Excuse me./What do you mean under Linux?
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/indicates the current directory, if not added/, need to use environment variables or absolute path to know the user is currently executing which path of the script
./install.sh executing the install.sh script under the current directory
. The current directory is represented here, just like the. Represents the parent directory.
This/represents a directory-level delimiter, which is the name of the directory before him./aaa/shows. (that is, the current directory) under the AAA directory. Of course this AAA behind/can be omitted, just like./Is not required in the current directory.
The corresponding./BBB represents the BBB file under the current directory, but it can also represent the BBB directory, except that the BBB is a file or a directory, so the directory is usually appended/to indicate. Especially given the. This symbol is too often used, it can easily cause confusion, so everyone uses./represents the current directory. The same xxxx/indicates the XXXX directory.
Excuse me./What do you mean under Linux?