[mdlug] Remote shell scripts via ssh?

[Ingles, Raymond]

> From: Wojtak, Greg

> Actually, this works:
> 
> echo "command" | ssh user at machinea `'>>'`

For a single command, yes; not for a real script. :-/ Here's what I get:


Single command:
---------------

$ echo "ls /tmp"| ssh -t @remote.linux.box.org `'>>'`
bash: >>: command not found
Pseudo-terminal will not be allocated because stdin is not a terminal.
Warning: no access to tty (Bad file descriptor).
Thus no job control in this shell.
stty: standard input: Invalid argument
env.properties.18590
hsperfdata_pfhbzs0/
hsperfdata_root/
install.dir.1100/
install.dir.1446/
install.dir.1732/
install.dir.17439/
install.dir.17705/
install.dir.17994/
install.dir.18590/
install.dir.2084/
install.dir.22069/
install.dir.2349/
install.dir.25263/
install.dir.2659/
install.dir.2955/
install.dir.30272/
install.dir.30455/
install.dir.3611/
install.dir.4116/
install.dir.4302/
keyring-jnQjLV/
keyring-MeIU8L/
lost+found/
mapping-root=
persistent_state

An example script to execute:
-----------------------------

$ cat remtest.sh 
#!/bin/sh
ps -e -o pcpu= -o comm= | sort -r -n | head -n 10 > top10.tmp
TOP10=`cat top10.tmp`
FIRSTPLACE=`echo ${TOP10} | cut -d" " -f 1`
echo "Biggest CPU usage:"; echo ${FIRSTPLACE}; echo "Top 10:"
cat top10.tmp
echo "Finished."
rm top10.tmp

Output of example script run locally:
-------------------------------------

$ ./remtest.sh 
Biggest CPU usage:
4.5
Top 10:
 4.5 firefox-bin
 1.0 public.sh
 0.5 jpilot
 0.0 xpdf.bin
 0.0 watchdog/0
 0.0 usb-storage
 0.0 usb-storage
 0.0 udevd
 0.0 telnet
 0.0 syslogd
Finished.

Trying to run it remotely:
--------------------------

$ cat public.sh| ssh -t ray at remote.linux.box.org `'>>'`
bash: >>: command not found
Pseudo-terminal will not be allocated because stdin is not a terminal.
Warning: no access to tty (Bad file descriptor).
Thus no job control in this shell.
stty: standard input: Invalid argument
TOP10=7.0: Command not found.
TOP10: Undefined variable.
FIRSTPLACE=: Command not found.
Biggest CPU usage:
FIRSTPLACE: Undefined variable.

> On 2/26/07 2:28 PM, "Wojtak, Greg" 
> <GregWojtak at quickenloans.com> wrote:
> 
> > what about something stupid like cat local_script.sh | ssh
> > user at machine.a.org (cat '>>' /tmp/script_from_beyond.sh;
> > script_from_beyond.sh)

 Can't seem to get that working either. :-/

 Sincerely,

 Ray Ingles                                      (313) 227-2317

     If the Bush administration can't sort New Orleans out,
               what are their chances in Iraq?
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