thanks but...where can i find the defination of the exec() family of funtions...
unistd.h has the following...and they seem to be more like declarations than definations...
Code:
/* Replace the current process, executing PATH with arguments ARGV and
environment ENVP. ARGV and ENVP are terminated by NULL pointers. */
extern int execve (__const char *__path, char *__const __argv[],
char *__const __envp[]) __THROW __nonnull ((1));
#ifdef __USE_GNU
/* Execute the file FD refers to, overlaying the running program image.
ARGV and ENVP are passed to the new program, as for `execve'. */
extern int fexecve (int __fd, char *__const __argv[], char *__const __envp[])
__THROW;
#endif
/* Execute PATH with arguments ARGV and environment from `environ'. */
extern int execv (__const char *__path, char *__const __argv[])
__THROW __nonnull ((1));
/* Execute PATH with all arguments after PATH until a NULL pointer,
and the argument after that for environment. */
extern int execle (__const char *__path, __const char *__arg, ...)
__THROW __nonnull ((1));
/* Execute PATH with all arguments after PATH until
a NULL pointer and environment from `environ'. */
extern int execl (__const char *__path, __const char *__arg, ...)
__THROW __nonnull ((1));
/* Execute FILE, searching in the `PATH' environment variable if it contains
no slashes, with arguments ARGV and environment from `environ'. */
extern int execvp (__const char *__file, char *__const __argv[])
__THROW __nonnull ((1));
/* Execute FILE, searching in the `PATH' environment variable if
it contains no slashes, with all arguments after FILE until a
NULL pointer and environment from `environ'. */
extern int execlp (__const char *__file, __const char *__arg, ...)
__THROW __nonnull ((1));
Is there any facility to filter/identify the data calls and voice calls coming throug modem?
OR
Can we get the data or voice calls information through a script(preferably C Kermit)? (0 Replies)
Hi,
I compiled with no error a C program, than I tryed to execute it and than I get this error:
connessione al server fallita: Address family not supported by protocol family
What does it mean?
Why I get this error only on Mac os x while on Ubuntu the program works?
The code is:... (3 Replies)
Hi, experts.
Whould anybody clear explay me difference and usage of these 3 commands (particulary in bash) :
exec
eval
source
I've tryed to read the manual pages but did not get much.
Also could not get something useful from Google search - just so much and so not exactly, that is... (3 Replies)
hello
is there a family tree, or words that would illustrate the family tree of,
Unix -> Linux
As i would understand Unix, it is a OS.
And Linux is a ?, is Linux a OS or a sub structure inside of the Unix OS ?.
Have you ever seen one of those family tree`s where ma and pa are shown at... (3 Replies)
I have the following bash script lines in a file named test.sh.
#!/bin/bash
#
# Write Date to cron.log
#
echo "Begin SSI Load $(date +%d%b%y_%T)"
#
# Get the latest rates file for processing.
#
d=$(ls -tr /rms/data/ssi | grep -v "processed" | tail -n 1)
filename=$d
export filename... (3 Replies)
Hi
i am in learning phase of unix.
i was going through exec in a unix book. below is the command
exec n>file
exec n>>file
however when i used the exec command like below , where ex is the file name
exec 2>>exand then do ls -lrt then again when i do the ls -lrt to see the size of the file... (3 Replies)
Hi,
I am studying exec family of functions.Its man page says,it replaces the current process image with a new process image. If it replaces the binary,then after returning back,how does it get the previous parameters of the process which called exec?As replacing process image means replacing all... (1 Reply)
Hi,
I am studying exec family of functions.Its man page says,it replaces the current process image with a new process image. If it replaces the binary,then after returning back,how does it get the previous parameters of the process which called exec?As replacing process image means replacing... (5 Replies)
# Erroneous question, so can be removed. (0 Replies)
Discussion started by: beginnerboy
0 Replies
LEARN ABOUT SUSE
getexecname
getexecname(3C) Standard C Library Functions getexecname(3C)NAME
getexecname - return pathname of executable
SYNOPSIS
#include <stdlib.h>
const char *getexecname(void);
DESCRIPTION
The getexecname() function returns the pathname (the first argument of one of the exec family of functions; see exec(2)) of the executable
that started the process.
Normally this is an absolute pathname, as the majority of commands are executed by the shells that append the command name to the user's
PATH components. If this is not an absolute path, the output of getcwd(3C) can be prepended to it to create an absolute path, unless the
process or one of its ancestors has changed its root directory or current working directory since the last successful call to one of the
exec family of functions.
RETURN VALUES
If successful, getexecname() returns a pointer to the executables pathname; otherwise, it returns 0.
USAGE
The getexecname() function obtains the executable pathname from the AT_SUN_EXECNAME aux vector. These vectors are made available to dynam-
ically linked processes only.
A successful call to one of the exec family of functions will always have AT_SUN_EXECNAME in the aux vector. The associated pathname is
guaranteed to be less than or equal to PATH_MAX, not counting the trailing null byte that is always present.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|MT-Level |Safe |
+-----------------------------+-----------------------------+
SEE ALSO exec(2), getcwd(3C), attributes(5)SunOS 5.10 17 Dec 1997 getexecname(3C)