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Grep regex NOT containing string
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grep matches, grep -v does the inverse. If you need to "match A but not B" you usually use pipes...
Can I query MongoDB ObjectId by date?
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How can I pass a constant value for 1 binding in multi-binding?
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If your value is simply a string, you can specify it as a constant in the Source property of a...
What does [:] mean?
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It is an example of slice notation, and what it does depends on the type of population. If po...
How to escape braces (curly brackets) in a format string in .NET
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How to get the nth occurrence in a string?
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Get number of digits with JavaScript
...d like to know how many digits var number has. For example: If number = 15; my function should return 2 . Currently, it looks like this:
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List All Redis Databases
...atabases is fixed, and set in the configuration file. By default, you have 16 databases. Each database is identified by a number (not a name).
You can use the following command to know the number of databases:
CONFIG GET databases
1) "databases"
2) "16"
You can use the following command to list ...
HMAC-SHA1 in bash
Is there a bash script to generate a HMAC-SHA1 hash?
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