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aaronmk
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#!/bin/bash
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131
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aaronmk
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# Sets a password environment variable
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291
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aaronmk
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self="$(readlink -f -- "$BASH_SOURCE")"
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293
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aaronmk
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force=
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test _"$1" = _- && { force=1; shift;}
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292
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aaronmk
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251
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aaronmk
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test "$#" -ge 1 || \
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291
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aaronmk
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{ echo "Usage: . $self env_var_name [msg] (note initial \".\")" >&2; exit 2;}
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131
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aaronmk
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251
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aaronmk
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msg="$2"
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test -n "$msg" || msg="$1"
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290
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aaronmk
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function trace()
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{
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{ for arg in "$@"; do printf "%q " "$arg"; done; echo;} >&2
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}
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293
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aaronmk
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if test -n "$force" -o -z "${!1+t}"; then # env var with name $1 is unset
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if test -n "$force"; then action="change the saved value for"
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else action="avoid having to reenter"
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292
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aaronmk
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fi
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293
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aaronmk
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echo "[7m To $action $msg password, run: [0m" >&2
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trace . "$self" - "$@"
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251
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aaronmk
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read -s -p "Enter $msg password: "; echo
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131
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aaronmk
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export "$1"="$REPLY"
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fi
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