Shell Programming and Scripting

while (i=0;i <= 10 ; i++)
           while (a=0; a <= 5 ; a++)
            end
end

$ cat afile
1
2
3
4
5
6
7
8
9
10

$ cat bfile
24
25
26
27
28

$ ./justdoit afile bfile
 
first file is printing screen (!-> only first line)...
--------------------------------
1. line of '(afile)'  -> 1
 
second file is printing screen...
--------------------------------
1. line of '(bfile)'  -> 24
2. line of '(bfile)'  -> 25
3. line of '(bfile)'  -> 26
4. line of '(bfile)'  -> 27
5. line of '(bfile)'  -> 28
 
first file go on next lines...
--------------------------------
2. line of '(afile)'  -> 2
3. line of '(afile)'  -> 3
4. line of '(afile)'  -> 4
5. line of '(afile)'  -> 5
6. line of '(afile)'  -> 6
7. line of '(afile)'  -> 7
8. line of '(afile)'  -> 8
9. line of '(afile)'  -> 9
10. line of '(afile)'  -> 10

$ cat justdoit
## -> justdoit <- ##
#!/bin/csh

set i=1
set a=1
echo "\nfirst file is printing screen (\!-> only first line)..."
echo "--------------------------------"
 while ( $i <= 10 )
   echo "$i. line of '($1)'  ->" ` cat "$1" | head -$i | tail -1`
   @ i++
if ( $i == 2 ) then
echo ""
echo "second file is printing screen..."
echo "--------------------------------"
    endif
     while ( $a <= 5 )
    echo "$a. line of '($2)'  ->" `cat "$2" | head -$a | tail -1`
    @ a++
    end
if ( $i == 2 ) then
echo "\nfirst file go on next lines..."
echo "--------------------------------"
    endif
end
echo ""