functions

## pssh: http://code.google.com/p/parallel-ssh/
## i=interactive
function psshi() {
	local -a psshopts=( -p 10 -t 0 -X "-q" -X "-T" -O LogLevel=INFO )
	local psshdir="${HOME}/.pssh"
	local hostfile="${psshdir}/hostgroups/${1}"; shift
	[[ ! -d "${psshdir}" ]] && return 2
	[[ ! -f "${hostfile}" || ! -s "${hostfile}" ]] && return 2
	[[ -z "${@}" ]] && return 2
	pssh "${psshopts[@]}" -h "${hostfile}" -i "${@}"
}

## c=capture
function psshc() {
	local -a psshopts=( -p 10 -t 0 -X "-q" -X "-T" -O LogLevel=INFO )
	local psshdir="${HOME}/.pssh"
	local workdir="${psshdir}/work/${$}.${RANDOM}"
	local outdir="${workdir}/out"
	local errdir="${workdir}/err"
	local hostfile="${psshdir}/hostgroups/${1}"; shift
	[[ ! -d "${psshdir}" ]] && return 2
	[[ ! -d "${workdir}" ]] && mkdir -pv "${workdir}" || return 2
	[[ ! -d "${outdir}" ]] && mkdir -pv "${outdir}" || return 2
	[[ ! -d "${errdir}" ]] && mkdir -pv "${errdir}" || return 2
	[[ ! -f "${hostfile}" || ! -s "${hostfile}" ]] && return 2
	[[ -z "${@}" ]] && return 2
	pssh "${psshopts[@]}" -h "${hostfile}" -o "${outdir}" -e "${errdir}" "${@}"
	pushd "${workdir}" &>/dev/null && (bash; true) && popd &>/dev/null 
	rm -rfv "${workdir}"
}