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3 bytes removed ,  14:13, 2 July 2015
Line 123: Line 123:  
   != : not equal
 
   != : not equal
 
   =~ : regular expression match for strings only
 
   =~ : regular expression match for strings only
   ~~ : not of =~.  Is equivalent to is PERL's !~, this notation is used as BASH keeps interpreting ! for recalling commands from the history
+
   ~~ : not of =~.  Is equivalent to PERL's !~, this notation is used as BASH keeps interpreting ! for recalling commands from the history
 
   ~  : logical not
 
   ~  : logical not
 
   && : logical and
 
   && : logical and
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