simple-cmd
Simple String-based process commands
| Version on this page: | 0.2.0 |
| LTS Haskell 23.21: | 0.2.7 |
| Stackage Nightly 2025-05-08: | 0.2.7 |
| Latest on Hackage: | 0.2.7 |
Maintained by [email protected]
This version can be pinned in stack with:
simple-cmd-0.2.0@sha256:7991a328c058bfe5750fe5d6f9f3480da84dae63096b5753bd9ff4460f386d39,1362Module documentation for 0.2.0
Used by 3 packages in nightly-2019-06-04(full list with versions):
simple-cmd
Some simple String wrappers of readProcess, readProcessWithExitCode,
rawSystem from the Haskell process library.
Usage
import SimpleCmd
cmd_ :: String -> [String] -> IO ()
outputs to stdout. For example
cmd_ "echo" ["Hello"]
cmd_ "git" ["clone", url]
This can shortened to git_ "clone" [url].
cmd :: String -> [String] -> IO String
returns stdout as a String. eg
date <- cmd "date" []
There are also cmdBool, cmdMaybe, cmdList, shell, and others.
Simple pipes are also supported:
pipe_ ("echo",["hello"]) ("grep",["ello"])
Other examples:
gitBranch :: IO String
grep_ pat file :: IO Bool
sudo_ c args :: IO ()
See the library documentation for more details.