i have a paramter data_date in which i am passing a string value.i want to find out another paramter file_date from this.the logic is given below
if day of data_date = sunday or monday
then
file_date=data_date-1
else
file_date=data_date-2
i am passing data_date as 20061027.
how can i... (3 Replies)
Hi,
While I am trying SFTP my machine to another unix machine ,
it was working fine till 10 min back.
But now i am getting the below error
"Request for subsystem 'sftp' failed on channel 0"
Could you please someone help me to solve or analyise the root cause...
Cheers:b:,
Mahiban (0 Replies)
Executed the following if conditions .. and got different results .
only (( )) gave correct o/p with all scenarios .
Can anybody please let me know what is the difference between and ] and ((condition)) when used with if condition.
And why each condition gave different result.
1.... (2 Replies)
Hi,
I have situation where i need to automate transferring 10000+ files using sftp.
while read line
do
if ; then
echo "-mput /home/student/Desktop/folder/$line/* /cygdrive/e/folder/$line/">>sftpCommand.txt
fi
done< files.txt
sftp -b sftpCommand.txt stu@192.168.2.1
The above... (1 Reply)
hi,
I have some problems in my simple script about the redirect echo stdout command inside a condition. Why is the echo command inside the elif still execute in the else command
Here are my simple script
After check on the two diff output the echo stdout redirect is present in two diff... (3 Replies)
Hello,
I have a weird issue, I have RHEL 5.7 running with openssh5.2 where sftpgroup OS group is chroot. I see the difference difference in timestamp on files, when I login via ssh and SFTP, I see four hour difference, is something missing in my configuration.
#pwd... (8 Replies)
I had the below sftp script working perfectly but the problem is I am not able to send the echo statements .
#!/bin/sh
echo "Starting to sftp..."
sftp admin@myip << END_SCRIPT
cd /remotepath/
lcd /localpath/
mget myfiles*.csv
bye
END_SCRIPT
echo "Sftp successfully."
echo
echo... (11 Replies)
HI
My doubt may be basic one but I need to get it clarified..
When i use "if" condition that checks for many AND, OR logical conditions
like
if ]; then
return 0
fi
Even the if condition fails it returns as zero.. Any clue..
But if i add else condition like
if ]; ... (2 Replies)
HI,
I connected to a remote FTP server using sftp command.
Need to check if any files are present inside a folder in server directory and then remove if present.
The code should look like this
How can this condition be written.
Thanks in advance, (2 Replies)
hi guys,
i need a script to sftp the file from windows to unix server ....(before that i have to check whether the file exists in the windows server or not
and again i have to reverse sftp the files from unix to windows server.....
regards,
Vasa Saikumar. (13 Replies)
Discussion started by: hemanthsaikumar
13 Replies
LEARN ABOUT CENTOS
libssh2_sftp_write
libssh2_sftp_write(3) libssh2 manual libssh2_sftp_write(3)NAME
libssh2_sftp_write - write SFTP data
SYNOPSIS
#include <libssh2.h>
#include <libssh2_sftp.h>
ssize_t libssh2_sftp_write(LIBSSH2_SFTP_HANDLE *handle,
const char *buffer,
size_t count);
DESCRIPTION libssh2_sftp_write(3) writes a block of data to the SFTP server. This method is modeled after the POSIX write() function and uses the same
calling semantics.
handle - SFTP file handle as returned by libssh2_sftp_open_ex(3).
buffer - points to the data to send off.
count - Number of bytes from 'buffer' to write. Note that it may not be possible to write all bytes as requested.
libssh2_sftp_handle(3) will use as much as possible of the buffer and put it into a single SFTP protocol packet. This means that to get
maximum performance when sending larger files, you should try to always pass in at least 32K of data to this function.
WRITE AHEAD
Starting in libssh2 version 1.2.8, the default behavior of libssh2 is to create several smaller outgoing packets for all data you pass to
this function and it will return a positive number as soon as the first packet is acknowledged from the server.
This has the effect that sometimes more data has been sent off but isn't acked yet when this function returns, and when this function is
subsequently called again to write more data, libssh2 will immediately figure out that the data is already received remotely.
In most normal situation this should not cause any problems, but it should be noted that if you've once called libssh2_sftp_write() with
data and it returns short, you MUST still assume that the rest of the data might've been cached so you need to make sure you don't alter
that data and think that the version you have in your next function invoke will be detected or used.
The reason for this funny behavior is that SFTP can only send 32K data in each packet and it gets all packets acked individually. This
means we cannot use a simple serial approach if we want to reach high performance even on high latency connections. And we want that.
RETURN VALUE
Actual number of bytes written or negative on failure.
If used in non-blocking mode, it returns LIBSSH2_ERROR_EAGAIN when it would otherwise block. While LIBSSH2_ERROR_EAGAIN is a negative num-
ber, it isn't really a failure per se.
If this function returns 0 (zero) it should not be considered an error, but simply that there was no error but yet no payload data got sent
to the other end.
ERRORS
LIBSSH2_ERROR_ALLOC - An internal memory allocation call failed.
LIBSSH2_ERROR_SOCKET_SEND - Unable to send data on socket.
LIBSSH2_ERROR_SOCKET_TIMEOUT -
LIBSSH2_ERROR_SFTP_PROTOCOL - An invalid SFTP protocol response was received on the socket, or an SFTP operation caused an errorcode to be
returned by the server.
SEE ALSO libssh2_sftp_open_ex(3)libssh2 0.15 1 Jun 2007 libssh2_sftp_write(3)