I am writing a (test) shell script to dump the temps reported by several sensors to my LCD, but I think it's trying to display the CR/LF at the end. When I change the message to something via OWhttpd it works fine (no trailing char), but echoing something to the message file via OWFS it seems to add a char at the end that seems to be non-printable.
Should I be doing this differently (instead of echoing it) or can we add apply a filter to the text sent to the message & screen files so that non-printable chars are stripped & not displayed? -Scott Here's my script: ------------------------ #!/bin/sh cd /home/scott/ow/uncached while : do temp1=10.225F0=`cat uncached/10.225FB6000800/temperature | sed 's/^[ \t]*//; s/[:cntrl:]//'`F #This doesn't work to strip CR/LF either # temp1=10.225F0=`cat uncached/10.225FB6000800/temperature | sed 's/^[ \t]*//; s/\n//'`F echo $temp1 # echo "10.225F0=`cat uncached/10.225FB6000800/temperature|sed 's/^[ \t]*//'`F" echo "$temp1" >> 29.6EA701000000/LCD_H/message # echo $temp1 >> 29.6EA701000000/LCD_H/message echo " " sleep 2 echo "28.F7668=`cat uncached/28.F76689000000/temperature|sed 's/^[ \t]*//'`F" echo "28.F7668=`cat uncached/28.F76689000000/temperature|sed 's/^[ \t]*//'`*F" \ > 29.6EA701000000/LCD_H/message echo "---" sleep 2 done ---------------- STD Output is: ---------------- 10.225F0=71.0375F 28.F7668=70.7F --- 10.225F0=71.0375F 28.F7668=70.8125F --- ....... ----------------------- LCD outout example: ----------------------- 10.225F0=71.0375F█ (the last character is really alternating on/off horizontal bars) ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Owfs-developers mailing list Owfs-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/owfs-developers
