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how to use apt-get command in ubuntu

debianubuntuapt-get’s commands are very easy and intuitive. These commands will be very useful in managing software in Debian and Ubuntu (based) systems.

Its commands follow this structure:

# apt-get [options] command

# apt-get [options] install package [package …]

The command line may be a variation of the following basic types:

# apt-get update (Updates apt-get’s local database with server’s pkglist’s files.)

# apt-get check (verifies system’s integrity using apt)

# apt-get install some-package (installs some new package, automatically resolving and downloading dependent packages)

# apt-get upgrade (checks for outdated packages in the system and automatically upgrades them)

# apt-get dist-upgrade (same as apt-get upgrade, but installs all base packages and tries to upgrade everything, installing new packages if needed)

# apt-get remove some-package (removes the some-package package and all other packages that depends on it)

# apt-get clean (removes the downloaded packages from the cache directory (/var/cache/apt/archives/), freeing some disk space at your system.)

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