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xauth:tldr:8a61e
This command is a Unix/Linux command used to merge X authority data from a specified file into the current X authority database.
Let's break down the command:
-
cat
: This is a command used to concatenate and display the contents of a file. In this case, it is used to read the contents of the${filename}
file. -
${filename}
: This is a variable that holds the name of the file to be read. The actual name should be substituted in place of${filename}
. -
|
: This symbol represents a pipe, which is used to connect the output of one command to the input of another. -
xauth merge -
: This is the second part of the command that receives the output fromcat
through the pipe.xauth
is a command used to manage X authority files, which control X server authentication. Themerge
argument is used to merge the content of the specified file into the current X authority database. The-
symbol indicates that the content will be received from the standard input.
So, overall, this command reads the content of a file specified by ${filename}
using cat
, then pipes it to xauth merge
command to merge the content into the X authority database.