iankelling.org Git - small-misc-bash/blob - psg-function

   1 #!/bin/bash
   2 # Copyright (C) 2016 Ian Kelling
   3
   4 # Licensed under the Apache License, Version 2.0 (the "License");
   5 # you may not use this file except in compliance with the License.
   6 # You may obtain a copy of the License at
   7
   8 #     http://www.apache.org/licenses/LICENSE-2.0
   9
  10 # Unless required by applicable law or agreed to in writing, software
  11 # distributed under the License is distributed on an "AS IS" BASIS,
  12 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13 # See the License for the specific language governing permissions and
  14 # limitations under the License.
  15
  16 psg () {
  17     local x y help
  18     help="Usage: psg [--help] GREP_ARGS
  19 grep ps and output in a nice format"
  20     if [[ $1 == --help ]]; then
  21         echo "$help"
  22         return
  23     fi
  24     x=$(sudo ps -eF)
  25     # final grep is because some commands tend to have a lot of trailing spaces
  26     y=$(echo "$x" | grep -P "$@" | grep -o '.*[^ ]')
  27     if [[ $y ]]; then
  28         echo "$x" | head -n 1
  29         echo "$y"
  30     fi
  31 }