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Shell Programming and Scripting

what's wrong with my EOF

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# 1  
Old 09-12-2012
what's wrong with my EOF
Code:
[root@localhost tmp]# cat ./xx.sh 
#!/bin/sh
cat <<EOF >> /tmp/111
#!/bin/sh
for eth_device in \`ifconfig |awk '/eth/{print $1}'\`
do                                  
dhclient \$eth_device                  
done                                      
EOF 
[root@localhost tmp]# ./xx.sh 
./xx.sh: line 8: warning: here-document at line 2 delimited by end-of-file (wanted `EOF')

# 2  
Old 09-12-2012
(Removed my nonsense...)

Sorry was not awake yet...

Try with:
Code:
for eth_device in $(ifconfig |awk '/eth/{print $1}')

Then check if it is cat you need... cant test for you sorry...
Last edited by vbe; 09-12-2012 at 06:27 AM..
# 3  
Old 09-12-2012
If you don't want anything in the here-document expanded, quote the delimiter:
Code:
cat <<'EOF'    # even quoting a single character of EOF is sufficient

Note that quotes are not special within a here-doc, so $1 is expanded by the shell while reading the here-doc, so awk will not see what you intend.

Regards,
Alister
# 4  
Old 09-12-2012
Your EOF label has a trailing blank, so it's not recognized. Remove that, and it works. You may need to escape the $ sign in awk ... $1.
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