Linux Manuals session 8

ping – send ICMP ECHO_REQUEST to network hosts Synopsis ping [-aAbBdDfhLnOqrRUvV46] [-c count] [-F flowlabel] [-i interval] [-I interface] [-l preload] [-m mark] [-M pmtudisc_option] [-N nodeinfo_option] [-w deadline] [-W timeout] [-p pattern] [-Q tos] [-s packetsize] [-S sndbuf] [-t ttl] [-T timestamp option] [hop…] {destination} Description ping uses the ICMP protocol’s mandatory ECHO_REQUEST datagram to elicit an ICMP ECHO_RESPONSE from a host or gateway. ECHO_REQUEST datagrams (“pings”) have an IP…

ping – send ICMP ECHO_REQUEST to network hosts Synopsis ping [-aAbBdDfhLnOqrRUvV46] [-c count] [-F flowlabel] [-i interval] [-I interface] [-l preload] [-m mark] [-M pmtudisc_option] [-N nodeinfo_option] [-w deadline] [-W timeout] [-p pattern] [-Q tos] [-s packetsize] [-S sndbuf] [-t ttl] [-T timestamp option] [hop…] {destination} Description ping uses the ICMP protocol’s mandatory ECHO_REQUEST datagram to elicit an ICMP ECHO_RESPONSE from a host or gateway. ECHO_REQUEST datagrams (“pings”) have an IP…

ping – send ICMP ECHO_REQUEST to network hosts Synopsis ping [-aAbBdDfhLnOqrRUvV46] [-c count] [-F flowlabel] [-i interval] [-I interface] [-l preload] [-m mark] [-M pmtudisc_option] [-N nodeinfo_option] [-w deadline] [-W timeout] [-p pattern] [-Q tos] [-s packetsize] [-S sndbuf] [-t ttl] [-T timestamp option] [hop…] {destination} Description ping uses the ICMP protocol’s mandatory ECHO_REQUEST datagram to elicit an ICMP ECHO_RESPONSE from a host or gateway. ECHO_REQUEST datagrams (“pings”) have an IP…

pifconfig – display information about a network interface Synopsis pifconfig [INTERFACE [INTERFACE [INTERFACE] …]] Description This script mimic ifconfig behavior, but is written purely in python and python module ethtool. Options INTERFACE Display information about only the listed interfaces. If no interface is given all interfaces are displayed. -h, –help Show help message and exit….

pidof — find the process ID of a running program. Synopsis pidof [-s] [-c] [-n] [-x] [-z] [-o omitpid[,omitpid…]] [-o omitpid[,omitpid…]…] [-d sep] program [program…] Description Pidof finds the process id’s (PIDs) of the named programs. It prints those id’s on the standard output. This program is on some systems used in run-level change scripts,…

pickup – Postfix local mail pickup Synopsis pickup [generic Postfix daemon options] Description The pickup(8) daemon waits for hints that new mail has been dropped into the maildrop directory, and feeds it into the cleanup(8) daemon. Ill-formatted files are deleted without notifying the originator. This program expects to be run from the master(8) process manager….

 –  Synopsis Print help about puppet types on the console. Run with aq-haq to get detailed help. Usage pi [-h|–help] [-s|–short] [-p|–providers] [-l|–list] [-m|–meta] Description Prints details of Puppet types, providers and metaparameters on the console. Options help: Print this help text providers: Describe providers in detail for each type list: List all types meta:…

php-fpm – PHP FastCGI Process Manager ‘PHP-FPM’ Synopsis php-fpm [options] Description PHP is a widely-used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML. This is a variant of PHP that will run in the background as a daemon, listening for CGI requests. Output is logged to /var/log/php-fpm.log….

photorec – Recover lost files from harddisk, digital camera and cdrom Synopsis photorec [/log] [/debug] [/d recup_dir] [device|image.dd|image.e01] photorec /version Description PhotoRec is file data recovery software designed to recover lost files including video, documents and archives from Hard Disks and CDRom and lost pictures (Photo Recovery) from digital camera memory. PhotoRec ignores the filesystem and goes after…

phc2sys_selinux – Security Enhanced Linux Policy for the phc2sys processes Description Security-Enhanced Linux secures the phc2sys processes via flexible mandatory access control. The phc2sys processes execute with the phc2sys_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier. For example: ps -eZ | grep…

pgtune – PostgreSQL Config Tuner Synopsis pgtune -i $PGDATA/postgresql.conf -o $PGDATA/postgresql.conf.pgtune Description Pgtune takes the wimpy default postgresql.conf and expands the database server to be as powerful as the hardware it’s being deployed on. pgtune works by taking an existing postgresql.conf file as an input, making changes to it based on the amount of RAM…

pgpool – PostgreSQL connection pool daemon Synopsis pgpool [ -c] [ -f config_file ] [ -F pcp_config_file ] [ -a hba_file ] [ -n ] [ -D ] [ -d ] pgpool [ -f config_file ] [ -F pcp_config_file ] [ -a hba_file ] [ -m {s[mart]|f[ast]|i[mmediate]} ] stop pgpool [ -f config_file ] […

pethtool – Display or change ethernet card settings Synopsis pethtool [OPTIONS] [<INTERFACE>] Description This script mimic ethtool behavior, but is written purely in python and python module ethtool. Options INTERFACE Is the name of the ethernet device on which pethtool should operate. -h, –help Show help message and exit. -c|–show-coalesce Show coalesce options -C|–coalesce Set…

pesign_selinux – Security Enhanced Linux Policy for the pesign processes Description Security-Enhanced Linux secures the pesign processes via flexible mandatory access control. The pesign processes execute with the pesign_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier. For example: ps -eZ | grep…

perl-nocem – A NoCeM-on-spool implementation for INN 2.x Synopsis perl-nocem Description NoCeM, which is pronounced No See ‘Em, is a protocol enabling authenticated third-parties to issue notices which can be used to cancel unwanted articles (like spam and articles in moderated newsgroups which were not approved by their moderators). It can also be used by…

PERFQUERY – Query Infiniband Port Counters On A Single Port Synopsis perfquery [options] [<lid|guid> [[port(s)] [reset_mask]]] Description perfquery uses PerfMgt GMPs to obtain the PortCounters (basic performance and error counters), PortExtendedCounters, PortXmitDataSL, PortRcvDataSL, PortRcvErrorDetails, PortXmitDiscardDetails, PortExtendedSpeedsCounters, or PortSamplesControl from the PMA at the node/port specified. Optionally shows aggregated counters for all ports of node. Finally…

perfdhcp – DHCP benchmarking tool Synopsis perfdhcp [-1] [-4|-6] [-A encapsulation-level] [-a aggressivity] [-b base] [-B] [-c] [-d drop-time] [-D max-drop] [-e lease-type] [-E time-offset] [-f renew-rate] [-F release-rate] [-h] [-i] [-I ip-offset] [-l local-address|interface] [-L local-port] [-M mac-list-file] [-n num-request] [-O random-offset] [-p test-period] [-P preload] [-r rate] [-R num-clients] [-s seed] [-S srvid-offset] [-t report] [-T template-file] [-v] [-W wrapped] [-x diagnostic-selector] [-X xid-offset] [server] Description perfdhcp is a DHCP benchmarking tool. It provides a way of measuring the…

pegasus_selinux – Security Enhanced Linux Policy for the pegasus processes Description Security-Enhanced Linux secures the pegasus processes via flexible mandatory access control. The pegasus processes execute with the pegasus_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier. For example: ps -eZ | grep…

pegasus_openlmi_unconfined_selinux – Security Enhanced Linux Policy for the pegasus_openlmi_unconfined processes Description Security-Enhanced Linux secures the pegasus_openlmi_unconfined processes via flexible mandatory access control. The pegasus_openlmi_unconfined processes execute with the pegasus_openlmi_unconfined_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier. For example: ps -eZ | grep…

pegasus_openlmi_system_selinux – Security Enhanced Linux Policy for the pegasus_openlmi_system processes Description Security-Enhanced Linux secures the pegasus_openlmi_system processes via flexible mandatory access control. The pegasus_openlmi_system processes execute with the pegasus_openlmi_system_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier. For example: ps -eZ | grep…