8 System administration

11,068 pages in section 8.

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cp to cy

cp

cpg_overview CPG library overview
cpgr copy with locking the given file to the password or group file
cpigs Show which installed packages occupy the most variable space
cpimage make a copy of a SystemImager image.
cpipemon Cisco HDLC Monitor for Sangoma WAN Cards
cppw copy with locking the given file to the password or group file
cpsups Driver for newer model CyberPower UPSs
cpsv utility to install and manage runit services
cpu A tool for user and group administration
cpu-ldap a user administration tool for LDAP backends
cpucontrol control utility for the cpuctl(4) device
cpuctl program to control CPUs
cpudist-bpfcc On- and off-CPU task time as a histogram.
cpudynd CPU Dynamic frecuency daemon
cpufreqd intelligently monitor and manipulate CPU frequency
cpustat a tool to measure CPU utilization.
cputool CPUTool is a utility which manages CPU usage and system load
cpuunclaimed-bpfcc Sample CPU run queues and calculate unclaimed idle CPU. Uses Linux eBPF/bcc.
cpuwalk.bt Sample which CPUs are executing processes.. Uses bpftrace/eBPF.
cpuwalk.bt.bt Sample which CPUs are executing processes.. Uses bpftrace/eBPF.

cq

cqtest HylaFAX copy quality checking test program

cr

Crack programs to break password files
Crack-Reporter programs to break password files
crack_mkdict cracklib dictionary utilities
crack_packer cracklib dictionary utilities
crack_testlib cracklib test utilities
crack_testnum cracklib test utilities
crack_teststr cracklib test utilities
crack_unpacker cracklib dictionary utilities
cracklib-check Check passwords using libcrack2
cracklib-format cracklib dictionary utilities
cracklib-packer cracklib dictionary utilities
cracklib-unpacker cracklib dictionary utilities
cracklib-update Regenerate cracklib dictionary
cramfsck check a compressed ROM file system
crash Analyze Linux crash dump data or a live system
crashinfo analyze a core dump of the operating system
crda send to the kernel a wireless regulatory domain for a given ISO / IEC 3166 alpha2
create-cracklib-dict Check passwords using libcrack2
create-munge-key Create munge key
create_loopback_file system for creating custom bootdisks
createrepo Create repomd (xml-rpm-metadata) repository
createrepo_c Create rpm-md format (xml-rpm-metadata) repository
crio OCI-based implementation of Kubernetes Container Runtime Interface
criticalstat-bpfcc A tracer to find and report long atomic critical sections in kernel
criu
crm Pacemaker command line interface for configuration and management
crm_attribute Part of the Pacemaker cluster resource manager
crm_diff Part of the Pacemaker cluster resource manager
crm_error Part of the Pacemaker cluster resource manager
crm_failcount Part of the Pacemaker cluster resource manager
crm_master Part of the Pacemaker cluster resource manager
crm_mon Part of the Pacemaker cluster resource manager
crm_node Part of the Pacemaker cluster resource manager
crm_report Part of the Pacemaker cluster resource manager
crm_resource Part of the Pacemaker cluster resource manager
crm_rule Part of the Pacemaker cluster resource manager
crm_shadow Part of the Pacemaker cluster resource manager
crm_simulate Part of the Pacemaker cluster resource manager
crm_standby Part of the Pacemaker cluster resource manager
crm_ticket Part of the Pacemaker cluster resource manager
crm_uuid Part of the Pacemaker cluster resource manager
crm_verify Part of the Pacemaker cluster resource manager
crmadmin Part of the Pacemaker cluster resource manager
crmsh_crm_report create report for CRM based clusters (Pacemaker)
crmsh_hb_report create report for CRM based clusters (Pacemaker)
cron daemon to execute scheduled commands
cron-apt program to update the system using apt-get
crond daemon to execute scheduled commands
cronolog write log messages to log files named according to a template
cronosplit split log files into cronolog-compatible files
cross-check No manpage for this program, utility or function.
crosspost create the links for cross posted articles
cruft Check the filesystem for cruft (missing and unexplained files)
cruft-ng Check the filesystem for cruft (missing and unexplained files)
crunchgen generates build environment for a crunched binary
crushdiff ceph crush map test tool
crushtool CRUSH map manipulation tool
cryptdisks_start wrapper around cryptsetup that parses /etc/crypttab.
cryptdisks_stop wrapper around cryptsetup that parses /etc/crypttab.
cryptmount mount/unmount/configure an encrypted filesystem
cryptmount-setup setup a new encrypted filesystem
cryptsetup utility for configuring and managing encrypted storage devices
cryptsetup-benchmark benchmarks ciphers and KDF
cryptsetup-bitlkDump dump the header information of a BITLK (BitLocker compatible) device
cryptsetup-bitlkOpen open an encrypted device and create a mapping with a specified name
cryptsetup-close removes the existing mapping <name> (and the associated key)
cryptsetup-config set permanent configuration options (store to LUKS header)
cryptsetup-convert converts the device between LUKS1 and LUKS2 format
cryptsetup-create open an encrypted device and create a mapping with a specified name
cryptsetup-erase erase all keyslots
cryptsetup-fvault2Dump dump the header information of a FVAULT2 (FileVault2 compatible) device
cryptsetup-fvault2Open open an encrypted device and create a mapping with a specified name
cryptsetup-isLuks check if a device is a LUKS device
cryptsetup-loopaesOpen open an encrypted device and create a mapping with a specified name
cryptsetup-luksAddKey add a new passphrase
cryptsetup-luksChangeKey change an existing passphrase
cryptsetup-luksConvertKey converts an existing LUKS2 keyslot to new PBKDF parameters
cryptsetup-luksDump dump the header information of a LUKS device
cryptsetup-luksErase erase all keyslots
cryptsetup-luksFormat initialize a LUKS partition and set the initial passphrase
cryptsetup-luksHeaderBackup store a binary backup of the LUKS header and keyslot area
cryptsetup-luksHeaderRestore restore a binary backup of the LUKS header and keyslot area
cryptsetup-luksKillSlot wipe a keyslot from the LUKS device
cryptsetup-luksOpen open an encrypted device and create a mapping with a specified name
cryptsetup-luksRemoveKey remove the supplied passphrase from the LUKS device
cryptsetup-luksResume resume a suspended device and reinstate the key
cryptsetup-luksSuspend suspends an active device and wipes the key
cryptsetup-luksUUID print or set the UUID of a LUKS device
cryptsetup-open open an encrypted device and create a mapping with a specified name
cryptsetup-plainOpen open an encrypted device and create a mapping with a specified name
cryptsetup-reencrypt reencrypt LUKS encrypted volumes in-place
cryptsetup-refresh refresh parameters of an active mapping
cryptsetup-repair repair the device metadata
cryptsetup-resize resize an active mapping
cryptsetup-ssh manage LUKS2 SSH token
cryptsetup-status report the status for a mapping
cryptsetup-tcryptDump dump the header information of a TCRYPT (TrueCrypt or VeraCrypt compatible) device
cryptsetup-tcryptOpen open an encrypted device and create a mapping with a specified name
cryptsetup-token manage LUKS2 tokens
crywrap Simple TCP/IP service encryption using TLS/SSL

cs

cserver To start the Chinese server.
csync2 cluster synchronization tool, 2nd generation
csync2-compare simulate a directory sync between two hosts
csysdig

ct

ctermd CTERM services for Linux
cthreads-bpfcc Trace thread creation events in Java or pthreads.
ctl_backups Cyrus IMAP documentation Perform administrative operations directly on Cyrus backups.
ctl_conversationsdb Cyrus IMAP documentation Perform operations on the conversations databases
ctl_cyrusdb perform operations common to all Cyrus databases
ctl_deliver perform operations on the duplicate delivery database
ctl_mboxlist perform operations on the mailbox list database
ctladm CAM Target Layer control utility
ctld CAM Target Layer / iSCSI target daemon
ctlinnd Control the main InterNetNews daemon
ctlstat CAM Target Layer statistics utility
ctluser control lusers
ctr
ctrlaltdel set the function of the Ctrl-Alt-Del combination
ctstat unified Linux network statistics

cu

cups-browsed A daemon for browsing the Bonjour broadcasts of shared, remote CUPS printers
cups-calibrate ESP CUPS Printer Calibration Tool
cups-deviced cupsd helper programs (deprecated)
cups-driverd cupsd helper programs (deprecated)
cups-exec cupsd helper programs (deprecated)
cups-genppd generate Gutenprint PPD files for use with CUPS
cups-genppd.5.0 generate Gutenprint PPD files for use with CUPS
cups-genppdconfig.5.0 a user-friendly interface to generate Gutenprint PPD files for use with CUPS
cups-genppdupdate update CUPS+Gutenprint PPD files
cups-genppdupdate.5.0 update CUPS+Gutenprint PPD files
cups-lpd receive print jobs and report printer status to lpd clients (deprecated)
cups-polld cups printer polling daemon
cups-snmp cups snmp backend (deprecated)
cupsaccept accept/reject jobs sent to a destination
cupsaddsmb export printers to samba for windows clients
cupsctl configure cupsd.conf options
cupsd cups scheduler
cupsd-helper cupsd helper programs (deprecated)
cupsdisable stop/start printers and classes
cupsenable stop/start printers and classes
cupsfilter convert a file to another format using cups filters (deprecated)
cupsreject accept/reject jobs sent to a destination
curvedns high-speed high-security elliptic-curve cryptography DNS server
curvetun a lightweight curve25519 ip4/6 tunnel
cutter cut tcp/ip connections

cv

cvm-benchclient testing the performance of a CV module
cvm-checkpassword checkpassword interface for CVM modules
cvm-mysql MySQL module
cvm-pgsql PgSQL module
cvm-pwfile POSIX-style passwd file module
cvm-pwfile-local No manpage for this program, utility or function.
cvm-pwfile-udp No manpage for this program, utility or function.
cvm-qmail qmail configuration lookup module
cvm-testclient testing CV modules from the command line
cvm-unix UNIX/POSIX-standard module
cvm-unix-local No manpage for this program, utility or function.
cvm-unix-udp No manpage for this program, utility or function.
cvm-vmailmgr vmailmgr virtual user validation module
cvs-pserver The GNU Concurrent Versions System
cvsbug send problem report (PR) about CVS to a central support site
cvsconfig The GNU Concurrent Versions System
cvsd chroot wrapper to run ‘cvs pserver’ more securely.
cvsd-buginfo print out cvsd configuration information for bug reports
cvsd-buildroot create a chrooted directory structure for use in cvsd.
cvsd-passwd generate password entries for repositories
cvsupd network distribution server for CVS repositories
cvt-pppconfig format pppconfig peer files into diald config files
cvt_cyrusdb convert a database file between cyrus database formats
cvtbatch Convert Usenet batch files to INN format

cw

cwdaemon morse daemon for the serial or parallel port
cwnnkill To terminate the cserver.

cx

cxgbetool userspace companion to Chelsio cxgbe Ethernet driver

cy

cyberjack
cyberpower Serial Driver for most Cyber Power Systems UPS equipment
cyclades-ser-cli
cyclades-serial-client
cyclicdeadline This program is used to test the deadline scheduler (SCHED_DEADLINE) using a cyclictest style program
cyclictest High resolution test program
cyr_backup Cyrus IMAP documentation Inspect contents of Cyrus backups.
cyr_dbtool manage Cyrus databases
cyr_df report Cyrus spool partition disk space usage
cyr_expire expire messages and duplicate delivery database entries
cyr_synclog add entries to the replication log
cyr_virusscan Cyrus IMAP documentation Scan for viruses using configured virus scanner or manage infected messages using search criteria.
cyrdeliver deliver mail to an IMAP mailbox
cyrdump dump mailboxes to stdout
cyrmaster master Cyrus process
cyrquota report and optionally fix quota usage
cyrreconstruct reconstruct mailboxes
cyrus-arbitron Cyrus IMAP documentation Report readership statistics for mailboxes on the server.
cyrus-arbitronsort sorts arbitron(8) output
cyrus-backupd Cyrus IMAP documentation Cyrus Backups server process
cyrus-chk_cyrus Cyrus IMAP documentation Perform a consistency check of the Cyrus IMAP mail spool.
cyrus-ctl_cyrusdb Cyrus IMAP documentation Perform administrative operations directly on Cyrus IMAP databases.
cyrus-ctl_deliver Cyrus IMAP documentation Perform operations on the duplicate delivery database
cyrus-ctl_mboxlist Cyrus IMAP documentation Perform operations on the mailbox list database
cyrus-ctl_zoneinfo Cyrus IMAP documentation perform operations on the zoneinfo database
cyrus-cvt_cyrusdb Cyrus IMAP documentation Convert a database file between cyrus database formats
cyrus-cvt_xlist_specialuse Cyrus IMAP documentation Convert legacy xlist-flag settings to user special-use annotations.
cyrus-cyr_buildinfo Cyrus IMAP documentation Cyrus build-configuration inspection tool
cyrus-cyr_dbtool Cyrus IMAP documentation Manage Cyrus databases
cyrus-cyr_deny Cyrus IMAP documentation deny users access to Cyrus services
cyrus-cyr_df Cyrus IMAP documentation Report Cyrus spool partition disk space usage
cyrus-cyr_expire Cyrus IMAP documentation Expire messages and duplicate delivery database entries
cyrus-cyr_info Cyrus IMAP documentation General cyrus inspection tool
cyrus-cyr_ls Cyrus IMAP documentation List Cyrus mailbox directory contents
cyrus-cyr_synclog Cyrus IMAP documentation is used to append a value to the log file. You can either specify the log type and value, or an entire log line.
cyrus-cyr_userseen Cyrus IMAP documentation is used to clear seen state information for the mail store. WARNING:
cyrus-cyradm Cyrus IMAP documentation
cyrus-cyrdump Cyrus IMAP documentation Dumps out a basic copy of mailbox data to stdout. There is no corresponding restore command.
cyrus-deliver Cyrus IMAP documentation intro
cyrus-dump dump mailboxes to stdout
cyrus-fetchnews Cyrus IMAP documentation Retrieve new articles from peer and feed to Cyrus
cyrus-fud Cyrus IMAP documentation Provide information about user mailboxes
cyrus-httpd Cyrus IMAP documentation HTTP server process
cyrus-idled Cyrus IMAP documentation Provide near real-time updates for IMAP IDLE
cyrus-imapd Cyrus IMAP documentation IMAP server process
cyrus-imspd
cyrus-ipurge Cyrus IMAP documentation Delete mail from IMAP mailbox or partition based on age or size
cyrus-lmtpd Cyrus IMAP documentation LMTP server process
cyrus-lmtpproxyd Cyrus IMAP documentation This is a hard linked copy of lmtpd(8), retained for backwards compatibility from when a murder frontend used its own lmtpd binaries.
cyrus-makedirs Sets up the Cyrus IMAPd system directories (spools)
cyrus-master Cyrus IMAP documentation The Cyrus IMAP master process.
cyrus-mbexamine Cyrus IMAP documentation Examine a cyrus-format mailbox
cyrus-mbpath Cyrus IMAP documentation Translate mailbox names to filesystem paths
cyrus-mbtool Cyrus IMAP documentation intro
cyrus-mupdate Cyrus IMAP documentation MUPDATE server process
cyrus-nntpd Cyrus IMAP documentation NNTP server process
cyrus-notifyd Cyrus IMAP documentation Cyrus notification server
cyrus-pop3d Cyrus IMAP documentation POP3 server process
cyrus-pop3proxyd Cyrus IMAP documentation This is a hard linked copy of pop3d(8), retained for backwards compatibility from when a murder frontend used its own pop3d binaries.
cyrus-promstatsd Cyrus IMAP documentation Cyrus Prometheus statistics collating daemon
cyrus-proxyd Cyrus IMAP documentation Proxyd is a symlink to imapd(8) if you build with murder enabled.
cyrus-ptdump Cyrus IMAP documentation Program to dump the current PTS (protection database authorization) cache.
cyrus-ptexpire Cyrus IMAP documentation Program to expire pts cache DB entries on command.
cyrus-ptloader Cyrus IMAP documentation The AFS & LDAP pts server loader service
cyrus-quota Cyrus IMAP documentation Report and optionally fix storage and message quota usage.
cyrus-reconstruct Cyrus IMAP documentation Reconstruct mailboxes
cyrus-relocate_by_id Cyrus IMAP documentation Relocate mailbox trees by their mailbox ids
cyrus-restore Cyrus IMAP documentation Restore content from Cyrus backups.
cyrus-rmnews Cyrus IMAP documentation Expunge and remove news articles
cyrus-sievec Cyrus IMAP documentation Script to compile a sieve script to bytecode.
cyrus-sieved Cyrus IMAP documentation Tool to decompile a sieve script back from bytecode.
cyrus-smmapd Cyrus IMAP documentation Sendmail socket map daemon
cyrus-squatter Cyrus IMAP documentation Create SQUAT and Xapian indexes for mailboxes
cyrus-sync_client Cyrus IMAP documentation Client side of the synchronization (replication) engine
cyrus-sync_reset Cyrus IMAP documentation Account reset utility. DANGER.
cyrus-sync_server Cyrus IMAP documentation Server side of the synchronization (replication) engine
cyrus-timsieved Cyrus IMAP documentation CMU hack for getting sieve scripts onto the server
cyrus-tls_prune Cyrus IMAP documentation Prune expired sessions from the TLS sessions database
cyrus-unexpunge Cyrus IMAP documentation Recover messages the user has (accidentally) deleted.
cytune tune driver parameters for Cyclades-Z multiport serial card

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