Shell Programming and Scripting

#cat html.txt
db1 10 10g
db2 20 20g
#

#cat script.sh
#!/bin/sh
echo "Details"
for i in `cat html.txt`
do
  c1=`echo "$i"|awk '{print $1}'`
  c2=`echo "$i"|awk '{print $2}'`
  c3=`echo "$i"|awk '{print $2}'`
  echo "$c1:$c2:$c3"
done
#

Details
db1::
10::
10g::
db2::
20::
20g::

Details
db1:10:10g
db2:20:20g

tr ' ' ':' <  html.txt

 
#!/bin/ksh
exec 9</tmp/html.txt
while read -u9 dataline
do
  c1=`echo "$dataline"|awk -F' ' '{print $1}'`
  c2=`echo "$dataline"|awk -F' ' '{print $2}'`
  c3=`echo "$dataline"|awk -F' ' '{print $3}'`
  echo "|$c1|$c2|$c3|"
done
exec 9<&-

 
output
 
|db1|10|10g|
|db2|20|20g|

#cat script.sh
#!/bin/sh
echo "Details"
for i in `cat html.txt`
do
  c1=`echo "$i"|awk '{print $1}'`
  c2=`echo "$i"|awk '{print $2}'`
  c3=`echo "$i"|awk '{print $2}'`
  echo "$c1:$c2:$c3"
done
#

while read c1 c2 c3
do
        echo "${c1}:${c2}:${c3}"
done < html.txt

$ cat script1.sh
#!/bin/sh
while read c1 c2 c3
do
        file1="${c1}-${c2}-${c3}"
for i in $file1
do
  c1=`echo "$i"|awk -F '-' '{print $1}'`
  c2=`echo "$i"|awk -F '-' '{print $2}'`
  c3=`echo "$i"|awk -F '-' '{print $3}'`
  echo "$c1:$c2:$c3"
done
done < html.txt

$ cat script2.sh
#!/bin/sh
file='html.txt'
file1=`tr ' ' '-' < $file`
for i in $file1
do
  c1=`echo "$i"|awk -F '-' '{print $1}'`
  c2=`echo "$i"|awk -F '-' '{print $2}'`
  c3=`echo "$i"|awk -F '-' '{print $3}'`
  echo "$c1:$c2:$c3"
done