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coproc:tldr:938c8
The given command is using a bash feature called "coprocess".
The syntax coproc ${name} { ... }
creates a coprocess with the given name. A coprocess is a way to execute a command or a block of code in parallel with the script. In this case, ${name}
is the name of the coprocess.
Inside the block { ... }
, there is a while loop that reads input line by line. Each line is stored in the variable line
.
Within the loop, there is another block of code denoted by ${command1; command2; ---}
. This block represents a series of commands that are being executed for each input line. You would replace command1
, command2
, etc., with the actual commands you want to run.
So, this command sets up a coprocess named ${name}
that continuously reads input from a source and executes a series of commands for each line of input.