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60 lines
2.0 KiB
Bash
Executable File
60 lines
2.0 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Copyright (C) 2014 Alexander Keller <github@nycroth.com>
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#------------------------------------------------------------------------
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if [[ -z "$INTERFACE" ]] ; then
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INTERFACE="${BLOCK_INSTANCE:-wlan0}"
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fi
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#------------------------------------------------------------------------
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COLOR_GE80=${COLOR_GE80:-#00FF00}
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COLOR_GE60=${COLOR_GE60:-#FFF600}
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COLOR_GE40=${COLOR_GE40:-#FFAE00}
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COLOR_LOWR=${COLOR_LOWR:-#FF0000}
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COLOR_DOWN=${COLOR_DOWN:-#FF0000}
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# As per #36 -- It is transparent: e.g. if the machine has no battery or wireless
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# connection (think desktop), the corresponding block should not be displayed.
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[[ ! -d /sys/class/net/${INTERFACE}/wireless ]] && exit
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# If the wifi interface exists but no connection is active, "down" shall be displayed.
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if [[ "$(cat /sys/class/net/$INTERFACE/operstate)" = 'down' ]]; then
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echo "down"
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echo "down"
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echo $COLOR_DOWN
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exit
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fi
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#------------------------------------------------------------------------
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QUALITY=$(iw dev ${INTERFACE} link | grep 'dBm$' | grep -Eoe '-[0-9]{2}' | awk '{print ($1 > -50 ? 100 :($1 < -100 ? 0 : ($1+100)*2))}')
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#------------------------------------------------------------------------
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echo $QUALITY% # full text
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echo $QUALITY% # short text
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# color
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if [[ $QUALITY -ge 80 ]]; then
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echo $COLOR_GE80
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elif [[ $QUALITY -ge 60 ]]; then
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echo $COLOR_GE60
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elif [[ $QUALITY -ge 40 ]]; then
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echo $COLOR_GE40
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else
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echo $COLOR_LOWR
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fi
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