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I would like to be able to define arbitrary modifications to command lines that happen before bash sees them at all, ie, before expansion of any kind. Is this possible?
I'm not trying to solve one particular problem, I'm really just curious if it is possible to obtain exactly this functionality without writing my own shell.
Personman
Posted 2010-07-24T20:30:07.733
Reputation: 273
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I would suggest that you investigate the possibility of binding the readline function accept-line (Ctrl-m) into the Bash completion facility (readline complete) where you would be able to process the line and should be able to execute it from there.
Paused until further notice.
Posted 2010-07-24T20:30:07.733
Reputation: 86 075
Can you give an example of how one would do this? Are you suggesting using a bind command to change the behavior of C-m? Or are you suggesting that complete offers some way to intercept accept-line? – poindexter – 2012-04-27T18:03:43.573
What kind of modifications? If you just want shortcuts to things, use
alias. – jtbandes – 2010-07-24T21:13:51.023ockquote>
"before expansion of any kind."
I would like to do complete rewriting of entire command lines. Aliases and shell functions are the limitation I am trying to overcome. – Personman – 2010-07-24T21:28:47.577
related: http://superuser.com/questions/175799/does-bash-have-a-hook-that-is-run-before-executing-a-command
– poindexter – 2012-04-30T14:10:57.723