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Old 02-19-2011, 08:46 AM   #1
sujitkulkarni
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Registered: Feb 2011
Location: Pune, India
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Unable to use gcc


Hey, I am trying to use gcc. I need to compile a C prog. But I am unable to do. I have done this:

Code:
sujit@sujit-desktop:~$ gcc -Wall test.c
gcc: test.c: No such file or directory
gcc: no input files
sujit@sujit-desktop:~$
I even googled for this. But I think I am making some mistakes in specifying path. Plz assist!!
 
Old 02-19-2011, 08:56 AM   #2
goodhombre
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Hi,

test if the the file is in the current directory before compiling it:
Code:
ls test.c
 
Old 02-19-2011, 08:59 AM   #3
sujitkulkarni
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umm i tried! but it says:
Code:
sujit@sujit-desktop:~$ ls test.c
ls: cannot access test.c: No such file or directory
well, the file test.c is on my desktop! so any clue?
 
Old 02-19-2011, 09:05 AM   #4
goodhombre
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Hi,

Likely you are in the you home directory.
Try:
Code:
cd Desktop
ls test.c
You ca find out which is the current working directory by using pwd command.

To switch to you home directory use ~
Code:
cd ~
cd Desktop
ls test.c
gcc -Wall test.c
 
1 members found this post helpful.
Old 02-19-2011, 09:07 AM   #5
sujitkulkarni
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Thanks it worked! THX A LOT!!!!!!!!!!!!
Code:
sujit@sujit-desktop:~$ cd Desktop
sujit@sujit-desktop:~/Desktop$ ls test.c
test.c
sujit@sujit-desktop:~/Desktop$ gcc -Wall test.c
sujit@sujit-desktop:~/Desktop$
NOW HOW TO RUN THE PROG?
 
Old 02-19-2011, 09:15 AM   #6
sujitkulkarni
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Question

Also tell me, does conio.h and void main() work? coz it is giving me error, and its asking for int main() instead of void main().

Code:
/* FILE: test.c */
#include <stdio.h>

void main()
{
	printf("Hi!!!!!!!!!");
	
}
 
Old 02-19-2011, 09:15 AM   #7
brianL
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Try this:
Code:
gcc -Wall test.c -o test
./test
 
Old 02-19-2011, 09:17 AM   #8
goodhombre
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Hi,

Try :
Code:
chmod +x a.out
./a.out
You can specify the name of the output file by using -o option.
Code:
gcc -Wall test.c -o test.out
In most on the cases you have to make file executable using chmod +x , see man chmod form more details.
 
Old 02-19-2011, 09:23 AM   #9
goodhombre
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Quote:
Originally Posted by sujitkulkarni View Post
Also tell me, does conio.h and void main() work? coz it is giving me error, and its asking for int main() instead of void main().
conio.h doesn't exist under linux , you can use system("clear"); instead of clrscr().
Regarding void main , that is just a warning message, you can ignore him.
 
Old 02-19-2011, 09:26 AM   #10
TheIndependentAquarius
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Quote:
Originally Posted by brianL View Post
Try this:
Code:
gcc -Wall test.c -o test
./test
Wow! I never knew you were a programmer too!
 
Old 02-19-2011, 09:27 AM   #11
goodhombre
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Lol
 
Old 02-19-2011, 09:52 AM   #12
brianL
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Quote:
Originally Posted by Anisha Kaul View Post
Wow! I never knew you were a programmer too!
That's about my limit as far as programming goes. I can edit "Hello World" programs (any language) to output "Hello Brian, you handsome devil!".
 
Old 02-19-2011, 02:11 PM   #13
ntubski
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Quote:
Originally Posted by brianL View Post
That's about my limit as far as programming goes. I can edit "Hello World" programs (any language) to output "Hello Brian, you handsome devil!".
Any language, even BF?
Code:
 ++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<<+++++++++++++++.>.+++.------.--------.>+.>.

Last edited by GrapefruiTgirl; 02-20-2011 at 08:59 AM. Reason: Changed to "BF" for language reasons ;)
 
Old 02-19-2011, 03:59 PM   #14
jayjwa
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What about LOLCODE?
 
Old 02-20-2011, 12:27 AM   #15
sujitkulkarni
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Thumbs up Thanks

thanks to everybody for answering me!
So the moral of the story is,
u get o/p by issuing ./filename or
chmod +x a.out
./a.out

commands. isnt it?
Also can I know how and why a.out is created?
 
  


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