2015-10-30 12:34:48 +00:00
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#! /bin/bash
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# vim: set tabstop=4 shiftwidth=4 expandtab filetype=sh:
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2015-10-30 11:13:31 +00:00
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if [[ $1 == "-d" ]]; then
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shift
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setgetty=1
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else
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setgetty=
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fi
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if [[ $1 -ne 300 && $1 -ne 1200 && $1 -ne 2400 && $1 -ne 4800 && $1 -ne 9600 && $1 -ne 19200 && $1 -ne 38400 && $1 -ne 57600 && $1 -ne 115200 ]]; then
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echo 'Usage: baud [-d] 300|1200|2400|4800|9600|19200|38400|57600|115200';
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echo ' -d sets default speed for all serial port shells (takes effect on logout)'
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echo ' omitting -d makes change temporary and immediate'
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else
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if [[ $setgetty ]]; then
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sudo sed -i "s/ttyAMA0 .* /ttyAMA0 $1 /" /etc/inittab;
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sudo sed -i "s/ttyAMA0,[0-9]*/ttyAMA0,$1/g" /boot/cmdline.txt;
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sudo sed -i "s/\(ttyUSB.*\) .* /\1 $1 /g" /etc/inittab;
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sudo init q;
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sudo pkill -f "/sbin/getty"
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else
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if [[ $(tty | grep tty) ]]; then
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stty -F $(tty) $1
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fi
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fi
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fi
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echo -e "$(tput bold)$(tty) current $(stty -a -F $(tty) | grep -o 'speed .* baud')$(tput sgr0)"
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echo -e "$(tput bold)default speed at login: $(grep ttyUSB /etc/inittab | sed 's/^.*ttyUSB[^ ]* \(.*\) .*$/\1/') baud$(tput sgr0)"
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