jcli job search input.
jcli job build "folderName jobName" -b
jcli job log "zjproject zjproject-inputstep55" -w. This command will always output the log of the last build.
jclia proxy setting. It's also very simple to support a proxy setting. You just need to execute:
jcli config edit. Then find the item which you want to add a proxy. Like the below demo: