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coproc:tldr:512d8
The command you provided is using the coproc command in Bash to create a co-process. A co-process is a special type of background process that allows for bidirectional communication between the co-process and the main script or shell.
Here's a breakdown of the command structure:
-
{}
: Enclosing the commands in curly braces{}
creates a block of code, which allows multiple commands to be treated as a single entity. -
${command1; command2; ---}
: This syntax executes multiple commands within the block. You can replacecommand1
,command2
,---
with actual shell commands you want to perform.For example, if you have three commands you want to execute in order:
command1
,command2
,command3
, you would write${command1; command2; command3;}
in the block. -
coproc
: Thecoproc
command creates a co-process that will execute the code block defined by the curly braces{}
.
Putting it all together, the command will create a co-process and execute the commands inside the curly braces as a single entity. The co-process will allow bidirectional communication with the main script or shell, so it can send and receive data.