Pejman Moghadam / C-programming

C - Using file descriptors 1 and 2 instead stdout and stderr

Public domain

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#include <unistd.h>

main()
{
        write(1, "This is stdout \n",16);
        write(2, "This is stderr \n",16);
}

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Output

$ ./a.out 
This is stdout 
This is stderr 

$ ./a.out > test.out
This is stderr 

$ cat test.out 
This is stdout 

$ ./a.out 2> test.out
This is stdout 

$ cat test.out 
This is stderr 

$ ./a.out &> test.out

$ cat test.out 
This is stdout 
This is stderr 

$ ./a.out > test.out 2>&1

$ cat test.out 
This is stdout 
This is stderr

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BY: Pejman Moghadam
TAG: c, stdout, stderr, write
DATE: 2011-06-01 13:38:26

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