The Sed FAQ

ISL wrote: post #4

My traditional reference for sed syntax (though hardly so well-explained, it can usually get the job done). https://www.google.com/search?q=sed+one+liners

I love seeing my blog posts at the top. :)

Re: The Sed FAQ

#7

Post by McUsr » Sun, Apr 07, 2013, 5:38 PM UTC

Hello. It is always nice with more stuff on sed, Here is a nice link for those wanting to learn the basics: http://www.grymoire.com/Unix/Sed.html

Re: The Sed FAQ

#8

Post by praptak » Sun, Apr 07, 2013, 6:19 PM UTC

My favourite use case is when ssh complains about a host key being changed. I just substitute the offending line number into this: sed -i d ~/.ssh/known_hosts and I'm done. Obviously I don't do that thoughtlessly otherwise I'd just disable ssh hosts checking altogether.

Re: The Sed FAQ

#9

Post by UNIXgod » Sun, Apr 07, 2013, 6:40 PM UTC

praptak wrote: post #8

My favourite use case is when ssh complains about a host key being changed. I just substitute the offending line number into this: sed -i d ~/.ssh/known_hosts and I'm done. Obviously I don't do that thoughtlessly otherwise I'd just disable ssh hosts checking altogether.

actually that's a perfect use case for ed

for example:

Offending key in /home/user/.ssh/known_hosts:12

ed .ssh/known_hosts

12d

w

q

Re: The Sed FAQ

#10

Post by babuskov » Sun, Apr 07, 2013, 7:06 PM UTC

Nice collection of one-liners:

http://sed.sourceforge.net/sed1line.txt