exec:tldr:8a407
The command you provided is a shell command that makes use of variable expansion and the exec
command. Here's a breakdown of how it works:
-
${command -with -flags}
: This is variable expansion syntax in many shell languages (such as Bash). It means that the value of the variable namedcommand -with -flags
will be inserted at that position in the command. It is important to note that the variable name itself includes both the command and its associated flags, which is not typical but possible. -
exec
: This is a shell command that is often used to replace the current shell process with a new process. In this case, theexec
command is used to run the command specified by${command -with -flags}
.
To summarize, when the command is executed, the shell will expand the variable ${command -with -flags}
to its value, and then the exec
command will be applied to execute that value as a new process, replacing the current shell process. The purpose and functionality of the expanded command depend on the specific value of the variable.