functions.findPid.sh Maven / Gradle / Ivy

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creates scripts that can be used to manage services

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#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
function findPid {
   unset FOUND_PID;
   [ $# -eq 1 ] || {
      abort "findPid requires a parameter of pattern to match"
      return 1
   }
   local PATTERN="$1"; shift
   local _FOUND=`ps auxwww|grep "$PATTERN"|grep -v " $0"|grep -v grep|grep -v $$|awk '{print $2}'`
   [ -n "$_FOUND" ] && {
      export FOUND_PID=$_FOUND
      return 0
   } || {
      return 1
   }
}