-bash: !/bin/bash: event not found when executing thunderbolt network configuration

[martinspaniol]

When executing this part of the TB network configuration:

https://github.com/taslabs-net/PVE9_TB4/blob/171f17a12389e3d815d9b951eceef5a7da59df47/02B-TB4-Network-Configuration.md?plain=1#L107C1-L107C12

I receive the error -bash: !/bin/bash: event not found. This is my code:

martin@Laptop:~$ for node in 192.168.3.11 192.168.3.12 192.168.3.13; do
  ssh root@$node "cat > /usr/local/bin/pve-en05.sh << 'EOF'
#!/bin/bash
LOGFILE=\"/tmp/udev-debug.log\"
echo \"\$(date): en05 bringup triggered\" >> \"\$LOGFILE\"
for i in {1..5}; do
    {
        ip link set en05 up mtu 65520
        echo \"\$(date): en05 up successful on attempt \$i\" >> \"\$LOGFILE\"
        break
    } || {
        echo \"\$(date): Attempt \$i failed, retrying in 3 seconds...\" >> \"\$LOGFILE\"
        sleep 3
    }
done
EOF"
  ssh root@$node "chmod +x /usr/local/bin/pve-en05.sh"
done
-bash: !/bin/bash: event not found

The file /usr/local/bin/pve-en05.sh will be created but without the Shebang at the beginning.

[martinspaniol]

Apparently using single quotes instead of double quotes seem to fix the issue:

for node in 192.168.3.11 192.168.3.12 192.168.3.13; do
  ssh root@$node 'cat > /usr/local/bin/pve-en06.sh << "EOF"
#!/bin/bash
LOGFILE="/tmp/udev-debug.log"
echo "$(date): en06 bringup triggered" >> "$LOGFILE"
for i in {1..5}; do
    {
        ip link set en06 up mtu 65520
        echo "$(date): en06 up successful on attempt $i" >> "$LOGFILE"
        break
    } || {
        echo "$(date): Attempt $i failed, retrying in 3 seconds..." >> "$LOGFILE"
        sleep 3
    }
done
EOF'
  ssh root@$node "chmod +x /usr/local/bin/pve-en06.sh"
done