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
  25 # Feel like tipping/donating? https://www.immae.eu/licenses_and_tipping
  26
  27 # cmdtemp
  28 #   List commands
  29 # cmdtemp <n>
  30 #   Execute command number <n>
  31 # cmdtemp <-n>
  32 #   Delete command number <n>
  33 # cmdtemp <...>
  34 #   Save command
  35
  36
  37 function is_negative() {
  38     s=$(echo $1 | tr -d 0-9)
  39     if [ "$s" == "-" ]; then
  40         return 0
  41     else
  42         return 1
  43     fi
  44 }
  45
  46 function is_integer() {
  47     s=$(echo $1 | tr -d 0-9)
  48     if [ -z "$s" ]; then
  49         return 0
  50     else
  51         return 1
  52     fi
  53 }
  54
  55 if [ $# -eq 0 ]; then
  56    cat -n $HOME/.cmdtemp
  57    exit
  58 fi
  59
  60 if is_integer "$1"; then
  61    ligne="$1"
  62    shift
  63    commande=`awk "FNR == $ligne" $HOME/.cmdtemp`
  64    echo "*** "$commande
  65    eval $commande
  66 elif is_negative "$1"; then
  67     s=$(echo $1 | tr -d '-')
  68     sed -i -e $s"d" $HOME/.cmdtemp
  69 else
  70     echo "$*" >> $HOME/.cmdtemp
  71 fi