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  1. #1

    bourne script help


    Hi, i was wondering if someone could help me figure out a script for global variables i'm trying to set for a group of command line arguments:

    basically i'm trying to set:

    if $# = 3

    then i want to search for each all string $1 $2 $3

    if $# = 4

    then i want to search for each all string $1 $2 $3 $4

    any ideas?

  2. #2
    Linux Engineer
    Join Date
    Jan 2005
    Location
    Saint Paul, MN
    Posts
    803
    Are you restricted to have it be "Borne Shell" or is "BASH" okay?

    What do you mean by search? Is it a grep searching for 3 or 4 patterns?

  3. #3
    Linux Engineer
    Join Date
    Jan 2005
    Location
    Saint Paul, MN
    Posts
    803
    For example if the need to grep a file for "patterns" in Bourne.
    Code:
    case $#; in
       3)    grep -E "$1|$2|$3" search_on_filename_or_list
       ;;
       4)    grep -E "$1|$2|$3|$4" search_on_filename_or_list
       ;;
    esac
    If Bash is okay:
    Code:
    grep -E "'$(IFS='|' && echo "$*")'" search_on_filename_or_list

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