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Let me start by saying I know this was dumb. Time and Linux make fools of us all.

I made an echo command to my .bash_aliases file and erased all of my aliases, except the test alias. However, I still have a session open that has the aliases loaded (into the tcl?). Can I retrieve them from this session?

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9  
What if you just type alias? It will show what you have defined. –  fedorqui Jul 23 at 15:04
2  
Your next question is now required to be about setting up a backup system. :-/ –  derobert Jul 23 at 16:06
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Your next task, as soon as you've recreated your .bash_aliases, is to set up version control for your dot files. –  Gilles Jul 23 at 23:02
    
@Gilles even better: unix.blogoverflow.com/2014/04/… –  strugee Jul 24 at 5:26

2 Answers 2

up vote 10 down vote accepted

You can almost definitely just do:

alias >>./bash_aliases
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Easy trick

for alias in $(compgen -a); do type $alias; done
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4  
You, sir or madame, are a life saver. –  MrUser Jul 23 at 13:06
    
You are welcome :) –  dchirikov Jul 23 at 13:51
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Combine this with redirection to a file ($alias > .bash_aliases, maybe with some file regexes to get it to the right place in the file) and you don't have to type it back into the original file yourself. (That is, if you haven't already typed it in.) –  trysis Jul 23 at 18:12
    
While this works, I don't see the benefit over just using 'alias'. The format isn't particularly useful by comparison. –  moopet Jul 24 at 8:01

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