scripts/_find_file_section_shortest.sh

   1 #set -x
   2 #read file sections - key word to key word
   3 #use -- param if -* pattern
   4 #sed -n '3,5p' file
   5 [ -z "$1" ] && exit 1
   6 setparam=1
   7 while true; do
   8 parm="$1"
   9 if [ "$parm" = "-P" ]; then
  10     [ -z "$grep_param" ] && grep_param="-P" || grep_param="$grep_param -P"
  11     shift
  12     continue
  13 else
  14     setparam=
  15 fi
  16 if [ "$parm" = "-I" ]; then
  17     [ -z "$grep_param" ] && grep_param="-i" || grep_param="$grep_param -i"
  18     shift
  19     continue
  20 else
  21     setparam=
  22 fi
  23 #use -- param if -* pattern
  24 if [ "$parm" = "--" ]; then
  25     shift
  26     break
  27 fi
  28 if [ -z "$setparam" ]; then
  29 if [ "$parm" != "$(echo "$parm" | sed 's%^-%%')" ]; then
  30     echo "$0: No such param"
  31     exit 1
  32 else
  33     break
  34 fi
  35 fi
  36 done
  37
  38 file="$1"
  39 [ ! -f "$file" ] && exit 1
  40
  41 grep1="$2"
  42 [ "$grep1" != "${grep1#-}" ] && grep1="\\$grep1"
  43
  44 grep2="$3"
  45 [ "$grep2" != "${grep2#-}" ] && grep2="\\$grep2"
  46
  47 set -- $grep_param
  48
  49 TMP1="$grep2"
  50 grep2="$grep1"
  51 grep1="$TMP1"
  52
  53 NUMS1=$(grep $@ -n "$grep1" "$file" | cut -d : -f 1)
  54 NUMS2=$(grep $@ -n "$grep2" "$file" | cut -d : -f 1)
  55
  56 for i in $NUMS1; do
  57     ENDNUMA=
  58     for j in $NUMS2; do
  59         if [ "$j" -lt "$i" ]; then
  60             OLD_NUM="$j"
  61             continue
  62         else
  63             ENDNUMA="$OLD_NUM"
  64             break
  65         fi
  66     done
  67     [ -z "$ENDNUMA" ] && ENDNUMA="$OLD_NUM"
  68     [ ! -z "$ENDNUMA" ] && sed -n "$ENDNUMA,${i}p" "$file"
  69 done