screen: add GNU Screen config

[~bandali/configs] / .profile

export INPUTRC="$XDG_CONFIG_HOME"/readline/inputrc
export SCREENRC="$XDG_CONFIG_HOME"/screen/screenrc

export EDITOR="emacsclient -nw"
export VISUAL="emcl"

export PATH="$HOME/.local/bin:$HOME/.cabal/bin:$HOME/.cargo/bin:$HOME/.elan/bin${PATH:+:}$PATH"

export XDG_CONFIG_HOME="$HOME/.config"
export XDG_DATA_HOME="$HOME/.local/share"
export XDG_DATA_DIRS="/usr/local/share:/usr/share"

export MAILDIR="$HOME/mail"
export CVS_RSH="ssh"

if [ -x "$(command -v guix)" ]; then
    export GUIX_LOCPATH="$HOME/.guix-profile/lib/locale"
    export PATH="$HOME/.config/guix/current/bin${PATH:+:}$PATH"
    export SSL_CERT_DIR="$HOME/.guix-profile/etc/ssl/certs"
    export SSL_CERT_FILE="$HOME/.guix-profile/etc/ssl/certs/ca-certificates.crt"
    export GIT_SSL_CAINFO="$SSL_CERT_FILE"
fi

export NIXPKGS="$HOME/src/git/nixpkgs"