Hi I want to implement the nice command in the shell that I am building. I came to know that there is a corresponding nice() system call for the same. But since I will be forking different processes to run different commands typed on the command prompt, is there any way I can make a command... (2 Replies)
Hi,
I am trying to implement SSH between two systems say ukblx151 & ukapx047 with ID say khzs228, i follow the following process:
Step-1) $ ssh-keygen -t rsa -f rsa
Generating public/private rsa key pair.
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your... (9 Replies)
Hi,
Ho do I differentiate system call from library call?
for example if I am using chmod , how do I find out if it is a system call or library call?
Thanks
Muru (2 Replies)
Hey everyone,
I've been trying to use the system(cmd) call in C to tar multiple files together.
When i do so i specify the absolute paths of the tar file as well as the files to be included in the tar file.
Eg: system("tar -cf /tmp/example.tar /mnt/john/1.xml");
system("tar -uf... (5 Replies)
I have a .bat file on windows, which converts a .xls file into .csv file and using a ksh script i would usually FTP this .csv file...
Now i want to trigger this .bat form my ksh script.
can i use rsh command in my FTP to run .bat file on windows and then ftp the generated .csv file...is... (19 Replies)
Hi,
I would like to get the output of below command emailed to me in a windows2003 server.
"bpimagelist -hoursago 24 -U"
I will be using "blat" to email the output of this command.But not sure how the above command is called for in a batch file when executed.
Would appreciate if... (1 Reply)
Hi every one,
i have to dot pc files. One have main function but one dont have.I have to call dot pc file using system () cmd.File is being call have main function.Please let me know how i can call .pc file with two arguments from other dot pc file.I want some thing like
sprintf(buf,... (1 Reply)
Hi Gurus,
I have scheduled a script using cron scheduler. Script works fine when i run it manually. But it gives the following error in cron log.
stty: tcgetattr: A specified file does not support the ioctl system call.
I have given the following statement in cron.
0-59 * * * *... (5 Replies)
Hello experts,
I have a perl script which looks for the ARGV and then loads the data as per it.
Example.
#Checking the server to connect
if ($ARGV eq 'QA')
{
$ENV{"ORACLE_HOME"} = "/oracle/product/11.2.0";
$ENV{"PATH"} = "$ENV{'PATH'}:/oracle/product/11.2.0/bin";
... (1 Reply)
Discussion started by: msrahman
1 Replies
LEARN ABOUT FREEBSD
dir
DIR(5) BSD File Formats Manual DIR(5)NAME
dir, dirent -- directory file format
SYNOPSIS
#include <dirent.h>
DESCRIPTION
Directories provide a convenient hierarchical method of grouping files while obscuring the underlying details of the storage medium. A
directory file is differentiated from a plain file by a flag in its inode(5) entry. It consists of records (directory entries) each of which
contains information about a file and a pointer to the file itself. Directory entries may contain other directories as well as plain files;
such nested directories are referred to as subdirectories. A hierarchy of directories and files is formed in this manner and is called a
file system (or referred to as a file system tree).
Each directory file contains two special directory entries; one is a pointer to the directory itself called dot '.' and the other a pointer
to its parent directory called dot-dot '..'. Dot and dot-dot are valid pathnames, however, the system root directory '/', has no parent and
dot-dot points to itself like dot.
File system nodes are ordinary directory files on which has been grafted a file system object, such as a physical disk or a partitioned area
of such a disk. (See mount(2) and mount(8).)
The directory entry format is defined in the file <sys/dirent.h> (which should not be included directly by applications):
#ifndef _SYS_DIRENT_H_
#define _SYS_DIRENT_H_
#include <machine/ansi.h>
/*
* The dirent structure defines the format of directory entries returned by
* the getdirentries(2) system call.
*
* A directory entry has a struct dirent at the front of it, containing its
* inode number, the length of the entry, and the length of the name
* contained in the entry. These are followed by the name padded to a 4
* byte boundary with null bytes. All names are guaranteed null terminated.
* The maximum length of a name in a directory is MAXNAMLEN.
*/
struct dirent {
__uint32_t d_fileno; /* file number of entry */
__uint16_t d_reclen; /* length of this record */
__uint8_t d_type; /* file type, see below */
__uint8_t d_namlen; /* length of string in d_name */
#ifdef _POSIX_SOURCE
char d_name[255 + 1]; /* name must be no longer than this */
#else
#define MAXNAMLEN 255
char d_name[MAXNAMLEN + 1]; /* name must be no longer than this */
#endif
};
/*
* File types
*/
#define DT_UNKNOWN 0
#define DT_FIFO 1
#define DT_CHR 2
#define DT_DIR 4
#define DT_BLK 6
#define DT_REG 8
#define DT_LNK 10
#define DT_SOCK 12
#define DT_WHT 14
/*
* Convert between stat structure types and directory types.
*/
#define IFTODT(mode) (((mode) & 0170000) >> 12)
#define DTTOIF(dirtype) ((dirtype) << 12)
/*
* The _GENERIC_DIRSIZ macro gives the minimum record length which will hold
* the directory entry. This requires the amount of space in struct direct
* without the d_name field, plus enough space for the name with a terminating
* null byte (dp->d_namlen+1), rounded up to a 4 byte boundary.
*/
#define _GENERIC_DIRSIZ(dp) ((sizeof (struct dirent) - (MAXNAMLEN+1)) + (((dp)->d_namlen+1 + 3) &~ 3))
#ifdef _KERNEL
#define GENERIC_DIRSIZ(dp) _GENERIC_DIRSIZ(dp)
#endif
#endif /* !_SYS_DIRENT_H_ */
SEE ALSO fs(5), inode(5)HISTORY
A dir file format appeared in Version 7 AT&T UNIX.
BUGS
The usage of the member d_type of struct dirent is unportable as it is FreeBSD-specific. It also may fail on certain file systems, for exam-
ple the cd9660 file system.
BSD April 19, 1994 BSD