I am using gdb to examine a core file but the output contains only the method addresses in hex.
Is there anyway to translate these addresses to a human-readable form? :confused: (0 Replies)
Hi,
Files coming to mailbox are in readable format?
Is there any special command to read these files.
suppose i have sent a file like this
megh$mailx -s "mesg" xyz@server.domain<file1.dat
can xyz directly read the file from his mailbox? (1 Reply)
In Unix/Ksh, when I try to look inside a file it says that the file may be a binary file and if I want to see it anyway. When i say 'yes', it shows me the content filled with unreadable symbols (looks like binary). Is there a command that I can run from the Unix prompt to convert/translate that... (3 Replies)
$ quota
Disk quotas for user cqlouis (uid 1254):
Filesystem blocks quota limit grace files quota limit grace
/dev/sdb1 64 300000 320000 8 0 0
$
I want to make the output of command quota in human readable format? How to?
As we... (2 Replies)
i want to check the readability of a file inside the script.
when i use
if
then
echo the file "$sourcef" is not readable
else
echo something
fi
i am getting the error : f: unknown test operator
when i tried to check the availability with
if
i was... (3 Replies)
All,
I have a script where I get a filename as input and do some processing with the file that I got as input.
Requirement:
Now I have a requirement where I need to check the following:
If either of this goes wrong, the script should pop out a warning message.
I tried searching the... (6 Replies)
Hi, I'm writing an awk script to remove redundant XML data.
I plan on running the script with the following line:
cat xmlFile.xml | awk -f scriptFile
I want the user to be able to choose the filename that the slimmed down XML code is written to. All of the writing to the slimmed-file is... (2 Replies)
When I do the file I get ELF 32-bit MSB executable SPARC Version 1, dynamically linked, not stripped
I am almost 100% sure I was able to print a readable version of this file in the past but I cannot remember how. Is it possible to convert this file into something that can be read and or... (3 Replies)
Hello I have a file : file1.txt with the below contents :
237176 test1 test2 1442149024
237138 test3 test4 1442121300
237171 test5 test7 1442112823
237145 test9 test10 1442109600
In the above file fourth field represents the timestamp in Unix format.
I found a command which converts... (6 Replies)
Discussion started by: rahul2662
6 Replies
LEARN ABOUT SUSE
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 3.25 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)