Blog Rss Feedanykey() { stty cbreak -echo KEY=`dd bs=1 count=1 2>/dev/null` stty -cbreak echo echo $KEY }
Usage:
echo -n "Press any key: " && anykey
Read a single character in shell
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Sometime as IT we need to develop shell script who interact with end users (yeuk). In these programs you may want to ask the user question like press any key to continue. Also for ease of use you may want to ask them to press the key Y or N to confirm or not an action, without asking them to press return each time you ask a question. Here an example on how to do that in your favorite shell.
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This article has been posted on Apr 07, 2009 by
Fred Cirera @ 07:35.
Comments
Posted by: Kb Jul 07, 2009 @ 01:58
You could also use "read -n 1 -p "Press any key: " instead of echo command and anykey() function. (see bash 'SHELL BUILTIN COMMANDS')
Posted by: Stéphane Jul 14, 2009 @ 12:12
ksh offers similar feature: read -n1 uchoice?"Choose: " It will print the message and store the key into uchoice. Is the 'cbreak' option better than a trap? At least it looks easy to set/unset.
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Good shell code friend. Thank you.
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ksh offers similar feature: read -n1 uchoice?"Choose: " It will print the message and store the key into uchoice. Is the 'cbreak' option better than a trap? At least it looks easy to set/unset.
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Does that actually work for echo -n "Press any key: " && anykey?
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It is Ok, but i can implement it. I don t know why.
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