1. A method, comprising: receiving, by an administrator computer system, a plurality of input parameters including a first parameter specifying a plurality of target computer systems, a second parameter specifying a command to be executed against the plurality of target computer systems, and a third parameter specifying a total number of child processes that can be active at once for executing the command in parallel against a subset of the plurality of target computer systems; validating, by the administrator computer system, the plurality of input parameters by providing a ping to the plurality of target computer systems; subsequently to the validating, causing, by the administrator computer system, the command to be automatically executed in parallel against the subset of the plurality of target computer systems, the subset comprising each target of the plurality of target computer systems that replied to the ping; storing, by the administrator computer system, output information and first error information generated as a result of the command execution; and storing, by the administrator computer system, second error information generated as a result of the receiving, validating, and causing, the second error information being distinct from the first error information, wherein causing the command to be automatically executed in parallel against the subset of the plurality of target computer systems further comprises, for each target of the subset: determining whether a current number of active child processes meets or exceeds the total number of child processes that can be active at once; and if the current number does not meet or exceed the total number: forking a new child process for the target of the subset; and executing the command against the target of the subset in the context of the new child process.