Shell Programming and Scripting

one two three four
man women
yes no place togo
bad sleep

for $linecont in $(cat $filename); do
echo $linecont > temp
line1='cat temp|awk -F ' ' '{print $3;}'`
if [$line1 = ""] then
echo $linecont > file2
else
echo $linecont > file4
fi

awk 'NF==2{print > "file2"; next}{print > "file4"}' $filename

>file2
>file4
while read line
do
   set -- $line
   if [ $# -eq 2 ]
   then
      echo "$line" >> file2
   else
      echo "$line" >> file4
   fi
done < $filename

awk '{if(NF==2) print $0}' <file_name>

awk '{if(NF!=2) print $0}' <file_name>

select one from two;
select yes from no;

select three from four;
select place from togo;

while read linecont
do
line1=`echo $linecont|awk -F ' ' '{print $3;}'`
if [ "$line1" = "" ] 
then
echo $linecont >> file2
else
echo $linecont >> file4
fi
done<$filename

awk 'NF==2{print > $file1; next}{print > $file2}' $filename