I like to append the first line of a file with some value.
file1.dat
2111111111 23498ljljkj
2222222222 234kjkjs9
2333333333 98234lkjs
2444444444 0923skdfj
i want to append some value eg: 1200910270040625 to the file1.dat how to do this in KSH
I should have the outfile file2.txt
1200910270040625
2111111111 23498ljljkj
2222222222 234kjkjs9
2333333333 98234lkjs
2444444444 0923skdfj