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Top Forums UNIX for Dummies Questions & Answers Odd quirk with xargs and telnet Post 302458378 by Corona688 on Thursday 30th of September 2010 02:33:59 PM
Old 09-30-2010
It's because, when run with xargs, the commands have no standard input connected. Usually it'd wait for input, either from your end or the other end, but now it connects, tries to read from the keyboard, gets EOF, and quits instantly instead.

You can get around this by giving xargs a file listing arguments instead of reading them from stdin, i.e. list-servers > filename ; xargs -a filename command but it still requires stdin to be something terminal-like, meaning, it'd break down again if you tried to run this from a cron job instead of a terminal. 'telnet' may not be the best command for this, you might want to investigate netcat(nc)
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XINE-REMOTE(1)						      General Commands Manual						    XINE-REMOTE(1)

NAME
xine-remote - a small tool to connect xine remote control server. SYNOPSIS
xine-remote [options] DESCRIPTION
This manual page documents briefly the xine-remote tool. xine-remote can replace a raw telnet connection to a xine remote control server. It use the readline facilities (completion, vi/emacs shortcuts, command history, etc...). By default, it try to connect the localhost, using the default port (see xine(1)). OPTIONS
The program follow the usual GNU command line syntax, with long ioptions starting with two dashes (`-'). A summary of options are included below. -H, --host <hostname> Try to connect <hostname>. -P, --port <port> Try to connect the host using <port>. -c, --command <command> Send <command> to server then quit. The command should be single quoted if it contain spaces or special characters. -n, --noconnect Do not initiate the connection on startup. -v, --version Display version. -h, --help Display options summary. COMMANDS
Few commands are available, which are used to open or close a connection: ? Display available commands (the xine-remote ones + server ones when connection is established). help <command> Display the purpose of <command>, if that is omitted, display available commands. syntax <command> Display the usage of <command>. version Display version. open <server[:port]> Open connection to server. A port can be optionally specified, using colon (:) separator. close Close connection. quit Leaving xine-remote. SEE ALSO
xine(1). AUTHOR
This manual page was written by Daniel Caujolle-Bert <f1rmb@users.sourceforge.net> for the xine project. The xine project 2002-04-16 XINE-REMOTE(1)
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