spal

If you look where we started ( http://news.ycombinator.com/item?id=4076559 ), I'm not trying to feed the regex pattern to grep via stdin, but I'm trying to feed the input stream to be searched for the pattern to grep via stdin.

spal

14년 전discuss

Why are you extracting 35 characters with 'cut -c6-40'? SHA1 produces a 160-bit message digest. That's 20 bytes or 40 hex-digits.

spal

14년 전discuss

BTW, the commands involving 'openssl' can be fixed in this manner.

  $ printf linkedintrouble | openssl sha1 | cut -c10- | grep -f - combo_not.txt 
  3ac85868a20c977661a12f770f0d116f87c74831

spal

14년 전discuss

No, he is trying to demonstrate how to use 'xargs node -e'.

Are you even reading this discussion properly or are you just searching for some shell snippets and ridicule them as soon as you get a chance? This is what it looks like from your history: http://news.ycombinator.com/threads?id=uselessuseof

ionwake doesn't want to learn how to search a word. He wants to know how 'xargs node -e' works. Please read this again: http://news.ycombinator.com/item?id=4075293

spal

14년 전discuss

This doesn't work, because:

  $ printf linkedintrouble | openssl sha1
  (stdin)= 3ac85868a20c977661a12f770f0d116f87c74831

The leading '(stdin)=' messes the pattern being fed to 'grep'.

Yes, I've read http://partmaps.org/era/unix/award.html#cat . The output of sha1sum already contains a trailing '-' which is something I wanted to feed into 'grep' using command substitution, so that 'grep' can now just accept the input stream from 'stdin'. Now, how do you feed the input to grep via 'stdin' if you don't want to use 'cat'?

spal

14년 전discuss

  $ cat combo_not.txt | grep `printf linkedintrouble | sha1sum`
  3ac85868a20c977661a12f770f0d116f87c74831
  $ cat combo_not.txt | grep `printf nathanlinkedin | sha1sum`
  a4d28368130ad555c77ec6a4dd18b8977ac0f589
  $ cat combo_not.txt | grep `printf mypassword | sha1sum`
  $ cat combo_not.txt | grep `printf yourpassword | sha1sum`
  $

spal

15년 전discuss

In my experience, I haven't found this to be true. The algo-guys I've met are also critical thinkers when it comes to designing scalable and reliable systems.

spal

15년 전discuss

You care about your identity and your tweets on Twitter. So, this is a sensitive account. It wasn't clear earlier whether you cared about your perlmonks.org identity so much. So, assuming the worst case scenario, this should have been considered a sensitive account as well.

This means that ideally you should have chosen two different passwords for both these accounts.

For some sites like reddit, HN, etc. one may know very well in advance that they don't care about their identity and they would be happy to create a new account when they lose one. I think these are the only cases where password reuse is justified.

spal

15년 전discuss

I am not very sure that a student choosing Computer Science implies that he likes it at some level. It is very common in India to choose Computer Science or Electronics for engineering studies because every other guy seems to be doing the same thing.

Submissions

Pastebin for math with LaTeX support: MathB.in

Browsing behavior for web crawling - Geeking with Greg

Some comparisons between ImageMagick and GD (PHP)

Science, Technology and Humanity at Singularity Summit 2011

Naive Bayes classifier in 50 lines

Modular USB flash drive concept offers a new way to sort your data

When worse is better

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