Dpkg --status

Package: sysstat
Status: install ok installed
Priority: optional
Section: admin
Installed-Size: 1336
Maintainer: Robert Luberda <[email protected]>
Architecture: amd64
Version: 11.4.3-2
Depends: lsb-base (>= 3.0-6), ucf (>= 2.003), xz-utils, debconf (>= 0.5) | debconf-2.0, libc6 (>= 2.14), libsensors4 (>= 1:3.0.0)
Recommends: cron | cron-daemon
Suggests: isag
Conffiles:
 /etc/cron.d/sysstat 455c3c071b6daabb4e4490828975034c
 /etc/cron.daily/sysstat 19b1317e195208eed1a0bcd68be2e637
 /etc/init.d/sysstat 577050178b0105b10118acfe3335de3f
 /etc/sysstat/sysstat ca4bb64ec3044408fed750d0d3d7769a
 /etc/sysstat/sysstat.ioconf fa92b01baa2130e26822c30fb27ac56e
Description: system performance tools for Linux
 The sysstat package contains the following system performance tools:
  - sar: collects and reports system activity information;
  - iostat: reports CPU utilization and disk I/O statistics;
  - tapestat: reports statistics for tapes connected to the system;
  - mpstat: reports global and per-processor statistics;
  - pidstat: reports statistics for Linux tasks (processes);
  - sadf: displays data collected by sar in various formats;
  - cifsiostat: reports I/O statistics for CIFS filesystems.
 .
 The statistics reported by sar deal with I/O transfer rates,
 paging activity, process-related activities, interrupts,
 network activity, memory and swap space utilization, CPU
 utilization, kernel activities and TTY statistics, among
 others. Both UP and SMP machines are fully supported.
Homepage: http://pagesperso-orange.fr/sebastien.godard/

See also

• dpkg, dpkg-query, update-alternatives, ar, debsums, dpkg -V, dpkg -S, dpkg -L, dpkg --configure -a, wajig, dpkg -i -E , dpkg --help, dpkg-source-gitarchive
• APT: wajig, apt-cache, add-apt-repository PPA, apt [ install | remove |purge | show | list | changelog | update | upgrade], do-release-upgrade, apt-mark, apt full-upgrade, sources.list, APT Automatic updates, unattended-upgrade, apt-transport-https, apt-get update, /etc/apt/, /etc/apt/apt.conf.d/50unattended-upgrades, /etc/apt/apt.conf.d/, /etc/apt/apt.conf.d/20auto-upgrades, apt-file, apt-utils

https://linux.die.net/man/8/update-alternatives