10 More Discussions You Might Find Interesting
1. UNIX for Beginners Questions & Answers
Hello experts,
OS : CentOS
Could you please help me with the following scenario :
I wish to use scp command in order to copy a file (say : f1.txt) from server 2 to server 1.
Both servers have a common user (say : user1) configured. Also, the file is owned by the same user on both... (2 Replies)
Discussion started by: H squared
2 Replies
2. Shell Programming and Scripting
I am using the below command to scp the file to destination server ($server).
The ssh keys have been created between the source and destination servers. Still I am getting password authentication after executing the below scp command:
scp $Local_dir/$file_pattern* $username@$server:/$ftp_dir/... (1 Reply)
Discussion started by: Ganesh L
1 Replies
3. Shell Programming and Scripting
Hello Folks,
I have two linux server accounts server1 and server2
From the terminal if I say this command,
scp /source/folder/from/server1/unix.txt user@server2.com:/destination/folder/
Then it prompts for the password
user@server2.com's password:
I enter my password and then it... (1 Reply)
Discussion started by: jacobs.smith
1 Replies
4. Shell Programming and Scripting
Hi,
I was provided with sftp servername, user and password and the requirement is to connect to sftp server using credentials provided and drop the file.
Manually i am able to connect with commands like
sftp user@servername
and after clicking enter, i was asked for a password and entering... (4 Replies)
Discussion started by: forums123456
4 Replies
5. Linux
Dear all,
I have two servers A and B. I want to do scp with out password between these two servers.
I created ssh-keygen and copied the id-rsa.pub file to each of them in authorized_keys.
But I could login only from B to A with out password. From A to B it is asking for a password.
... (5 Replies)
Discussion started by: jegaraman
5 Replies
6. UNIX for Advanced & Expert Users
I am trying to copy a file from remote machine using scp. I followed the steps to configure public/private key usage. But still prompting for password when I do ssh.
I did the following steps to configure scp without asking password
Step 1 : local host > ssh-keygen -t rsa and when prompted... (9 Replies)
Discussion started by: satish@123
9 Replies
7. Shell Programming and Scripting
Hi Everyone,
I'm trying to run scp as a one-line command, as of right now, it prompts me for the user's password to the remote machine. Does anyone know if there is an option to pass the password parameter into the scp command on the same line so it doesn't prompt me? Thanks! (1 Reply)
Discussion started by: twhitmarsh
1 Replies
8. Red Hat
Hi,
I want to use sftp/scp without password.How can I do that ??
I plan to use script with scp/sftp and execute by cronjob ,any sample or example?? How can I test the scp/sftp working or not in the same user account , in the same red linux server?? any suggestion ??? (5 Replies)
Discussion started by: chuikingman
5 Replies
9. UNIX for Advanced & Expert Users
Hi,
when I use scp test.jsp user@remote:/tmp/
I'm prompted user@remote's password:
How can I avoid it ?
Thank you. (8 Replies)
Discussion started by: big123456
8 Replies
10. Shell Programming and Scripting
I like to copy a file from one server server1 from path path1 to another server server2 to path path2.
User logging in both the servers are same say user1
I tried to use ssh to generate public/private key pairs and then copy without prompting for password.
These are the steps i followed
... (5 Replies)
Discussion started by: jwala
5 Replies
system(3C) system(3C)
NAME
system - issue a shell command
SYNOPSIS
#include <stdlib.h>
int system(const char *string);
The system() function causes string to be given to the shell as input, as if string had been typed as a command at a terminal. The invoker
waits until the shell has completed, then returns the exit status of the shell in the format specified by waitpid(3C).
If string is a null pointer, system() checks if the shell exists and is executable. If the shell is available, system() returns a non-zero
value; otherwise, it returns 0. The standard to which the caller conforms determines which shell is used. See standards(5).
The system() function executes vfork(2) to create a child process that in turn invokes one of the exec family of functions (see exec(2)) on
the shell to execute string. If vfork() or the exec function fails, system() returns -1 and sets errno to indicate the error.
The system() function fails if:
EAGAIN The system-imposed limit on the total number of processes under execution by a single user would be exceeded.
EINTR The system() function was interrupted by a signal.
ENOMEM The new process requires more memory than is available.
USAGE
The system() function manipulates the signal handlers for SIGINT, SIGQUIT, and SIGCHLD. It is therefore not safe to call system() in a mul-
tithreaded process, since some other thread that manipulates these signal handlers and a thread that concurrently calls system() can inter-
fere with each other in a destructive manner. If, however, no such other thread is active, system() can safely be called concurrently from
multiple threads. See popen(3C) for an alternative to system() that is thread-safe.
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
|MT-Level |Unsafe |
+-----------------------------+-----------------------------+
ksh(1), sh(1), exec(2), vfork(2), popen(3C), waitpid(3C), attributes(5), standards(5)
18 Dec 2003 system(3C)
