cmdtemp

   1 #!/usr/bin/env bash
   2 # The MIT License (MIT)
   3 #
   4 # Copyright (c) 2011-2015 Ismaël Bouya http://www.normalesup.org/~bouya/
   5 #
   6 # Permission is hereby granted, free of charge, to any person obtaining a copy
   7 # of this software and associated documentation files (the "Software"), to deal
   8 # in the Software without restriction, including without limitation the rights
   9 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10 # copies of the Software, and to permit persons to whom the Software is
  11 # furnished to do so, subject to the following conditions:
  12 #
  13 # The above copyright notice and this permission notice shall be included in
  14 # all copies or substantial portions of the Software.
  15 #
  16 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  19 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22 # THE SOFTWARE.
  23
  24 # cmdtemp
  25 #   List commands
  26 # cmdtemp <n>
  27 #   Execute command number <n>
  28 # cmdtemp <-n>
  29 #   Delete command number <n>
  30 # cmdtemp <...>
  31 #   Save command
  32
  33
  34 function is_negative() {
  35     s=$(echo $1 | tr -d 0-9)
  36     if [ "$s" == "-" ]; then
  37         return 0
  38     else
  39         return 1
  40     fi
  41 }
  42
  43 function is_integer() {
  44     s=$(echo $1 | tr -d 0-9)
  45     if [ -z "$s" ]; then
  46         return 0
  47     else
  48         return 1
  49     fi
  50 }
  51
  52 if [ $# -eq 0 ]; then
  53    cat -n $HOME/.cmdtemp
  54    exit
  55 fi
  56
  57 if is_integer "$1"; then
  58    ligne="$1"
  59    shift
  60    commande=`awk "FNR == $ligne" $HOME/.cmdtemp`
  61    echo "*** "$commande
  62    eval $commande
  63 elif is_negative "$1"; then
  64     s=$(echo $1 | tr -d '-')
  65     sed -i -e $s"d" $HOME/.cmdtemp
  66 else
  67     echo "$*" >> $HOME/.cmdtemp
  68 fi