Remember a pit caused by too intelligent production tools
Background Recently, I am making a CLI tool for Proto file processing. Before using Proto file, it is generally divided into two ways: Directly referencing...
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Category: shell
The difference between the three quotation marks in the shell
December 14, 2023
by Tara Ramirez
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There are single, double, and back quotes in the shell, and each of them is used differently. } Single-quoted strings: Any character in a single...
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xxxxx.sh line 13: if[ == N]: command not found
December 14, 2023
by Fiona Lewis
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Sh line 13: if[== N]: If Else Command not found If Else Command not found If Else Command not found If Else Command not found...
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Commands are common in shell scripts
December 14, 2023
by Debra Macias
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We need to learn to use tools to free hands, such as batch to folder some files to create soft links, we can write a...
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Shell script snippets
December 14, 2023
by Stuart Cresswell
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1, traverse the date within the given time range {code... }
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Liunx shell script learning collation
December 14, 2023
by 金淑芬
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Shell script is a program written in C language. When a shell program is executed, the logic code of C language will be executed at...
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Mysql > backup from MySQL
December 14, 2023
by 謝飛
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This document describes how to install and use the MySQL backup tool. 2.1 Function: Backup MySQL database every day. Mysql > mysqlbak.sh = mysqlbak.sh =...
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Shell cheat
December 14, 2023
by Kelly Hansen
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1: Ctrl + A: Move to First of Command Line Ctrl + E: Move to End of Command Line Ctrl + U: Remove from Cursor...
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SH256SUM, XXD, BASE64 combine to compute the hash of the file
December 14, 2023
by Kaitlyn Bowden-Larsen
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Calculate file hash values and base64 encode {code... }
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Bash: String
December 14, 2023
by Abigail Baker
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One exception is \newline (backslash + newline), which is treated as a long string newline and is printed with \newline (backslash + newline) removed and...
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Bash: for loop with position parameter ($*, $@)
December 14, 2023
by Bailey McNabb
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The shell uses each character of $IFS as a delimiter. If $IFS is unset, there is a default value of <; space> < tab> <...
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The HDFS command thing
December 14, 2023
by 李詩婷
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Background Time: Feb 26, 2021 13:58:26 Brief Step: Determine what the command is? What is the location of the command? What is the main class...
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The bash: set command
December 14, 2023
by 呂怡安
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View help {code... } View the set Flag {code... } set Flag {code... } unset Flag {code... } View Flag {code set with -o... }...
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Bash: exec-c and ENV_SUPATH
December 14, 2023
by Miss Anne Moore
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Test2 has the same process ID and parent ID as Test3, whose environment variable (export-p) can be considered empty (PWD is the current directory name,...
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Bash: test-commands in if, until, and while
December 13, 2023
by 唐惠雯
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Exit Status The status returned when the last command has finished executing. 0 means success; A non-zero indicates failure. On the command line you can...
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