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I am using iTerm2 on my mac pro, and using fish as my shell. Every time I have a process running and I break it by pressing ctrl+c, the arrow keys stops working after and starts emitting ^[[A etc.

Attached a screenshot to my iTerm2 preferences > Profiles [Default] > Terminal

enter image description here

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The program has switched to application mode for the cursor-keys (and does not cleanup when interrupted). You can manually switch back using this command:

tput rmkx

Some terminal emulators have a setting in a dialog which lets you do the same thing.

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