LFS 201 - vmstat - Memory Monitoring and Usage
I came back after a period busy for work and later on after some weeks on vacatiion.
Just re-begun to study.
If delay is given in seconds, the report is repeated at that interval count times; if count is not given, vmstat will keep reporting statistics forever, until it is killed by a signal, such as Ctrl-C.
That's not true. I checked on both Debian and Centos: vmstat print just one line.