AWK command Flashcards
(12 cards)
$cat > employee.txt ajay manager account 45000 sunil clerk account 25000 varun manager sales 50000 amit manager account 47000 tarun peon sales 15000 deepak clerk sales 23000 sunil peon sales 13000 satvik director purchase 80000
$ awk ‘{print}’ employee.txt
ajay manager account 45000 sunil clerk account 25000 varun manager sales 50000 amit manager account 47000 tarun peon sales 15000 deepak clerk sales 23000 sunil peon sales 13000 satvik director purchase 80000
$cat > employee.txt ajay manager account 45000 sunil clerk account 25000 varun manager sales 50000 amit manager account 47000 tarun peon sales 15000 deepak clerk sales 23000 sunil peon sales 13000 satvik director purchase 80000
$ awk ‘/manager/ {print}’ employee.txt
ajay manager account 45000
varun manager sales 50000
amit manager account 47000
$cat > employee.txt ajay manager account 45000 sunil clerk account 25000 varun manager sales 50000 amit manager account 47000 tarun peon sales 15000 deepak clerk sales 23000 sunil peon sales 13000 satvik director purchase 80000
$ awk ‘{print $1,$4}’ employee.txt
ajay 45000 sunil 25000 varun 50000 amit 47000 tarun 15000 deepak 23000 sunil 13000 satvik 80000
$cat > employee.txt ajay manager account 45000 sunil clerk account 25000 varun manager sales 50000 amit manager account 47000 tarun peon sales 15000 deepak clerk sales 23000 sunil peon sales 13000 satvik director purchase 80000
$ awk ‘{print NR,$0}’ employee.txt
1 ajay manager account 45000 2 sunil clerk account 25000 3 varun manager sales 50000 4 amit manager account 47000 5 tarun peon sales 15000 6 deepak clerk sales 23000 7 sunil peon sales 13000 8 satvik director purchase 80000
$cat > employee.txt ajay manager account 45000 sunil clerk account 25000 varun manager sales 50000 amit manager account 47000 tarun peon sales 15000 deepak clerk sales 23000 sunil peon sales 13000 satvik director purchase 80000
$ awk ‘{print $1,$NF}’ employee.txt
ajay 45000 sunil 25000 varun 50000 amit 47000 tarun 15000 deepak 23000 sunil 13000 satvik 80000
$cat > employee.txt ajay manager account 45000 sunil clerk account 25000 varun manager sales 50000 amit manager account 47000 tarun peon sales 15000 deepak clerk sales 23000 sunil peon sales 13000 satvik director purchase 80000
$ awk ‘NR==3, NR==6 {print NR,$0}’ employee.txt
3 varun manager sales 50000
4 amit manager account 47000
5 tarun peon sales 15000
6 deepak clerk sales 23000
$cat > geeksforgeeks.txt
A B C
Tarun A12 1
Man B6 2
Praveen M42 3
$ awk ‘{print NR “- “ $1 }’ geeksforgeeks.txt
1 - A
2 - Tarun
3 – Manav
4 - Praveen
$cat > geeksforgeeks.txt
A B C
Tarun A12 1
Man B6 2
Praveen M42 3
$ awk ‘{print $2}’ geeksforgeeks.txt
B
A12
B6
M42
$cat > geeksforgeeks.txt
A B C
Tarun A12 1
Man B6 2
Praveen M42 3
$ awk ‘{ if (length($0) > max) max = length($0) } END { print max }’ geeksforgeeks.txt
13
$cat > geeksforgeeks.txt
A B C
Tarun A12 1
Man B6 2
Praveen M42 3
$ awk ‘length($0) > 10’ geeksforgeeks.txt
Tarun A12 1
Praveen M42 3
$cat > geeksforgeeks.txt
A B C
Tarun A12 1
Man B6 2
Praveen M42 3
$ awk ‘{ if($3 == “B6”) print $0;}’ geeksforgeeks.txt
BLANK (No Output)
$ awk ‘BEGIN { for(i=1;i<=6;i++) print “square of”, i, “is”,i*i; }’
square of 1 is 1 square of 2 is 4 square of 3 is 9 square of 4 is 16 square of 5 is 25 square of 6 is 36
