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@bknarendra

bknarendra/keyvaluedb.rb

Created December 26, 2012 10:15
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  1. bknarendra created this gist Dec 26, 2012.
    20 changes: 20 additions & 0 deletions keyvaluedb.rb
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,20 @@
    hash={"1"=>"Narendra", "2"=>"Mangesh", "3"=>"Viru", "4"=>"Virendra", "5"=>"Genh"}
    z=[]
    err_msg="ruby #{__FILE__} <GET/SET> <key_to_search/key_to_set> <not_required/value_to_set>"
    if ARGV.length<2 && (ARGV[0]!="GET" || ARGV[0]!="SET")
    puts err_msg
    exit
    end
    if ARGV[0]=="SET" && ARGV.length!=3
    puts err_msg
    exit
    end
    File.open(__FILE__,'r'){|f| f.each_line {|l| z<<l}}
    c=eval(z[0])
    if ARGV[0]=="GET"
    puts c[ARGV[1]] if c.include?(ARGV[1])
    elsif ARGV[0]=="SET"
    c[ARGV[1]]=ARGV[2]
    z[0]="hash="+c.inspect+"\n"
    File.open(__FILE__,'w'){|f| z.each{|x| f<<x}}
    end