Function to check if third-party software or utility is installed and set in the PATH.
tryCMD(command, silent = FALSE)
a character vector containing the command line name to be tested.
If set to
It will return a positive message if the software is set on the PATH or an error message if the software is not set it.
Please note that not necessary the software is not installed if the message indicates an error, but it has not been exported on the current PATH.
## Not run: tryCMD(command="R") tryCMD(command="blastp") tryCMD(command="hisat2") ## End(Not run)
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