curl https://www.lipsum.com/feed/json | jq -r '.feed.lipsum' > dummy.txt

Gist

awk -f myscript.awk inputfile.txt

cat /etc/ssh/sshd_config | awk '/Port/'

awk '/Port/' /etc/ssh/sshd_config

awk '1;{print ""}' dummy.txt
awk 'BEGIN{ORS="\n\n"};1' dummy.txt

awk '1;{print ""}' dummy.txt

awk '{print FNR "\t" $0}' dummy.txt*

awk '{print FNR "\t" $0}' dummy.txt*

awk '{printf("%5d : %s\n", NR,$0)}' dummy.txt

awk 'NF{$0=++a " :" $0};{print}' dummy.txt
awk '{print (NF? ++a " :" :"") $0}' dummy.txt

awk 'END{print NR}' dummy.txt

| Days | SSH Users | Offline | Idle Users | FTP Users
| Sat  | 231        | 53       | 12           | 435       
| Sun  | 874        | 13       | 849          | 56        
| Mon  | 837        | 339      | 4434         | 90        

دانلود این فایل

awk '{s=0; for (i=1; i<=NF; i++) s=s+$i; print s}' stats.txt

awk '{for (i=1; i<=NF; i++) s=s+$i}; END{print s}' stats.txt

awk '{for (i=1; i<=NF; i++) if ($i < 0) $i = -$i; print }'
awk '{for (i=1; i<=NF; i++) $i = ($i < 0) ? -$i : $i; print }'

awk '{ total = total + NF }; END {print total}' dummy.txt

awk '/Lorem/{n++}; END {print n+0}' dummy.txt

awk '{ print NF ":" $0 } ' dummy.txt

awk '{ print $NF }' dummy.txt

awk '{ field = $NF }; END{ print field }' dummy.txt

awk '{ print $1 }' dummy.txt

awk '{ print $4 }' dummy.txt

awk 'NF > 4' dummy.txt

awk '{sub(/^[ \t]+/, ""); print}' dummy.txt 

awk '{sub(/[ \t]+$/, "");print}'

awk '{gsub(/^[ \t]+|[ \t]+$/,"");print}' dummy.txt

awk '{$1=$1;print}' dummy.txt

awk '{sub(/^/, "     ");print}' dummy.txt

awk '{printf "%79s\n", $0}' dummy.txt*

awk '{l=length();s=int((79-l)/2); printf "%"(s+l)"s\n",$0}' dummy.txt*

awk '{sub(/Lorem/,"foo");print}' dummy.txt

awk '{sub(/Lorem/,"foo");print}' dummy.txt | grep --color=always foo

awk '/Lorem/{gsub(/ipsum/, "foo")};{print}' dummy.txt

awk '!/Lorem/{gsub(/sit/, "foo")};{print}' dummy.txt

awk '{gsub(/Lorem|ipsum|dolor/, "foo"); print}' dummy.txt

awk '{a[i++]=$0} END {for (j=i-1; j>=0;) print a[j--] }' dummy.txt*

awk '/\\$/ {sub(/\\$/,""); getline t; print $0 t; next}; 1' dummy.txt*

awk -F ":" '{ print $1 | "sort" }' /etc/passwd

awk '{print $2, $1}' dummy.txt

awk '{temp = $1; $1 = $2; $2 = temp}' dummy.txt

awk '{ $2 = ""; print }' dummy.txt

awk '{for (i=NF; i>0; i--) printf("%s ",i);printf ("\n")}' dummy.txt

awk 'a !~ $0; {a=$0}'

awk '! a[$0]++'                
awk '!($0 in a) {a[$0];print}'      

awk 'NR < 11'

awk 'NR>1{exit};1'

awk '{y=x "\n" $0; x=$0};END{print y}' dummy.txt

awk 'END{print}' dummy.txt

awk '/Lorem/' dummy.txt

awk '!/Lorem/' dummy.txt

awk '/Lorem/{print x};{x=$0}' dummy.txt
awk '/Lorem/{print (x=="" ? "تطابق در خط 1" : x)};{x=$0}'  dummy.txt

awk '/Lorem/{getline;print}' dummy.txt

awk '/AAA/; /BBB/; /CCC/' dummy.txt

awk '/AAA.*BBB.*CCC/' dummy.txt

awk 'length > 64' dummy.txt

awk 'length < 64' dummy.txt

awk '/Lorem/,0' dummy.txt
awk '/Lorem/,EOF' dummy.txt

awk 'NR==8,NR==12' dummy.txt

awk 'NR==52' dummy.txt
awk 'NR==52 {print;exit}' dummy.txt
   
در فایل‌های بزرگ بهتر عمل می‌کند

awk '/Iowa/,/Montana/' dummy.txt         
    حساس به حروف کوچک و بزرگ است

awk NF dummy.txt
awk '/./' dummy.txt

• Sources:
  • awk One-Liners By Eric Pement
  • sed & awk, 2nd Edition, by Dale Dougherty and Arnold Robbins O'Reilly, 1997
  • UNIX Text Processing, by Dale Dougherty and Tim O'Reilly Hayden Books, 1987
  • Effective awk Programming, 3rd Edition. by Arnold Robbins O'Reilly, 2001

Contact me