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I have many productive aliases set for myself, but I very frequently use `screen`. The only problem is, my aliases don't stick around when I use screen, they revert to the defaults.
As a matter of fact, I can't even find where those defaults are.
I looked (obivously) in my own .bashrc, and /etc/bashrc, and checked other bash files but they're not there!
Basically, I have ll definated as ls -laF instead of just ls -l among other things.
So why does screen reset it's definition? (And where in the hell are those normal defaults? [rm = rm -i, cp = cp -i, mv = mv -i, ll = ls -l, etc.])
Try looking in /etc/profile.
I have never had any problems with screen screwing up my aliases though. Do you define them in your .bashrc? If so, is .bashrc included in .bash_profile? If not you can make .bash_profile call .bashrc so .bashrc always will be parsed. Include this in your .bash_profile: