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Shell Programming and Scripting
Weird loop break,- please Help
Post 302333560 by sx3v1l_1n51de on Monday 13th of July 2009 11:24:27 AM
07-13-2009
Oh boy... am i stupid.... i swear i did searched but i could not find anything like it, right after posting it showed me a list of related threads and there is was exactly what i was looking for:
https://www.unix.com/shell-programmin...hile-loop.html
Apparently this is caused by the ssh reading my file and not leaving anything for the while loop... 
Anyway, thanks for you time guys 
https://www.unix.com/shell-programmin...hile-loop.html
Quote:
hey, guys, thanks for all the input!
I got another easier solution, adding -n after ssh will do the trick,
#!/bin/bash
while read dir file
do
ssh -n test@192.1.1.1 "ls -tl /$dir/$file"
done < /tmp/dirandfile
I got another easier solution, adding -n after ssh will do the trick,
#!/bin/bash
while read dir file
do
ssh -n test@192.1.1.1 "ls -tl /$dir/$file"
done < /tmp/dirandfile
Quote:
-n Redirects stdin from /dev/null (actually, prevents reading from stdin). This must be
used when ssh is run in the background. A common trick is to use this to run X11 pro-
grams on a remote machine. For example, ssh -n shadows.cs.hut.fi emacs & will start
an emacs on shadows.cs.hut.fi, and the X11 connection will be automatically forwarded
over an encrypted channel. The ssh program will be put in the background. (This does
not work if ssh needs to ask for a password or passphrase; see also the -f option.)
used when ssh is run in the background. A common trick is to use this to run X11 pro-
grams on a remote machine. For example, ssh -n shadows.cs.hut.fi emacs & will start
an emacs on shadows.cs.hut.fi, and the X11 connection will be automatically forwarded
over an encrypted channel. The ssh program will be put in the background. (This does
not work if ssh needs to ask for a password or passphrase; see also the -f option.)
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LEARN ABOUT LINUX
ssh-keysign
SSH-KEYSIGN(8) BSD System Manager's Manual SSH-KEYSIGN(8) NAME
ssh-keysign -- ssh helper program for host-based authentication SYNOPSIS
ssh-keysign DESCRIPTION
ssh-keysign is used by ssh(1) to access the local host keys and generate the digital signature required during host-based authentication with SSH protocol version 2. ssh-keysign is disabled by default and can only be enabled in the global client configuration file /etc/ssh/ssh_config by setting EnableSSHKeysign to ``yes''. ssh-keysign is not intended to be invoked by the user, but from ssh(1). See ssh(1) and sshd(8) for more information about host-based authen- tication. FILES
/etc/ssh/ssh_config Controls whether ssh-keysign is enabled. /etc/ssh/ssh_host_dsa_key /etc/ssh/ssh_host_ecdsa_key /etc/ssh/ssh_host_rsa_key These files contain the private parts of the host keys used to generate the digital signature. They should be owned by root, read- able only by root, and not accessible to others. Since they are readable only by root, ssh-keysign must be set-uid root if host- based authentication is used. /etc/ssh/ssh_host_dsa_key-cert.pub /etc/ssh/ssh_host_ecdsa_key-cert.pub /etc/ssh/ssh_host_rsa_key-cert.pub If these files exist they are assumed to contain public certificate information corresponding with the private keys above. SEE ALSO
ssh(1), ssh-keygen(1), ssh_config(5), sshd(8) HISTORY
ssh-keysign first appeared in OpenBSD 3.2. AUTHORS
Markus Friedl <markus@openbsd.org> BSD
August 31, 2010 BSD