I am often logged in several SSH sessions at once. To logout from several sessions, I press CTRL+d, until I am back on my local machine.
However, I occasionally press it once too many, and my terminal exits.
Is there a way to make CTRL+d unable to close my terminal ?
I am using terminator as my terminal emulator.
Answers:
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Method 1
You can also disable eof generally in bash:
set -o ignoreeof
Method 2
You can use the IGNOREEOF environment variable in bash. So export IGNOREEOF=42 and you’ll have to press Ctrl+D forty-two times before it actually quits your shell.
POSIX set has an -o ignoreeof setting too.
Method 3
The Ctrl-D EOF character is being interpreted by the shell, rather than the terminal emulator specifically. Other answers have covered bash settings, although other shells are different.
For C-shells (e.g. tcsh) you can add it to your tcshrc file:
# Prevent accidental logouts completely set ignoreeof # Just prevent the first two, and allow the third set ignoreeof=3
For fish shell, the Ctrl-D behaviour is controlled by the keybinding. The default setting is delete-or-exit, so you can set the keybinding for cd to delete-char to only support delete.
More details are in the Fish Github issue (e.g. in versions before 3.0 you need to add the bind to a function called fish_user_key_bindings, after 3.0 you can put it into ~/.config/fish/config.fish) but in summary:
bind cd delete-char # Don't exit on accidental Ctrl-D bind cdcdcd delete-or-exit # Exit on the third one
All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0