Read the values from a file and write in the output file with som string.

[Saravanan Mrajan]

if the input file contains

454545
090900
343434
and the output would look like,

The first value is 454545
The second value is 090900
The third value is 343434

what is the shell script i can try?

[Stefan Wagner]

ar=("first" "second" "third"); 
n=0; 
for i in $( < data) ; do
    echo The ${ar[n]} value is: $i ; n=$((n+1))
done 

[Saravanan Mrajan]

Stefan Wagner wrote:

ar=("first" "second" "third"); 
n=0; 
for i in $( < data) ; do
    echo The ${ar[n]} value is: $i ; n=$((n+1))
done 

Thanks. i wrote the script using awk. anyway i will try this code.

can you explain this a little?

[Stefan Wagner]

ar=("first" "second" "third"); 
n=0; 
for i in $( < data) ; do
    echo The ${ar[n]} value is: $i 
    n=$((n+1))
done 

Line 1 defines and initializes an array of Strings.
Line 2 init counter n
Line 3 is the head of a for-loop, which reads line by line from the file 'data'.
Line 4 prints to stdout, using the array
Line 5 increases the counter n
Line 6 end of loop