03-04-2008
To explain this better:
You write the program into a file called "cprog.c".
Then after you execute "gcc cprog.c -o cprog", use the command "ls" to list the current files in the directory ("man ls" for more info).
You should see a file called "cprog". This file cprog was created when you did the "gcc cprog.c -o cprog", and this command means that you use the program gcc (gnu c compiler) on the c source file "cprog.c". Then the "-o" means to output the binary file to "cprog". If you hadn't used "-o", gcc would have generated a file called "a.out". ("man gcc" for more info)
Lastly, you can execute the file "cprog" by typing "./cprog" into the terminal. This means to check the directory "./" (which means the current directory that you are in) for the file "cprog". If you didn't specify that "cprog" was in "./", then the operating system would have assumed "cprog" was in "/usr/bin" or another directory (if you want to know type "$PATH" into your terminal).
Does that explain things clearly?
10 More Discussions You Might Find Interesting
1. Programming
Hi Guys.
I have downloaded metamail from internet e Iīm trying to compile it at a SCO 5.0.5. In this server itīs working fine (letīs name it as mission1)
iīm using the developer package in this server (mission1) and when I use mailto, i got the e-mail fine. Itīs forwarding to a exchange server... (2 Replies)
Discussion started by: ahnishimi
2 Replies
2. Solaris
I'm trying to install the jed text editor on a SunOS 5.10 box. It depends on the s-lang library, which I installed to ~/lib. I'm trying to install jed to ~/jed (it's a box @ my university, so I don't have rights to install globally), but when I run make I get this error:
It looks like it... (1 Reply)
Discussion started by: iandunn
1 Replies
3. Solaris
PowerDNS is true Power of Internet Name Management. http://www.powerdns.com
Now, I compile it on my SunOS system (SunOS 5.8 Generic_117350-05 sun4u sparc SUNW,Ultra-5_10).
./configure -- no error
make --> it has error:
<i> make: Fatal error: Command failed for target... (0 Replies)
Discussion started by: secret4all
0 Replies
4. Programming
hi
i am having a problem that when ever i use
cc program_name.c
to compile a program. an error occurs, showing cc not found.
please help. (28 Replies)
Discussion started by: rochitsharma
28 Replies
5. Solaris
Hello, I am trying to install glib on my development box - with little/no luck. Below are some details of the box:
SunOS 5.8 Generic_117350-38 sun4u sparc SUNW,Ultra-Enterprise
gcc version 2.95.2 19991024 (release)
GNU Make version 3.78.1, by Richard Stallman and Roland McGrath.
Glib version:... (2 Replies)
Discussion started by: tetley
2 Replies
6. Programming
here is the very simple bob.c:
main()
{
printf("hello");
}
i use tiger and i use the command:
gcc bob.c
and the end result:
bob.c: In function main':
bob.c:3: warning: incompatible implicit declaration of built-in function /printf'
any help appreciated, i'm just starting... (4 Replies)
Discussion started by: cleansing_flame
4 Replies
7. HP-UX
Hi
When im trying to do make --version and make --help in HP-UX
it throws error
Make: Unknown flag argument -. Stop.
a soft link is present in this directory /usr/bin/make
and hard link is in /usr/ccs/bin/make
what could be the reason can any1 ..please tell me how to solve this... (1 Reply)
Discussion started by: vasanthan
1 Replies
8. UNIX for Dummies Questions & Answers
People i download the lastest version of samba i`am tryng to compile it in a solaris 9 i'm reading the how to of samba, i am in the first step making the autogen.sh but show me this when i do ./autogen.sh
./autogen.sh: running script/mkversion.sh
./script/mkversion.sh: 'include/version.h'... (0 Replies)
Discussion started by: enkei17
0 Replies
9. Programming
Ok I was trying to test if I installed correctly gsl, I followed the INSTALL file and still I don't know what is wrong. Here is a sample code to test gel,I got it from Random Number Generator Examples - GNU Scientific Library -- Reference Manual
(note: made a few changes in the code)
#include... (2 Replies)
Discussion started by: joseamck
2 Replies
10. AIX
Hi
We meet errors while running configuration scripts to prepare compiling source code on AIX 7.2. This error does not happen on AIX5.3 and AIX6.1
With the “/usr/bin/sh” from AIX7.2, sometimes , the script runs sucessfully, sometimes not. It’s unstable, and I don’t know why.
When... (10 Replies)
Discussion started by: bobochacha29
10 Replies
LEARN ABOUT DEBIAN
tigexp
TIGEXP(8) Administrator Commands TIGEXP(8)
NAME
tigexp - UNIX Security Checker Explanation Generator
SYNOPSIS
tigexp msgid [msgid[msgid...]]
tigexp [-f|-F] [security_report]
DESCRIPTION
Tigexp is used to generate explanations of the output from the Tiger security checking package. In the first form, tigexp will generate an
explanation of each of the message ids listed. In the second form, the security report specified will be scanned and explanations gener-
ated. The -f option will generate one explanation for each unique message id in the security report, whereas the -F option will output the
security report with explanations inserted after each entry in the report.
There are five different message levels produced by Tiger. Each of the message levels is the last letter of the message id. The levels are:
ALERT A message of this level indicates that Tiger has detected a possible intrusion attempt or troublesome misconfiguration which can
expose the whole system to attacks.
FAIL Messages of this level indicate a violation of a generic security policy or a possible intrusion. Appropriate action should be taken
to fix this security issue.
WARN Messages of this level indicate a security issue which should be checked further and might indicate a probable vulnerability or
exposure. Most Tiger messages appear in this category.
INFO These includes information messages which are not necessarily a security violation but might be useful for the administrator. Note
that the tigerrc configuration file through the Tiger_Show_INFO_Msgs option determines whether or not Tiger shows these items. The
default behaviour is to not show them.
ERROR These messages are errors in the execution of Tiger (or any of its scripts), this is probably due to a misconfiguration in the pro-
gram, because of a problem in the installation or because a file needed for the test is missing. The script who outputs this error
should be investigated further.
CONFIG Messages with this level inform of stages in the configuration process of Tiger. They are not errors (otherwise ERROR would be used)
but notices for the user running the program explaining, for example, which configuration might be used.
OPTIONS
-f Scan the indicated security report and generate explanations of it. One explanation will be generated for each unique message id in
the security report. If the name of a security report is not given, then the report is read from stdin.
-F Output the indicated security report with explanations inserted after each entry in the report. If the name of a security report is
not given, then the report is read from stdin.
FILES
$TIGERHOMEDIR/doc/explain.idx
SEE ALSO
tiger(8)
BUGS
If the explanation index is out of date, it doesn't recognize it and generates junk.
Security 12 August 2003 TIGEXP(8)