How to retrieve lost aliases?

Question

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?

What if you just type `alias`? It will show what you have defined. — fedorqui, Jul 23 '14 at 15:04
Your next question is now required to be about setting up a backup system. :-/ — derobert, Jul 23 '14 at 16:06
Your next task, as soon as you've recreated your `.bash_aliases`, is to [set up version control for your dot files](http://unix.stackexchange.com/questions/1875/tips-for-putting-under-source-control). — Gilles 'SO- stop being evil', Jul 23 '14 at 23:02
@Gilles even better: http://unix.blogoverflow.com/2014/04/getting-started-with-version-controlled-configurations/ — strugee, Jul 24 '14 at 05:26

score 15 · Answer 1 · answered Jul 23 '14 at 13:03

15

Easy trick

for alias in $(compgen -a); do type $alias; done

answered Jul 23 '14 at 13:03

dchirikov

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You, sir or madame, are a life saver. – MrUser Jul 23 '14 at 13:06
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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 '14 at 18:12
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While this works, I don't see the benefit over just using 'alias'. The format isn't particularly useful by comparison. – moopet Jul 24 '14 at 08:01

score 10 · Accepted Answer · answered Jul 23 '14 at 14:27

10

You can almost definitely just do:

alias >>./bash_aliases

answered Jul 23 '14 at 14:27

mikeserv

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How to retrieve lost aliases?

2 Answers2