simple-cmd
Simple String-based process commands
| Version on this page: | 0.2.3 |
| LTS Haskell 20.16: | 0.2.7 |
| Stackage Nightly 2023-03-31: | 0.2.7 |
| Latest on Hackage: | 0.2.7 |
Maintained by juhpetersen@gmail.com
This version can be pinned in stack with:
simple-cmd-0.2.3@sha256:6804d960da3a0c0e5feb28287f3111589c14b83c46d5ca15266bdfc304cad5b5,1519Module documentation for 0.2.3
Used by 5 packages in lts-18.28(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.