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POSIX vs backticks

A couple of years ago, I was sifting through the manpage for bash. I was at the time looking for something else, but my attention was caught by the section about command substitution, I. E. the art of letting a command be substituted by the output of it's execution. In shells, there are two ways in which this can be accomplished; backticks /backquotes or braces. When I read it, it said backticks were old style. I searched for a bit and found a reference that it was deprecated.

How anal am I?

software: 

I just found myself asking me that question. Allright, I am a nerd and I'm fine with that. Allright, I'm very persistent about orderliness and I've come to accept that as a part of my personality. Now, when using the commandline and bash in particular and you've written a command that you decide that you don't want to execute, how do you go about clearing the cli row? Out of the possibilities I know I could choose CTRL+c which would be kinda natural and quite easy to type too. A perfectly fine alternative. But *no*. There's another way to go about it; CTRL+u.

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