write to .txt file in columns

How could I write to a text file so that it appears in column format? This is for a .log file.

It should look something like this:

Code:

---

<date>                <address>        <file>
021125                11.34.56.156        /thisdir/thisfile
021126                5.12.15.12        /thatdir/thatfile
....

---

Is there a function for this or do I need to write one?

Thanks in advance,

Seron

Yes there is a function: fprintf (read the - (negative) flag)

fprintf(fp,"%s\t%d\t%d\n",nm,level,points);
This is an example :)

I think, this should work.

A tab doesn't always work.

What about a normal fprintf with - (negative flag)?

Code:

---

printf("[%-20s] [%-20s] [%-20s]\n", "aaa", "aaaaaa", "a");
printf("[%-20s] [%-20s] [%-20s]\n", "bbbbbbbbbb", "b", "bbbbb");

---

Output:

Code:

---

[aaa                ] [aaaaaa              ] [a                  ]
[bbbbbbbbbb          ] [b                  ] [bbbbb              ]

---

many thanks to you all