Linux What Command

PHP invoke Linux Command details/* The function to invoke Linux commands in the PHP tutorial is string exec (String command, string [array], int [return_var]); such as exec ("VPOPMA ...")

Apt is a Linux command for the Deb package-managed operating system that is used to automatically search, install, upgrade, uninstall software or operating system from the Internet's software warehouse. Apt commands generally require root permission execution, so generally follow the sudo command example: sudo apt xxxx under the apt use method of the detailed guide, for everyone to see the use of apt install &http://www.aliyun.co ...

Feature Description: Displays the size of the directory or file. Syntax: du&http://www.aliyun.com/zixun/aggregation/37954.html >nbsp; [-ABCDHHKLMSSX] [-L < symbolic connection] [-x < file] [--block-size] [--exclude=< directory or file [--max-d ...

Function Description: Exit the extraction device. Syntax: eject&http://www.aliyun.com/zixun/aggregation/37954.html >nbsp; [-dfhnqrstv] [-a < switch] [C < CD-ROM number] [Device] Supplemental NOTE: If the device has been mounted, then eject will remove the device before exiting. Parameters:   ...

Feature Description: List x&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; The component defined by the server. Syntax: xlsatoms [-display< display number >][-format< output format >][-name< ingredient name >][-range< List Range] Supplemental Note: ...

Feature Description: Displays the space and restrictions used by the disk. Syntax: quota&http://www.aliyun.com/zixun/aggregation/37954.html >nbsp; [-QUVV] [User name ...] or quota [-gqvv][group name ...] Supplemental Note: Execute quota directives, query disk space limitations, and know how much space has been used. Parameters: ...

Feature Description: Deletes the directory. Syntax: rmdir&http://www.aliyun.com/zixun/aggregation/37954.html >nbsp; [-P] [--help] [--ignore-fail-on-non-empty] [--verbose] [--version] [Directory ...] Supplemental Note: When there is an empty directory to delete, you can use the RMDIR directive. Parameters: & ...

Function Description: Remote tape Transfer Protocol module. Syntax: RMT supplemental NOTE: Through the RMT directive, users can control the dumping and restore operations of the tape drive remotely via IPC wiring.

Function Description: Display inode content. Syntax: stat&http://www.aliyun.com/zixun/aggregation/37954.html >nbsp; [File or directory] Supplemental Note: Stat Displays the contents of the Inode in text format.

Feature Description: Lists the contents of the directory in a tree chart. Syntax: tree&http://www.aliyun.com/zixun/aggregation/37954.html >nbsp; [-aacddffgilnnpqstux] [-i < template style] [-P < template style] [Directory ...] Supplementary Note: Execute tree instruction, it will list all the files in the specified directory, ...

Function Description: Remove the file system. Syntax: umount&http://www.aliyun.com/zixun/aggregation/37954.html >nbsp; [-AHNRVV] [-T < file system Type] [File system] Supplemental Note: Umount can dismount the file system currently hanging in the Linux directory. Parameters:-A &N ...

Function Description: Set up the current system startup disk. Syntax: mkbootdisk&http://www.aliyun.com/zixun/aggregation/37954.html >nbsp; [--noprompt] [--verbose] [--version] [--device < equipment] [--mkinitrdargs < parameters] [Ker ...

Feature Description: Lists the client applications in the monitor. Syntax: xlsclients&http://www.aliyun.com/zixun/aggregation/37954.html >nbsp; [-al] [-display< Display Number [-m< maximum instruction length] Supplemental Note: The Execute xlsclients Directive lists client application information that is executing in a monitor. Ginseng ...

Function Description: Switch directories. Syntax: cd&http://www.aliyun.com/zixun/aggregation/37954.html >nbsp; [Destination directory] Supplemental Note: The CD directive allows users to switch between different directories, but the user must have sufficient access to the destination directory.

Function Description: Set up the system of various services. Syntax: ntsysv&http://www.aliyun.com/zixun/aggregation/37954.html >nbsp; [--back] [--level < grade 5643.html >] Supplemental Note: This is the program developed by Red Hat Company under the GPL rule, it has interactive operation interface, you ...

Function Description: Open the user's projection password. Syntax: Pwconv added: User and group passwords in Linux systems are stored in files named passwd and group, which are located in the ETC directory. Anyone can read them because of the operation of the system, creating a safety flaw. The projection password changes the password in the file to the shadow and Gshadow files under the ETC directory, only allows the System Manager to read, and replaces the original password with the "x" character, the effective strong ...

Feature Description: Displays the module that is loaded into the system. Syntax: lsmod Additional note: Executing the lsmod instruction lists all modules that are loaded into the system. The core of the Linux operating system is modular, so when compiling the core, it is important to put all the functions into the core. You can compile these functions into separate modules and load them separately as needed.

Function Description: Set the size of the terminal window. Syntax: resize&http://www.aliyun.com/zixun/aggregation/37954.html >nbsp; [-CU] [-S < columns > < lines] Supplemental NOTE: The implementation of the resize directive can set the virtual terminal window size. Parameters:-C Even if the user environment is not c ...

Function Description: Find the strings that match the criteria in the file. Syntax: fgrep&http://www.aliyun.com/zixun/aggregation/37954.html >nbsp; [Template Style] [File or directory ...] Supplemental Note: This directive is equivalent to executing the grep instruction plus the parameter "-F", as described in the grep instructions.

Feature Description: Format text file. Syntax: fmt&http://www.aliyun.com/zixun/aggregation/37954.html >nbsp; [-cstu] [-p< Column Start string [-w< per column of characters [--help] [--version] [File ...] Supplemental Note: The FMT instruction reads the content from the specified file, rearranged it according to the specified format, and outputs ...