Hi,
I am trying to write to a dat tape, using HP UX 10.20
tar: cannot open /dev/dat
not mounted ?
ioscan ? if so, then where ?
suggestions ?
thanks
simon (6 Replies)
I made tar file having file names more character( up to 50).
When i extract file in Linux it extracts fine.. but in HPUX all file name which are more than 24 are trimed to 24 characters.
i m using "tar -xvf xx.tar"
i read some O and N option for New posix and Old but didnt got. :confused:
... (2 Replies)
frnds,
I compressed some files on the basic of $date var.
$date contains todays date in some specific format..
also my files are in different directories...
now, I m doing.
tar -cvf archive.tar /root/abc/*$date* /root/wxv/123/*$date* /var/*$date*
this creates archive.tar for me.. ... (4 Replies)
Hi,
I make a tar archive:
tar -czvf /path_to/cucu.tar.gz /path/dir_to_archive/
In the archive the /path/dir_to_archive/ is maintained for every file.
I need that the archive to be made without the /path/dir_to_archive/ to contain only the files in /path/dir_to_archive/.
Thanks,... (4 Replies)
Hi all,
I have couple of files I need to tar and put in some client server could some body help me the basic understanding of tarring files please It would be a great help.
regards
Anwar (4 Replies)
Hello all,
I was attempting to create a tar file via this command:
tar cpf 20100529.tar | find . -name *20100529*
Attempt to create archive of no files. Nothing dumped.
which produced a list of several files in the .tar file but in the end the file was:
-rw-r--r-- 1 xxx_xxxx users ... (9 Replies)
Hi,
I want to tar files and zip them in order to clean up space in directory. I have files like /path/file1 /path file2.
What I am trying to do is:
Option 1:
tar -cvf /path/file1 /path file2 | gzip > test.tar.gz
I got the file created. But while trying to extract the Tar and zipped file, I... (1 Reply)
I have written a below script to untar the tar files from /tmp/tarfiles/ directory.
# cat /tmp/tarfiles/script.sh
#!/bin/sh
cd /tmp/tarfiles/
TFL="tar_files_list.txt"
TCF="tar_completed_list.txt"
ls -l *.tar | awk '{print $9}' > $TFL
for i in `cat $TFL`
do
if
then
for j in... (2 Replies)
Hi all,
I have a folder that I am trying to tar ut is leading to unexpected results.
Ive written a script that find a certain number of files(logs) with specific names older than 14 days, moves them to a folder and compresses that folder.
_ARCHIVE=/opt/test/archived_logs... (2 Replies)
Discussion started by: Junaid Subhani
2 Replies
LEARN ABOUT LINUX
tee
TEE(2) Linux Programmer's Manual TEE(2)NAME
tee - duplicating pipe content
SYNOPSIS
#define _GNU_SOURCE
#include <fcntl.h>
ssize_t tee(int fd_in, int fd_out, size_t len, unsigned int flags);
DESCRIPTION
tee() duplicates up to len bytes of data from the pipe referred to by the file descriptor fd_in to the pipe referred to by the file
descriptor fd_out. It does not consume the data that is duplicated from fd_in; therefore, that data can be copied by a subsequent
splice(2).
flags is a series of modifier flags, which share the name space with splice(2) and vmsplice(2):
SPLICE_F_MOVE Currently has no effect for tee(); see splice(2).
SPLICE_F_NONBLOCK Do not block on I/O; see splice(2) for further details.
SPLICE_F_MORE Currently has no effect for tee(), but may be implemented in the future; see splice(2).
SPLICE_F_GIFT Unused for tee(); see vmsplice(2).
RETURN VALUE
Upon successful completion, tee() returns the number of bytes that were duplicated between the input and output. A return value of 0 means
that there was no data to transfer, and it would not make sense to block, because there are no writers connected to the write end of the
pipe referred to by fd_in.
On error, tee() returns -1 and errno is set to indicate the error.
ERRORS
EINVAL fd_in or fd_out does not refer to a pipe; or fd_in and fd_out refer to the same pipe.
ENOMEM Out of memory.
VERSIONS
The tee() system call first appeared in Linux 2.6.17.
CONFORMING TO
This system call is Linux-specific.
NOTES
Conceptually, tee() copies the data between the two pipes. In reality no real data copying takes place though: under the covers, tee()
assigns data in the output by merely grabbing a reference to the input.
EXAMPLE
The following example implements a basic tee(1) program using the tee() system call.
#define _GNU_SOURCE
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <limits.h>
int
main(int argc, char *argv[])
{
int fd;
int len, slen;
if (argc != 2) {
fprintf(stderr, "Usage: %s <file>
", argv[0]);
exit(EXIT_FAILURE);
}
fd = open(argv[1], O_WRONLY | O_CREAT | O_TRUNC, 0644);
if (fd == -1) {
perror("open");
exit(EXIT_FAILURE);
}
do {
/*
* tee stdin to stdout.
*/
len = tee(STDIN_FILENO, STDOUT_FILENO,
INT_MAX, SPLICE_F_NONBLOCK);
if (len < 0) {
if (errno == EAGAIN)
continue;
perror("tee");
exit(EXIT_FAILURE);
} else
if (len == 0)
break;
/*
* Consume stdin by splicing it to a file.
*/
while (len > 0) {
slen = splice(STDIN_FILENO, NULL, fd, NULL,
len, SPLICE_F_MOVE);
if (slen < 0) {
perror("splice");
break;
}
len -= slen;
}
} while (1);
close(fd);
exit(EXIT_SUCCESS);
}
SEE ALSO splice(2), vmsplice(2), feature_test_macros(7)COLOPHON
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 2009-09-15 TEE(2)