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==== Grep options ====

Zie ook **sort** options :

 [pvi@bl08204 ~]$ **sort vs00153-outside.csv | uniq -c | sort -nr**
    182 73.149.77.1;dmz;151.236.132.36;443
    181 75.186.76.212;dmz;151.236.132.36;443
    181 72.193.181.10;dmz;151.236.132.36;443

**zgrep**

  zgrep  193.172.213. ./fws*.gz | grep -v -f /home/pvi/exclude_ip_dns-pub.txt | grep permitted

==OR==
1. Grep OR Using \|
   grep 'pattern1\|pattern2' filename
2. Grep OR Using -E
   grep -E 'pattern1|pattern2' filename
3. Grep OR Using egrep
   egrep 'pattern1|pattern2' filename
4. Grep OR Using grep -e
   grep -e pattern1 -e pattern2 filename

==AND==
5. Grep AND using -E ‘pattern1.*pattern2′\\

There is no AND operator in grep. But, you can simulate AND using grep -E option.
   grep -E 'pattern1.*pattern2|pattern2.*pattern1' filename
6. Grep AND using Multiple grep command
   grep -E 'pattern1' filename | grep -E 'pattern2'

==NOT==
7. Grep NOT using grep -v
   grep -v 'pattern1' filename
8. Grep but NOT
   egrep 'Manager|Developer' employee.txt | grep -v Sales
   


==Exacte woord match en woord count==
  grep -o -w [Vv]ader ./liefdesbrief.txt | wc -w
  
==Show only filenames (-l) containing pattern and exclude directory from recursive (-R --exclude-dir=) search ==
   grep -l -R --exclude-dir=./httpdocs/wp-content/uploads/quarantine 'ynbhxxvtmh' ./

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