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eval_cmd

Source: R/eval_cmd.R
eval_cmd.Rd

eval_cmd

Usage

eval_cmd(cmd, out_paths, overwrite = FALSE, print = FALSE)

Arguments

cmd

string expression to evaluate

out_paths

vector or list of output paths

overwrite

flag to overwrite output paths (default: FALSE)

print

flag to print command only (default: FALSE)

Value

Invisibly returns NULL; evaluates cmd for its side effects.

See also

Other path helpers: check_in_paths(), check_out_paths(), mkdir_if_dne(), safe_to_write(), stop_if_dne(), stop_if_e()

Examples

out_path <- file.path(tempdir(), "eval-cmd-example.txt")
eval_cmd(
  "writeLines('hello', out_path)",
  out_paths = out_path,
  overwrite = TRUE
)
#> 
#> [CMD]	writeLines('hello', out_path)
#> Error in eval(parse(text = cmd), envir = .GlobalEnv): object 'out_path' not found