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I commonly like to use a slight variant on the standard for loop. I often use this to run a command on a series of remote hosts. I take advantage of Bash's brace expansion to create for loops that allow me to create non-numerical for loops. Example: I want to run the uptime command on frontend hosts 1-5 and backend hosts 1-3: % for host in {frontend{1..5},backend{1..3}}.mycompany.com do ssh ...
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