References to various tool/language common actions, tips, or anything fairly useful.
Extract pages N from pdf and save to new pdf. <range> is a comma-seperated list of either single pages or page ranges.
qpdf --empty --pages report.pdf <range> -- print.pdf
Bind remote-localhost service on specific port to local-localhost specific port
ssh -L [localport]:[localhost]:[remoteport] remoteuser@remoteaddress