simple-cmd
Simple String-based process commands
| LTS Haskell 15.7: | 0.2.1 |
| Stackage Nightly 2020-04-05: | 0.2.1 |
| Latest on Hackage: | 0.2.1 |
Maintained by [email protected]
Module documentation for 0.2.1
This version can be pinned in stack with:
[email protected]:002e0eea0dfe3df671c64096ccbcf11070fe7d0577c6141c9d7ed831a959961c,1465
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.
Changes
Used by 4 packages in lts-15.3(full list with versions):