Groovy shell command

groovy-execute-command.groovy

def command = "git --version"
def proc = command.execute()
proc.waitFor()              

println "Process exit code: ${proc.exitValue()}"
println "Std Err: ${proc.err.text}"
println "Std Out: ${proc.in.text}" 

with git working dir:

String command = "git log -1"
def proc = command.execute( null, new File("/path/to/folder") )
proc.waitFor()              

println """
  ${proc.err.text ?: ''}
  ${proc.in.text ?: ''}
  Process exit code: ${proc.exitValue()}
"""

or with system environment

List env = System.getenv().collect { k, v -> "${k}=${v}" }
String command = "git log -1"
def proc = command.execute( env, new File("/path/to/folder") )
proc.waitFor()