Top 5 Varnish commands

Here's a brief list of my top 5 varnish commands

varnishstat
This is what I use to get a birds-eye view of what we have cooking. Provides all the info you need to spot cache misses and errors.
Usage: varnishstat for continuous display or varnishstat -i 1 for a quick one-off. More on this command: http://www.varnish-cache.org/docs/2.1/reference/varnishstat.html

varnishhist
Provides a histogram view of cache hits/misses
Usage: varnishhist More on this command: http://www.varnish-cache.org/docs/2.1/reference/varnishhist.html

varnishlog
Provides detailed information on requests. I use it to debug cache operations by for example issuing the command varnishlog -c -o ReqStart [insert ip here] which allows me to see what happens when I visit a cache object in my browser.
Usage: varnishlog -c -o ReqStart 192.168.0.1 More on this command: http://www.varnish-cache.org/docs/2.1/reference/varnishlog.html

varnishtop
I use this mainly to get lists of things. Like this one that gives me a list of the top urls hitting the backend (pass).
Usage: varnishtop -b -i TxURL More on this command: http://www.varnish-cache.org/docs/2.1/reference/varnishtop.html

varnishadm
Command-line varnish administration. I mainly use this to reload vcl and purge urls.
Usage: varnishadm -t host:port command
Reloading a vcl from the command line can be done like this:
Load (your changed vcl): varnishadm -t localhost:6082 vcl.load load01 /etc/varnish/default.vcl
Use (apply) the vcl: varnishadm -t localhost:6082 vcl.use load01
More on this command: http://www.varnish-cache.org/docs/2.1/reference/varnishadm.html