From: dan@djph.net   
      
   On 2025-03-13, Adam wrote:   
   > On 03/13/2025 12:16 PM, Paul wrote:   
   >> On Thu, 3/13/2025 2:17 PM, Adam wrote:   
   >>>   
   >>> The following ...   
   >>>   
   >>> grep -e pattern1 -e pattern2 wget_output_file.txt   
   >>>   
   >>> is NOT giving the result that I'm looking for, which is BOTH   
   >>> patterns must be in the file.   
   >>   
   >> "The egrep variant supports an extended regular expression syntax   
   >> added by Alfred Aho after Ken Thompson's original regular expression   
   >> implementation.[12]   
   >>   
   >>   The "fgrep" variant searches for any of a list of fixed strings   
   >>   using the Aho–Corasick string matching algorithm."   
   >>   
   >> *******   
   >>   
   >> sample.txt   
   >> ----------   
   >> I am a cat   
   >> I am a dog   
   >> I am a cat or a dog   
   >> I am an elephant   
   >>   
   >> (stdout)   
   >>   
   >> $ egrep "cat|dog" sample.txt   
   >> I am a cat   
   >> I am a dog   
   >> I am a cat or a dog   
   >>   
   >> "If at first you don't grep, try try again... with a egrep or a fgrep" :-)   
   >>   
   >> It's a good thing these are documented.   
   >>   
   >>      Paul   
   >>   
   >   
   > I'm looking for AND (not OR) operator. So, both patterns must be in the   
   > file (not line) or FALSE is returned.   
   >   
      
   So you'll need something like this, or a different language.   
      
     if grep -q PATTERN1 theFile; then   
       if grep -q PATTERN2 theFile; then   
         printf "Both patterns contained in file.\n"   
       else   
         printf "Pattern2 missing from file.\n"   
       fi   
     else   
       printf "Pattern1 missing from file.\n"   
     fi   
      
      
   could probably be cleaned up a bit, but it'll do what you want.   
      
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