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Allows a command to continue running after logging out nproc: Queries the number of (active) processors pathchk: Checks whether file names are valid or portable pinky: A lightweight version of finger: printenv: Prints environment variables: printf: Formats and prints data pwd: Prints the current working directory: readlink: Displays value of a ...
The command is a kind of filter program. Typically it is used after sort. It can also output only the duplicate lines (with the -d option), or add the number of occurrences of each line (with the -c option). For example, the following command lists the unique lines in a file, sorted by the number of times each occurs: $
Google Sheets is a spreadsheet application and part of the free, web-based Google Docs Editors suite offered by Google. Google Sheets is available as a web application; a mobile app for: Android, iOS, and as a desktop application on Google's ChromeOS. The app is compatible with Microsoft Excel file formats. [5]
Unique keys play an important part in all relational databases, as they tie everything together. A unique key is a column that identifies a given entity, whereas a foreign key is a column in another table that refers to a primary key. Keys can comprise several columns, in which case they are composite keys.
With Linux kernel 3.17+, the VirtIO RNG was modified to have a default quality defined above 0, [13] and as such, is currently the only HWRNG mixed into /dev/random by default. The entropy pool can be improved by programs like timer_entropyd , haveged , randomsound etc.
LAMP—Linux Apache MySQL Perl; LAMP—Linux Apache MySQL PHP; LAMP—Linux Apache MySQL Python; LAN—Local Area Network; LBA—Logical Block Addressing; LB—Load Balancer; LCD—Liquid Crystal Display; LCR—Least Cost Routing; LCOS—Liquid Crystal On Silicon; LDAP—Lightweight Directory Access Protocol; LE—Logical Extents; LED—Light ...
In Unix-like operating systems, find is a command-line utility that locates files based on some user-specified criteria and either prints the pathname of each matched object or, if another action is requested, performs that action on each matched object.
Get configuration values getopts: Shell programming Mandatory Parse utility options gettext: Misc Mandatory Retrieve text string from messages object grep: Misc Mandatory Search text for a pattern Version 4 AT&T UNIX hash: Misc Mandatory Hash database access method head: Text processing Mandatory Copy the first part of files PWB UNIX [citation ...