docker commands tutorial

Machine Learning-Overview of common matlab programming commands -- Summary from ng-ml-class octave/MATLAB tutorial CourseraA. basic operations and moving data around1 in command line mode, you can use Shift + press enter to append the next line to output 2 length command to apply to the matrix, and return a higher one-dimensional dimension3 help + command is the display command. mat File Save hello. mat B u

process it appears that the current host has only the kernel and the current processshell--Child Shell Pstree ViewBash Features:1. Command historyView command history: Historical-C: Empty command history-D OFFSET [n]: Delete the specified location history command-W: Save the Command history to the history filecommand history buffer Size: histsize echo $HISTSIZECommand history Usage Tips:!n: Execute nth command in command history!-n: Executes the last nth command in the command history!: Execute

) fairly occupies system resources2.pwd:printing working Directory3.cd:change DirectoryHome directory, home directory, home dirctoryCD ~username: Access to the specified user's home directory, only administrator privileges to useCD-: Switch back and forth between the current directory and the previous directory4.type: Shows what type of command it belongs toCommand type:Built-in command: Shell (built-in) builtinExternal command: There is an executable file corresponding to the command name in a

1.find[[email protected] tem]# find/etc-name init* (full wildcard)[Email protected] tem]# find/etc-name init??? (Single wildcard character)/etc/inittab(Case sensitive)-iname (case insensitive);[Email protected] tem]# find/etc-name init???/etc/inittab[Email protected] tem]# find/etc-iname init???/etc/inittab/etc/inittab(Note: Server peaks cannot be found with find, the more accurate the better!) ）2.Linux Fundamentals and Applications tutorial 004 (Simp

OpenMP Tutorial: https://computing.llnl.gov/tutorials/openMP/#ClausesDirectives (1) which of the following statements can accept the clauses: Clause Directive Parallel Do/ Sections Single ParallelDo/ ParallelSections If Private Shared Default Firstprivate

One, copy commandCopy is primarily used for copying files and directories. Examples are as follows:Example 1. To copy a single file:copy file="A.txt" tofile="B.txt"/>Example 2. To copy a file directory:copy todir="dest_dir"> fileset dir="src_dir"/>copy>Example 3. Copy files to a different directorycopy file="source.txt" todir="dest_dir"/>Second, delete commandDelete the file or directory. Examples are as follows:Example 1. Delete a file:delete file="A.txt"/>Example 2. To delete a directory:de

One: Configure private CA commands1. Edit the configuration file/etc/pki/tls/openssl.cnfChange dir to ".. /.. /ca "changed to"/etc/pki/ca "You can change the default country, province, citymkdir certs Newcerts CRLTouch Index.txtTouch serialEcho >serial2. Create a private key (the public key is generated from this)Under the/etc/pki/ca directory(umask 077;openssl genrsa 2048 >private/cakey.pem) or(Umask 077;openssl genrsa-out PRIVATE/CAKEY.PEM 2048)Note: The-out option needs to be followed GenrsaO

query time, resulting in slower efficiency. The workaround is to use the index for sorting. If the order required for the query is the same as the sort used by the index, because the indexes are sorted, and therefore the results are returned in sequential read by index, the using Filesort does not appear at this time.As for the difference between using index and using index condition, I refer to an article on StackOverflowHttp://stackoverflow.com/questions/1687548/mysql-explain-using-index-vs-u

the query, and Usingfilesort will appear. Sorting naturally increases query time, resulting in slower efficiency. The workaround is to use the index for sorting. If the order required for the query is the same as the sort used by the index, because the indexes are sorted, and therefore the results are returned in sequential read by index, the using Filesort does not appear at this time. As for the difference between using index and using index condition, I refer to an article on StackOverflow H

First, view the text:Cat: Connect and Show TAC: Reverse display of text content-N: Show line numbers-E: Displays the line terminator for each lineNote: For Linux systems, the line terminator for each line of the text file is $. The Windows system has two terminator: $ and line breaks.Second, split screen display:MORE: Only support backward, turn to the last screen exit.Less: Same as manSPACE:B:ENTER:K:Third, head, tailHead-n View Top N rowsTail-n: View after n rows-F: Look at the end of the file

time-I: Inactive time-M: Minimum period of use-M: Maximum lifespan-W: Warning timePractice: Create a user Mandriva with an ID number of 2002, a base group of distro (group ID 3003), and an additional group of Linux #:groupadd-g 3003 distro#:groupadd Linux#:useradd-u 2002-g distro-g Linux Mandriva2. Create a user fedora with the full name of Fedora Community, the default shell is tcsh#:useradd-c "Fedora Community"-s/bin/tcsh Fedora3. Modify Mandriva with ID 4004, Basic Group Linux,

1.chmod (Rights Management) [[email protected] tem]# chmod-r 777/tem/a/b recursive change of permissions;Permission number method owner, root to change permissions;R----4W---2X---12.chown change the file or owner;[email protected] tem]# Touch Fengjie[Email protected] tem]# ls-l Fengjie-rw-r--r--. 1 root root 0 April 11:42 Fengjie[Email protected] tem]# Useradd Shenchao[Email protected] tem]#[Email protected] tem]# chown Shenchao Fengjie[Email protected] tem]# ls-l Fengjie-rw-r--r--. 1 shenchao R