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May 19, 2015 - A Look At The New Commandlinefu
I've put together a short writeup on what kind of newness you can expect from the next iteration of clfu. Check it out here.
March 2, 2015 - New Management
I'm Jon, I'll be maintaining and improving clfu. Thanks to David for building such a great resource!

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Psst. Open beta.

Wow, didn't really expect you to read this far down. The latest iteration of the site is in open beta. It's a gentle open beta-- not in prime-time just yet. It's being hosted over at UpGuard (link) and you are more than welcome to give it a shot. Couple things:

  • » The open beta is running a copy of the database that will not carry over to the final version. Don't post anything you don't mind losing.
  • » If you wish to use your user account, you will probably need to reset your password.
Your feedback is appreciated via the form on the beta page. Thanks! -Jon & CLFU Team

sort a list of comma separated numbers: sort_csn

Terminal - sort a list of comma separated numbers: sort_csn
sort_csn () { echo "${1}" | sed -e "s/,/\n/g"| sort -nu | awk '{printf("%s,",$0)} END {printf("\n")}' | sed -e "s/,$//"; }
2011-01-26 15:18:08
User: mpb
Functions: awk echo sed sort
sort a list of comma separated numbers: sort_csn

"sort_csn" is a function to sort a comma separated list of numbers.

Define the the function with this:

sort_csn () { echo "${1}" | sed -e "s/,/\n/g"| sort -nu | awk '{printf("%s,",$0)} END {printf("\n")}' | sed -e "s/,$//"; }

Use the function like this:

sort_csn 443,22,80,8200,1533,21,1723,1352,25


One example where this is useful is when port scanning with nmap and getting a list of open ports in random order. If you use Nessus, you may need to create a scan policy for that set of specific ports and it is clearer to read with the port numbers in ascending order (left to right).

Caveat: no spaces in the comma separated list (just number1,number2,number3,etc).

A variation of this to sort a comma separated list of strings:

sort_css () { echo "${1}" | sed -e "s/,/\n/g"| sort -u | awk '{printf("%s,",$0)} END {printf("\n")}' | sed -e "s/,$//"; }


sort_css apples,pears,grapes,melons,oranges



There are 4 alternatives - vote for the best!

Terminal - Alternatives

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What others think

Wow, that's a lot of code. How about simplifying it to this :-)

sort_csn () { echo $1 | tr , '\n' | sort -nu | paste -s -d,; }

tr 'translates' the commas into newlines, then sort, then paste -s (serial) with -d, (comma delimiters).

Comment by flatcap 299 weeks and 6 days ago

That's good fu! Tnx :-)

Comment by mpb 299 weeks and 6 days ago

Your point of view

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