Section 5 — File formats and configuration
281 pages.
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acct (5)process accounting fileadjtime_config (5)information about hardware clock setting and drift factorapt_auth.conf (5)Login configuration file for APT sources and proxiesapt_preferences (5)Preference control file for APTapt.conf (5)Configuration file for APTat.allow (5)determine who can submit jobs via at or batchat.deny (5)determine who can submit jobs via at or batch
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filesystems (5)Linux filesystem types: ext, ext2, ext3, ext4, hpfs, iso9660, JFS, minix, msdos, ncpfs nfs, ntfs, proc, Reiserfs, smb, sysv, umsdos, vfat, XFS, xiafsfips_config (5ssl)OpenSSL FIPS configurationfs (5)Linux filesystem types: ext, ext2, ext3, ext4, hpfs, iso9660, JFS, minix, msdos, ncpfs nfs, ntfs, proc, Reiserfs, smb, sysv, umsdos, vfat, XFS, xiafsfstab (5)static information about the filesystems
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gai.conf (5)getaddrinfo(3) configuration filegitattributes (5)Defining attributes per pathgitformat-bundle (5)The bundle file formatgitformat-chunk (5)Chunk-based file formatsgitformat-commit-graph (5)Git commit-graph formatgitformat-index (5)Git index formatgitformat-pack (5)Git pack formatgitformat-signature (5)Git cryptographic signature formatsgithooks (5)Hooks used by Gitgitignore (5)Specifies intentionally untracked files to ignoregitmailmap (5)Map author/committer names and/or E-Mail addressesgitmodules (5)Defining submodule propertiesgitprotocol-capabilities (5)Protocol v0 and v1 capabilitiesgitprotocol-common (5)Things common to various protocolsgitprotocol-http (5)Git HTTP-based protocolsgitprotocol-pack (5)How packs are transferred over-the-wiregitprotocol-v2 (5)Git Wire Protocol, Version 2gitrepository-layout (5)Git Repository Layoutgitweb.conf (5)Gitweb (Git web interface) configuration filegroup (5)user group filegshadow (5)shadowed group file
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machine-id (5)Local machine ID configuration filemachine-info (5)Local machine information filemanpath (5)format of the /etc/manpath.config filemodprobe.conf (5)Configuration directory for modprobemodprobe.d (5)Configuration directory for modprobemodules-load.d (5)Configure kernel modules to load at bootmodules.dep (5)Module dependency informationmodules.dep.bin (5)Module dependency informationmotd (5)message of the day
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nanorc (5)GNU nano's configuration filenetworkd.conf (5)Global Network configuration filesnetworkd.conf.d (5)Global Network configuration filesnetworks (5)network name informationnologin (5)prevent unprivileged users from logging into the systemnss (5)Name Service Switch configuration filensswitch.conf (5)Name Service Switch configuration file2 opts
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org.freedesktop.hostname1 (5)The D-Bus interface of systemd-hostnamedorg.freedesktop.locale1 (5)The D-Bus interface of systemd-localedorg.freedesktop.LogControl1 (5)D-Bus interface to query and set logging configurationorg.freedesktop.login1 (5)The D-Bus interface of systemd-logindorg.freedesktop.machine1 (5)The D-Bus interface of systemd-machinedorg.freedesktop.network1 (5)The D-Bus interface of systemd-networkdorg.freedesktop.portable1 (5)The D-Bus interface of systemd-portabledorg.freedesktop.systemd1 (5)The D-Bus interface of systemdorg.freedesktop.timedate1 (5)The D-Bus interface of systemd-timedatedos-release (5)Operating system identification
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passwd (5)the password filepci.ids (5)list of known identifiers related to PCI devicesproc (5)process information, system information, and sysctl pseudo-filesystemproc_apm (5)advanced power managementproc_buddyinfo (5)memory fragmentationproc_bus (5)installed busesproc_cgroups (5)control groupsproc_cmdline (5)kernel boot argumentsproc_config.gz (5)kernel build configurationproc_cpuinfo (5)CPU and system architecture informationproc_crypto (5)ciphers provided by kernel crypto APIproc_devices (5)major numbers and device groupsproc_diskstats (5)disk I/O statisticsproc_dma (5)ISA DMA channelsproc_driver (5)empty dirproc_execdomains (5)ABI personalities (obsolete)proc_fb (5)frame bufferproc_filesystems (5)supported filesystemsproc_fs (5)mounted filesystemsproc_ide (5)IDE channels and attached devicesproc_interrupts (5)number of interruptsproc_iomem (5)I/O memory mapproc_ioports (5)I/O port regionsproc_kallsyms (5)kernel exported symbolsproc_kcore (5)physical memoryproc_key-users (5)in-kernel key managementproc_keys (5)in-kernel key managementproc_kmsg (5)kernel messagesproc_kpagecgroup (5)memory cgroupsproc_kpagecount (5)count of mappings of physical pagesproc_kpageflags (5)physical pages frame masksproc_ksyms (5)kernel exported symbolsproc_loadavg (5)load averageproc_locks (5)current file locks and leasesproc_malloc (5)debug malloc (obsolete)proc_meminfo (5)memory usageproc_modules (5)loaded modulesproc_mounts (5)mounted filesystemsproc_mtrr (5)memory type range registersproc_net (5)network layer informationproc_partitions (5)major and minor numbers of partitionsproc_pci (5)PCI devicesproc_pid (5)process informationproc_pid_attr (5)security-related attributesproc_pid_autogroup (5)group tasks for the schedulerproc_pid_auxv (5)exec(3) informationproc_pid_cgroup (5)control groupproc_pid_clear_refs (5)reset the PG_Referenced and ACCESSED/YOUNG bitsproc_pid_cmdline (5)command lineproc_pid_comm (5)command nameproc_pid_coredump_filter (5)core dump filterproc_pid_cpuset (5)CPU affinity setsproc_pid_cwd (5)symbolic link to current working directoryproc_pid_environ (5)initial environmentproc_pid_exe (5)symbolic link to program pathnameproc_pid_fd (5)file descriptorsproc_pid_fdinfo (5)information about file descriptorsproc_pid_gid_map (5)user and group ID mappingsproc_pid_io (5)I/O statisticsproc_pid_limits (5)resource limitsproc_pid_map_files (5)memory-mapped filesproc_pid_maps (5)mapped memory regionsproc_pid_mem (5)memoryproc_pid_mountinfo (5)mount informationproc_pid_mounts (5)mounted filesystemsproc_pid_mountstats (5)mount statisticsproc_pid_net (5)network layer informationproc_pid_ns (5)namespacesproc_pid_numa_maps (5)NUMA memory policy and allocationproc_pid_oom_adj (5)OOM-killer score adjustmentproc_pid_oom_score (5)OOM-killer scoreproc_pid_oom_score_adj (5)OOM-killer score adjustmentproc_pid_pagemap (5)mapping of virtual pagesproc_pid_personality (5)execution domainproc_pid_projid_map (5)project ID mappingsproc_pid_root (5)symbolic link to root directoryproc_pid_seccomp (5)secure computing modeproc_pid_setgroups (5)allow or deny setting groupsproc_pid_smaps (5)XXX: What does 's' in "smaps" stand for?proc_pid_stack (5)kernel stackproc_pid_stat (5)status informationproc_pid_statm (5)memory usage informationproc_pid_status (5)memory usage and status informationproc_pid_syscall (5)currently executed system callproc_pid_task (5)thread informationproc_pid_timers (5)POSIX timersproc_pid_timerslack_ns (5)timer slack in nanosecondsproc_pid_uid_map (5)user and group ID mappingsproc_pid_wchan (5)wait channelproc_profile (5)kernel profilingproc_scsi (5)SCSIproc_self (5)process informationproc_slabinfo (5)kernel cachesproc_stat (5)kernel system statisticsproc_swaps (5)swap areasproc_sys (5)system information, and sysctl pseudo-filesystemproc_sys_abi (5)application binary informationproc_sys_debug (5)debugproc_sys_dev (5)device-specific informationproc_sys_fs (5)kernel variables related to filesystemsproc_sys_kernel (5)control a range of kernel parameters1 optsproc_sys_net (5)networkingproc_sys_proc (5)???proc_sys_sunrpc (5)Sun remote procedure call for NFSproc_sys_user (5)limits on the number of namespaces of various typesproc_sys_vm (5)virtual memory subsystemproc_sysrq-trigger (5)SysRq functionproc_sysvipc (5)System V IPCproc_thread-self (5)thread informationproc_tid (5)thread informationproc_tid_children (5)child tasksproc_timer_list (5)pending timersproc_timer_stats (5)timer statisticsproc_tty (5)ttyproc_uptime (5)system uptimeproc_version (5)kernel versionproc_vmstat (5)virtual memory statisticsproc_zoneinfo (5)memory zonesprocfs (5)process information, system information, and sysctl pseudo-filesystemprotocols (5)protocols definition filepstore.conf (5)PStore configuration filepstore.conf.d (5)PStore configuration file
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scols-filter (5)syntax for libsmartcols filter expressionsscr_dump (5)curses screen dumpsecuretty (5)list of terminals on which root is allowed to loginservices (5)Internet network services listshadow (5)shadowed password fileshells (5)pathnames of valid login shellsslabinfo (5)kernel slab allocator statisticssleep.conf.d (5)Suspend and hibernation configuration filesources.list (5)List of configured APT data sourcesssh_config (5)OpenSSH client configuration filesubgid (5)the configuration for subordinate group idssubuid (5)the configuration for subordinate user idssudo_logsrv.proto (5)Sudo log server protocolsudo_logsrvd.conf (5)configuration for sudo_logsrvdsudo_plugin (5)Sudo Plugin APIsudo.conf (5)configuration for sudo front-endsudoers (5)default sudo security policy pluginsudoers_timestamp (5)Sudoers Time Stamp Formatsysctl.conf (5)Linux kernel configuration parameterssysctl.d (5)Configure kernel parameters at bootsysfs (5)a filesystem for exporting kernel objectssystem.conf.d (5)System and session service manager configuration filessystemd-sleep.conf (5)Suspend and hibernation configuration filesystemd-system.conf (5)System and session service manager configuration filessystemd-user-runtime-dir (5)System units to start the user managersystemd-user.conf (5)System and session service manager configuration filessystemd.automount (5)Automount unit configurationsystemd.device (5)Device unit configurationsystemd.exec (5)Execution environment configurationsystemd.kill (5)Process killing procedure configurationsystemd.mount (5)Mount unit configurationsystemd.netdev (5)Virtual Network Device configurationsystemd.network (5)Network configurationsystemd.path (5)Path unit configurationsystemd.pcrlock (5)PCR measurement prediction filessystemd.pcrlock.d (5)PCR measurement prediction filessystemd.preset (5)Service enablement presetssystemd.resource-control (5)Resource control unit settingssystemd.scope (5)Scope unit configurationsystemd.service (5)Service unit configurationsystemd.slice (5)Slice unit configurationsystemd.socket (5)Socket unit configurationsystemd.swap (5)Swap unit configurationsystemd.target (5)Target unit configurationsystemd.timer (5)Timer unit configurationsystemd.unit (5)Unit configurationsysusers.d (5)Declarative allocation of system users and groups
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term (5)compiled terminfo terminal descriptiontermcap (5)terminal capability databaseterminal-colors.d (5)configure output colorization for various utilitiesterminfo (5)terminal capability databasetmpfiles.d (5)Configuration for creation, deletion, and cleaning of files and directoriestmpfs (5)a virtual memory filesystemttytype (5)terminal device to default terminal type mappingtzfile (5)timezone information
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updatedb.conf (5)a configuration file for updatedb(8)user_caps (5)user-defined terminfo capability formatuser-runtime-dir@.service (5)System units to start the user manageruser.conf.d (5)System and session service manager configuration filesuser@.service (5)System units to start the user managerutmp (5)login recordsutmpx (5)login records