Shell hints

Use the tree command. tree -a /mnt/1wire

1wire/ |-- 09.F05C88010000 | |-- address | |-- crc8 | |-- family | |-- id | |-- memory | |-- page.0 | |-- page.1 | |-- page.2 | |-- page.3 | |-- present | `-- type |-- 10.D11846000800 | |-- address | |-- crc8 | |-- family | |-- id | |-- present | |-- scratchpad | |-- temperature | `-- type |-- 24.50AC02000000 | |-- address | |-- counter | |-- crc8 | |-- date | |-- family | |-- flags | |-- id | |-- present | |-- running | `-- type |-- 26.3D3A15000000 | |-- VAD | |-- VDD | |-- address | |-- crc8 | |-- family | |-- humidity | |-- id | |-- page.0 | |-- page.1 | |-- page.2 | |-- page.3 | |-- page.4 | |-- page.5 | |-- page.6 | |-- page.7 | |-- present | |-- temperature | `-- type |-- 26.804215000000 | |-- VAD | |-- VDD | |-- address | |-- crc8 | |-- family | |-- humidity | |-- id | |-- page.0 | |-- page.1 | |-- page.2 | |-- page.3 | |-- page.4 | |-- page.5 | |-- page.6 | |-- page.7 | |-- present | |-- temperature | `-- type `-- DS9097U |-- address |-- port `-- version

Use ls for example to see all the temperature files: ls -1 1wire/*/temp*

1wire/10.D11846000800/temperature 1wire/26.3D3A15000000/temperature 1wire/26.804215000000/temperature

Use grep '.' for example to see all the types: grep '.' 1wire/*/type	1wire/09.F05C88010000/type:DS2502 1wire/10.D11846000800/type:DS1820 1wire/24.50AC02000000/type:DS2415 1wire/26.3D3A15000000/type:DS2438 1wire/26.804215000000/type:DS2438
to see all the temperatures:  grep '.' 1wire/*/temperature	1wire/10.D11846000800/temperature: 19.8125 1wire/26.3D3A15000000/temperature: 19.4062 1wire/26.804215000000/temperature: 19.4062

Use a bash 'for' loop on a file list. Note the use of various form of sub-command execution : deprecated back-ticks `command` and easier to match $(command). An example to show addresses and corresponding temperatures: X=$(ls 1wire/*/temperature); for f in $X; do d=$(dirname $f); echo "$(cat $d/address): $(cat $f)C"; done	10D11846000800D5: 20.0000C 263D3A1500000046: 19.6250C 2680421500000058: 19.7188C
Lets break it down: First the file list. X=`ls 1wire/*/temperature`; echo $X	1wire/10.D11846000800/temperature 1wire/26.3D3A15000000/temperature 1wire/26.804215000000/temperature
Now loop through that list, applying dirname to get the device directory. for f in $X; do echo "$f -> $(dirname $f)"; done	1wire/10.D11846000800/temperature -> 1wire/10.D11846000800 1wire/26.3D3A15000000/temperature -> 1wire/26.3D3A15000000 1wire/26.804215000000/temperature -> 1wire/26.804215000000

Write to the PIO file (Display the value before and after). cat 1wire/12.C4DF1F000000/PIO_A echo "1" > 1wire/12.C4DF1F000000/PIO_A cat 1wire/12.C4DF1F000000/PIO_A

01

Turn on the LCD (all of them) Show some text. Then flash the backlight 3 times. echo "1" > 1wire/FF*/LCDon echo "OWFS test program" > 1wire/FF*/screen16
Turn on the backlight echo "1" > /1wire/FF.3D0100000100/backlight
Flash the backlight 3 tiimes for x in {1 0 1 0 1 0} do echo $x > > /1wire/FF.3D0100000100/backlight ; sleep 1 ; done
Turn on the backlight echo "1" > /1wire/FF.3D0100000100/backlight
Show the date on the LCD: date> 1wire/FF*/screen16
Now, let's be really fancy! Loop through the temp and date: (Take advantage of the slow temperature conversion to show the date or temperature longer.) while `true` ; do \  x=`ls 1wire/*/temperature` ; \  for f  in $x ; do \   t=`cat $f`C ; \   echo "0" > 1wire/FF.3D0100000100/backlight ; \   echo "Temperature" > 1wire/FF.3D0100000100/line16.0 ; \   echo $t > 1wire/FF.3D0100000100/line16.1 ; \   echo "1" > 1wire/FF.3D0100000100\/backlight ; \  done ; \  sleep 1 ; \  echo "0" > 1wire/FF.3D0100000100/backlight ; \  date > 1wire/FF.3D0100000100/screen16 ; \  echo "1" > 1wire/FF.3D0100000100/backlight ; \ done