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ssh uses here-document problem

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# 1  
Old 07-05-2012
ssh uses here-document problem
I try to ssh uses bash script in here-document like this.

Code:
ssh root@$SERVER <<EOF
if [ `service httpd status | grep stop` ]; then
    service httpd start
fi
exit
EOF

But got an error below.

Quote:
Pseudo-terminal will not be allocated because stdin is not a terminal.
-bash: line 1: [: is: binary operator expected
TERM environment variable not set
maybe the if command causes the problem. Thanks for help.
# 2  
Old 07-05-2012
That's not correct if-syntax outside a here-document, let alone inside one.

The backticks get substituted before the here-document even gets sent to the remote side, too -- but you don't even need them. You don't even need a here-document...

Code:
ssh username@host "service httpd status | grep stop >/dev/null && service httpd start"

# 3  
Old 07-05-2012
It's really helpful. I need to get used to this. Thanks a lot.
Last edited by muffle; 07-10-2012 at 01:34 AM..
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