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10-12-2009
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read and IFS
Hi,
This is out of curiosity: I wanted to extract year, month and date from a variable, and thought that combining read and IFS would help, but this doesn't work: echo "2010 10 12" | read y m d I could extract the parts of the date when separated by a -, and setting IFS in a subshell: r=$(echo '2010-10-12' |(IFS='-'; read y m d; echo $y $m $d)) Any explanation why the first doesn't work? Thanks Raphaël |
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10-12-2009
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In ksh: Code:
echo "2010 10 12" | read y m d In Bash (and newer ksh's): Code:
read y m d <<< "2010 10 12" Using IFS: Code:
echo '2010-10-12' | IFS='-' read y m d echo $y $m $d 2010 10 12 IFS='-' read y m d <<< "2010-10-12" echo $y $m $d 2010 10 12 |
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