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pacman

  • Pacman settings: /etc/pacman.conf

  • Pacman logs: /var/log/pacman.log

  • Mirrors

  • Mirrorlist stored at /etc/pacman.d/mirrorlist
  • Official list is available from the package pacman-mirrorlist
  • Last Modified packages
  • grep -iE 'installed|upgraded|removed' /var/log/pacman.log

Query

  • Fetches from pacman's local database
  • A package on arch is a tarball
# Query all packages
pacman --query
pacman -Q

# Explicitly installed
pacman -Qe

# Installed as dependency
pacman -Qd
pacman -Qdt  # + unrequired
pacman -Qdtt # + optional deps

# Foreign packages (installed manually, AUR packages or from libraries removed from pacman.conf)
pacman -Qm

# Info about a package
pacman -Qi "package"
pacman -Qip "package.pkg.tar.xz" # query a file directly

# List package files
pacman -Ql "package"
pacman -Qlp "package.pkg.tar.xz" # query a file directly

# List outdated packages
pacman -Qu

# Changelog
pacman -Qc "package"

# Query the package that owns a file
pacman -Qo "file"

Sync

  • Fetches from pacman's remote database (can be cached)
# Install package
pacman --sync "package"
pacman -S "package"
pacman -S --overwrite \* foo # overwrite conflicting files

# Refresh package database from server
pacman -Sy
pacman -Syy # force download (even if up to date)

# Upgrade installed packages
pacman -Su
pacman -Syu # update & upgrade

# Search package on remote repo
pacman -Ss "regex-package"

# remove cache
pacman -Sc # doesn't keep old versions
pacman -Scc # clear also packages that are installed

# List packages in a repo
pacman -Sl "core"

Remove

# Remove package
pacman --remove "package"
pacman -R "package"

# Remove configuration files
pacman -Rn "package"

# Remove unnecessary dependencies
pacman -Rs "package"

# Cascade (remove all packages that depend on them)
pacman -Rc "package"

Upgrade

# Downgrade a kernel
pacman --upgrade "linux-4.15.8-1-x86_64.pkg.tar.xz"
pacman -U "linux-4.15.8-1-x86_64.pkg.tar.xz"
pacman -U --overwrite \* foo.pkg.tar.zst  # overwrite conflicting files

Files

  • Fetches from pacman's remote database (can be cached)
# refresh package databases from the server
pacman -Fy

# search for a package by file
pacman --files "file"
pacman -F "file"

# list all files by a package
pacman -Fl "package"

Database

# test local database
pacman -Dk

# mark a package as explicit installed
pacman -D --asexplicit "package"

# mark a package as dependency
pacman -D --asdeps "package"

pacman.conf

  • Skip package from being upgraded
  • Add the packages to the at /etc/pacman.conf
IgnorePkg=linux