Shell Programming and Scripting

I have two files:

The number of lines in both files are always same.

I could get these specific lines from a huge data file, but what I want to do now is take first line of file1 which is 1 and print first line of file2 which is 'a' one time, similarly letter 'b' from file2 corresponding to file1 2 times and so on. Any suggestions or hints?.

awk 'NR==1' file1 | print $1== ---not sure here

Any help?.

file1:
1
2
3
4
5
6

file2:
a
b
c
d
e
f

awk 'BEGIN{ while ( getline < "secondfile" ) { arr[i++]=$0 } }{ print arr[j++], $1 }' firstfile

or try like this

nawk 'BEGIN {

while ( getline < "f1" ) {arr[i++] = $0 }
}

{ print arr[j++], $0 }' f2

I'm not sure what you want to do, perheaps :

Code:

awk '
NR==FNR {
   arr[FNR] = $1;
   next;
}
{
   for (i=1; i<=arr[FNR]; i++)
      print $0;
}
' f1 f2

Output:

Code:

a
b
b
c
c
c
d
d
d
d
e
e
e
e
e
f
f
f
f
f
f

Jean-Pierre.

or try like this

nawk 'BEGIN {

while ( getline < "f1" ) {arr[i++] = $0 }
}

{ print arr[j++], $0 }' f2

====> In this case it just prints both lines 1 and 2




awk '
NR==FNR {
arr[FNR] = $1;
next;
}
{
for (i=1; i<=arr[FNR]; i++)
print $0;
}
' f1 f2

===> it does not print anything at all

Then I tried


awk '
NR==FNR {
arr[FNR] = $1;
next;
}
{
for (i=1; i<=arr[FNR]; i++) }
{ print $0;
}
' f1 f2

===> now it prints f1 and f2...does not print the way I want the output to be. Any comments?. Am I missing anything?

do u want output like this

$ cat f1
1
2
3
4
5
6

$ cat f2
a
b
c
d
e
f

output below

$ 2files.s
1 a
2 b
3 c
4 d
5 e
6 f

I am very surprised, how can you ge a result since the awk program is invalid:

Code:

$ awk '
> NR==FNR {
> arr[FNR] = $1;
> next;
> }
> {
> for (i=1; i<=arr[FNR]; i++) }
> { print $0;
> }
> ' f1 f2
awk: cmd. line:7: for (i=1; i<=arr[FNR]; i++) }
awk: cmd. line:7:                             ^ syntax error
$

Please show us the required output.

Jean-Pierre.