echo " a " | (read x; echo "$x.") echo " a b " | ( read x y ; echo -"$x"-"$y"- ) echo " a b\ " | ( read x y ; echo -"$x"-"$y"- ) echo " a b " | ( read x ; echo -"$x"- ) echo " a b\ " | ( read x ; echo -"$x"- ) echo " a b\ " | ( read -r x y ; echo -"$x"-"$y"- ) echo " a b\ " | ( read -r x ; echo -"$x"- ) echo "\ a b\ " | ( read -r x y ; echo -"$x"-"$y"- ) echo "\ a b\ " | ( read -r x ; echo -"$x"- ) echo " \ a b\ " | ( read -r x y ; echo -"$x"-"$y"- ) echo " \ a b\ " | ( read -r x ; echo -"$x"- ) # make sure that CTLESC and CTLNUL are passed through correctly echo $'\001' | ( read var ; recho "$var" ) echo $'\001' | ( read ; recho "$REPLY" ) echo $'\177' | ( read var ; recho "$var" ) echo $'\177' | ( read ; recho "$REPLY" ) # make sure a backslash-quoted \\n still disappears from the input when # we're not reading in `raw' mode, and no stray CTLESC chars are left in # the input stream echo $'ab\\\ncd' | ( read ; recho "$REPLY" ) echo "A B " > /tmp/IN unset x y z read x y z < /tmp/IN echo 1: "x[$x] y[$y] z[$z]" echo 1a: ${z-z not set} read x < /tmp/IN echo 2: "x[$x]" rm /tmp/IN # this is where the bash `read' behavior with respect to $REPLY differs # from ksh93 echo "A B " > /tmp/IN read < /tmp/IN echo "[$REPLY]" rm /tmp/IN echo " A B " > /tmp/IN read < /tmp/IN echo "[$REPLY]" rm /tmp/IN # make sure that read with more variables than words sets the extra # variables to the empty string bvar=bvar cvar=cvar echo aa > /tmp/IN read avar bvar cvar < /tmp/IN echo =="$avar"== echo =="$bvar"== echo =="$cvar"== rm /tmp/IN # test behavior of read with various settings of IFS echo " foo" | { IFS= read line; recho "$line"; } echo " foo" | { IFS= ; read line; recho "$line"; } echo " foo" | { unset IFS ; read line; recho "$line"; } echo " foo" | { IFS=$'\n' ; read line; recho "$line"; } echo " foo" | { IFS=$' \n' ; read line; recho "$line"; } echo " foo" | { IFS=$' \t\n' ; read line; recho "$line"; } echo " foo" | { IFS=$':' ; read line; recho "$line"; } # test read -d delim behavior ${THIS_SH} ./read1.sub # test read -t timeout behavior ${THIS_SH} ./read2.sub # test read -n nchars behavior ${THIS_SH} ./read3.sub