69 lines
1.5 KiB
Text
69 lines
1.5 KiB
Text
echo " a " | (read x; echo "$x.")
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echo " a b " | ( read x y ; echo -"$x"-"$y"- )
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echo " a b\ " | ( read x y ; echo -"$x"-"$y"- )
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echo " a b " | ( read x ; echo -"$x"- )
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echo " a b\ " | ( read x ; echo -"$x"- )
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echo " a b\ " | ( read -r x y ; echo -"$x"-"$y"- )
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echo " a b\ " | ( read -r x ; echo -"$x"- )
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echo "\ a b\ " | ( read -r x y ; echo -"$x"-"$y"- )
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echo "\ a b\ " | ( read -r x ; echo -"$x"- )
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echo " \ a b\ " | ( read -r x y ; echo -"$x"-"$y"- )
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echo " \ a b\ " | ( read -r x ; echo -"$x"- )
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echo "A B " > /tmp/IN
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unset x y z
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read x y z < /tmp/IN
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echo 1: "x[$x] y[$y] z[$z]"
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echo 1a: ${z-z not set}
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read x < /tmp/IN
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echo 2: "x[$x]"
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rm /tmp/IN
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# this is where the bash `read' behavior with respect to $REPLY differs
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# from ksh93
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echo "A B " > /tmp/IN
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read < /tmp/IN
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echo "[$REPLY]"
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rm /tmp/IN
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echo " A B " > /tmp/IN
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read < /tmp/IN
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echo "[$REPLY]"
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rm /tmp/IN
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# make sure that read with more variables than words sets the extra
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# variables to the empty string
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bvar=bvar
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cvar=cvar
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echo aa > /tmp/IN
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read avar bvar cvar < /tmp/IN
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echo =="$avar"==
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echo =="$bvar"==
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echo =="$cvar"==
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rm /tmp/IN
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# test behavior of read with various settings of IFS
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echo " foo" | { IFS= read line; recho "$line"; }
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echo " foo" | { IFS= ; read line; recho "$line"; }
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echo " foo" | { unset IFS ; read line; recho "$line"; }
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echo " foo" | { IFS=$'\n' ; read line; recho "$line"; }
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echo " foo" | { IFS=$' \n' ; read line; recho "$line"; }
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echo " foo" | { IFS=$' \t\n' ; read line; recho "$line"; }
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echo " foo" | { IFS=$':' ; read line; recho "$line"; }
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