os.Darwin

   1 # usage: touch_date <unix ts> <file>
   2 touch_date()
   3 {
   4         touch -t `date -r $1 +%Y%m%d%H%M.%S` "$2"
   5 }
   6
   7 # usage: last_modified <file>
   8 last_modified()
   9 {
  10         stat -f "%m" "$1"
  11 }
  12
  13 # usage: format_last_modified <file>
  14 format_last_modified()
  15 {
  16         stat -f "%Sm" -t "%Y-%m-%d %H:%M:%S %z" "$1"
  17 }
  18
  19 # usage: head_n [count]
  20 head_n()
  21 {
  22         if [ "$1" -gt 0 ]; then
  23                 head -n "$1"
  24         fi
  25 }
  26
  27 # usage: sha1 [file]
  28 sha1()
  29 {
  30         if [ $# = 1 ]
  31         then
  32                 openssl dgst -sha1 "$1" | sed "s,SHA1.\(.*\).= \(.*\),\2  \1,"
  33         else
  34                 openssl dgst -sha1 | sed 's,\(.*= \)*\(.*\),\2  -,'
  35         fi
  36 }
  37
  38 # usage: cp_a <src> <dst>
  39 cp_a()
  40 {
  41         cp -pR "$1" "$2"
  42 }
  43
  44 # usage: _tac
  45 _tac()
  46 {
  47         sed -e '1!G;h;$!d'
  48 }
  49
  50 _seq()
  51 {
  52         (
  53                 if [ $# -eq 1 ]
  54                 then
  55                         /usr/bin/jot $1
  56                 elif [ $# -eq 2 ]
  57                 then
  58                         n1=$((${2} - ${1} + 1))
  59                         n2=$1
  60                         /usr/bin/jot $n1 $n2
  61                 elif [ $# -eq 3 ]
  62                 then
  63                         num1=$1
  64                         incr=$2
  65                         num2=$3
  66                         /usr/bin/awk -v n1=$num1 -v n2=$num2 -v add=$incr 'BEGIN{ for(i=n1; i<=n2; i+=add) print i;}' | /usr/bin/sed -E '/e/s/^.+e.+$/0/'
  67                 fi
  68         )
  69         return 0
  70 }