What is ss command in Linux?
ss command is a tool that is used for displaying network socket related information on a Linux system. The tool displays more detailed information that the netstat command which is used for displaying active socket connections.
What are wild cards in Unix?
Wildcards (also referred to as meta characters) are symbols or special characters that represent other characters. You can use them with any command such as ls command or rm command to list or remove files matching a given criteria, receptively.
What are wild cards explain?
A wildcard is a symbol that takes the place of an unknown character or set of characters. Commonly used wildcards are the asterisk ( * ) and the question mark ( ? ). Depending on the software or the search engine you are using, other wildcard characters may be defined.
What is SS command used for?
The ss command is a tool used to dump socket statistics and displays information in similar fashion (although simpler and faster) to netstat. The ss command can also display even more TCP and state information than most other tools.
How are wildcard characters used in PowerShell commands?
Wildcard characters represent one or many characters. You can use them to create word patterns in commands. Wildcard expressions are used with the -like operator or with any parameter that accepts wildcards. For example, to match all the files in the C:Techdocs directory with a.ppt file name extension, type:
When do you use a wildcard in SQL?
Overview of Wildcard in SQL A wildcard character in SQL does the job of replacing in a string zero to any number of characters. Usually, these wildcard characters can be found being used with the SQL operator LIKE. This is an operator that is commonly utilized in the WHERE clause of SQL to hunt for a particular arrangement of characters.
What do the wildcards mean in Linux command line?
If you specified something at the command line like “hd?” GNU/Linux would look for hda, hdb, hdc and every other letter/number between a-z, 0-9. this can represent any number of characters (including zero, in other words, zero or more characters).
Which is an example of a wildcard expression?
Wildcard expressions are used with the -like operator or with any parameter that accepts wildcards. For example, to match all the files in the C:\\Techdocs directory with a .ppt file name extension, type: In this case, the asterisk ( *) wildcard character represents any characters that appear before the .ppt file name extension.