Bash-loops: Difference between revisions
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(Created page with "=== Interesting bash loop constructs I have found === <pre> cat interesting_loop.sh #!/bin/bash _admin_ip="202.54.1.33|MUM_VPN_GATEWAY 23.1.2.3|DEL_VPN_GATEWAY 13.1.2.3|SG_V...") |
(No difference)
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Latest revision as of 20:00, 20 September 2022
Interesting bash loop constructs I have found
cat interesting_loop.sh
#!/bin/bash
_admin_ip="202.54.1.33|MUM_VPN_GATEWAY 23.1.2.3|DEL_VPN_GATEWAY 13.1.2.3|SG_VPN_GATEWAY"
for e in $_admin_ip
do
echo allow from "${e%%|*}" to any port 22 proto tcp comment "Open SSH port for ${e##*|}"
done
chubbard@chubbard-laptop:~$ ./interesting_loop.sh
allow from 202.54.1.33 to any port 22 proto tcp comment Open SSH port for MUM_VPN_GATEWAY
allow from 23.1.2.3 to any port 22 proto tcp comment Open SSH port for DEL_VPN_GATEWAY
allow from 13.1.2.3 to any port 22 proto tcp comment Open SSH port for SG_VPN_GATEWAY
chubbard@chubbard-laptop:~$