The Linux Manuals (man pages) document is an important part of Linux documents. Linux Manuals are organized as several sections. Each section has a group of commands for a specific area in Linux usage, administration or development.
createuser – define a new PostgreSQL user account Synopsis createuser [connection-option…] [option…] [username]Descriptioncreateuser creates a new PostgreSQL user (or more precisely, a role). Only superusers and users with CREATEROLE privilege can create new users, so createuser must be invoked by someone who can connect as a superuser or a user with CREATEROLE privilege. If you…
createlang – install a PostgreSQL procedural language Synopsis createlang [connection-option…] langname [dbname] createlang [connection-option…] –list | -l [dbname]Descriptioncreatelang is a utility for adding a procedural language to a PostgreSQL database. createlang is just a wrapper around the CREATE EXTENSION (CREATE_EXTENSION(7)) SQL command. Caution createlang is deprecated and may be removed in a future PostgreSQL release….
createhdf – Create a blank IDE hard disk image in .hdf format Synopsiscreatehdf [ -c ] [ -s ] cylinders heads sectors file Descriptioncreatehdf creates a blank image of an IDE hard disk in .hdf format for use with Sinclair ZX Spectrum emulators. Options-c specifies that the .hdf image should be created in `compact’ mode,…
createdb – create a new PostgreSQL database Synopsis createdb [connection-option…] [option…] [dbname [description]]Descriptioncreatedb creates a new PostgreSQL database. Normally, the database user who executes this command becomes the owner of the new database. However, a different owner can be specified via the -O option, if the executing user has appropriate privileges. createdb is a wrapper around…
create_makefiles – Recreates all Makefiles beneath a directory Synopsis create_makefiles [dir] Descriptioncreate_makefiles recreates all Makefiles in dir and its (recursed) subdirectories from the corresponding Makefile.am templates. This script must be run from the toplevel directory (the one containing configure). This script saves time compared to re-running configure completely. If the source directory is different from…
create_makefile – Creates Makefile.in and Makefile from a Makefile.am Synopsis create_makefile [relativepath/Makefile] [relativepath]Descriptioncreate_makefile creates the Makefile.in and Makefile in a subdirectory containing a Makefile.am. This script saves time compared to re-running configure completely Note that you must supply the path to the desired MakefileMakefile.am (though the final /Makefile may be omitted). This script may be…
create_cvsignore – Create preliminary .cvsignore in the current directory Synopsis createcvsignore Descriptioncreate_cvsignore is used to create a preliminary .cvsignore in the current directory. It does this based on certain contents it finds in Makefile.am No lines will be removed from any existing .cvsignore. If there is not already a .cvsignore file, it will be added…
createPYMB, readPYBase, readPYMB, mb2org, scel2org – fcitx Pinyin related tools SynopsiscreatePYMB <PinyinFile> <PhraseFile> readPYBase [-b <PinyinMBFile>] [-h] readPYMB [-f <PhraseMBFile>] [-s] [-h] mb2org [-b <PinyinMBFile>] [-f <PhraseMBFile>] [-s] [-h] scel2org [-o <Phrase File>] [-h] Description-b <PinyinMBFile> If not specified, it will read system default pybase.mb. -f <PhraseMBFile> If not specified, it will read user default…
create-native-map – C/C# Mapping Creator Synopsiscreate-native-map [OPTIONS]* ASSEMBLY-FILE-NAME OUPUT-PREFIX Options–autoconf-header=HEADER HEADER is a header file name in the syntax typically used with the C #include statement, e.g. #include <stdio.h> or #include local.h . An Autoconf-formatted macro is generated from the include name, and a #include directive is wrapped within a #ifdef block for the Autoconf…
crc32 – compute CRC-32 checksums for the given files Synopsiscrc32 filename [ filename … ] Descriptioncrc32 is a simple utility that calculates the CRC-32 checksum for each of the given files. Note that the CRC-32 checksum is merely used for error detection in transmission and storage. It is not intended to guard against the malicious…
cpupower – Shows and sets processor power related values Synopsis cpupower [ -c cpulist ] <command> [ARGS] cpupower -v|–version cpupower -h|–help Descriptioncpupower is a collection of tools to examine and tune power saving related features of your processor. The manpages of the commands (cpupower-<command>(1)) provide detailed descriptions of supported features. Run cpupower help to get…
cpupower-set – Set processor power related kernel or hardware configurations Synopsis cpupower set [ -b VAL ] Descriptioncpupower set sets kernel configurations or directly accesses hardware registers affecting processor power saving policies. Some options are platform wide, some affect single cores. By default values are applied on all cores. How to modify single core configurations…
cpupower-monitor – Report processor frequency and idle statistics Synopsis cpupower monitor -l cpupower monitor [-c][-m <mon1>,[<mon2>,…]] [-i seconds] cpupower monitor [-c][-m <mon1>,[<mon2>,…]] command Descriptioncpupower-monitor reports processor topology, frequency and idle power state statistics. Either command is forked and statistics are printed upon its completion, or statistics are printed periodically. cpupower-monitor implements independent processor sleep state…
cpupower-info – Shows processor power related kernel or hardware configurations Synopsis cpupower info [ -b ] Descriptioncpupower info shows kernel configurations or processor hardware registers affecting processor power saving policies. Some options are platform wide, some affect single cores. By default values of core zero are displayed only. cpupower –cpu all cpuinfo will show the…
cpupower idle-set – Utility to set cpu idle state specific kernel options Syntaxcpupower [ -c cpulist ] idle-info [options] DescriptionThe cpupower idle-set subcommand allows to set cpu idle, also called cpu sleep state, specific options offered by the kernel. One example is disabling sleep states. This can be handy for power vs performance tuning. Options-d…
cpupower idle-info – Utility to retrieve cpu idle kernel information Syntaxcpupower [ -c cpulist ] idle-info [options] DescriptionA tool which prints out per cpu idle information helpful to developers and interested users. Options-f –silent Only print a summary of all available C-states in the system. -e –proc deprecated. Prints out idle information in old /proc/acpi/processor/*/power…
cpupower frequency-set – A small tool which allows to modify cpufreq settings. Syntaxcpupower [ -c cpu ] frequency-set [options] Descriptioncpupower frequency-set allows you to modify cpufreq settings without having to type e.g. "/sys/devices/system/cpu/cpu0/cpufreq/scaling_set_speed" all the time. Options-d –min <FREQ> new minimum CPU frequency the governor may select. -u –max <FREQ> new maximum CPU frequency the…
cpupower frequency-info – Utility to retrieve cpufreq kernel information Syntaxcpupower [ -c cpulist ] frequency-info [options] DescriptionA small tool which prints out cpufreq information helpful to developers and interested users. Options-e –debug Prints out debug information. -f –freq Get frequency the CPU currently runs at, according to the cpufreq core. -w –hwfreq Get frequency the…
cpuid – Dump CPUID information for each CPU Synopsiscpuid [options…] Descriptioncpuid dumps detailed information about the CPU(s) gathered from the CPUID instruction, and also determines the exact model of CPU(s) from that information. It dumps all information available from the CPUID instruction. The exact collection of information available varies between manufacturers and processors. The following…
cpufreq-set – A small tool which allows to modify cpufreq settings. Syntaxcpufreq-set [options] Descriptioncpufreq-set allows you to modify cpufreq settings without having to type e.g. "/sys/devices/system/cpu/cpu0/cpufreq/scaling_set_speed" all the time. Options-c –cpu <CPU> number of CPU where cpufreq settings shall be modified. -d –min <FREQ> new minimum CPU frequency the governor may select. -u –max <FREQ>…