days Remaining in warranty, respectively. This will only work if you are running it on a dell machine. You can substitute the dmidecode command with a service tag if you are not using a dell. Also, you have to either allow your user to run sudo dmidecode with no password or run this command as root. Show Sample Output


    -2
    curl -Ls "http://support.dell.com/support/DPP/Index.aspx?c=us&cs=08W&l=en&s=biz&ServiceTag=$(dmidecode -s system-serial-number)"|egrep -i '>Your Warranty<|>Product Support for'|html2text -style pretty|egrep -v 'Request|View'|perl -pane 's/^(\s+|\})//g;'
    din7 · 2011-02-18 22:29:05 0
  • This is wonderful perl script to check the web server security and vulnerability .Get it from here :http://www.cirt.net/nikto2 Here are some key features of "Nikto": ? Uses rfp's LibWhisker as a base for all network funtionality ? Main scan database in CSV format for easy updates ? Determines "OK" vs "NOT FOUND" responses for each server, if possible ? Determines CGI directories for each server, if possible ? Switch HTTP versions as needed so that the server understands requests properly ? SSL Support (Unix with OpenSSL or maybe Windows with ActiveState's Perl/NetSSL) ? Output to file in plain text, HTML or CSV ? Generic and "server type" specific checks ? Plugin support (standard PERL) ? Checks for outdated server software ? Proxy support (with authentication) ? Host authentication (Basic) ? Watches for "bogus" OK responses ? Attempts to perform educated guesses for Authentication realms ? Captures/prints any Cookies received ? Mutate mode to "go fishing" on web servers for odd items ? Builds Mutate checks based on robots.txt entries (if present) ? Scan multiple ports on a target to find web servers (can integrate nmap for speed, if available) ? Multiple IDS evasion techniques ? Users can add a custom scan database ? Supports automatic code/check updates (with web access) ? Multiple host/port scanning (scan list files) ? Username guessing plugin via the cgiwrap program and Apache ~user methods Show Sample Output


    0
    nikto.pl -h yourwebserver
    unixbhaskar · 2009-08-29 04:54:43 0

  • 1
    curl -s $dellurl$1 | tr "\"" "\n" | grep "</td></tr><tr><td class=" -m 2 | grep -v "Service Tag" | sed 's/>//g' | sed 's/<\/td<\/tr<tr<td class=//g'
    IsraelTorres · 2010-10-13 01:09:30 0

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

You must be signed in to comment.

What's this?

commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

Share Your Commands



Stay in the loop…

Follow the Tweets.

Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.

» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10

Subscribe to the feeds.

Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):

Subscribe to the feed for: