Shell Programming and Scripting

var=10
filename=file
xargs -n $var < $filename | awk '{ max=0; for(i=1;i<=NF;i++) if ($i > max) max=$i; print max; }'

#!/bin/sh

read -p "Enter your filename: " filename
read -p "Enter count: " cnt

line_cnt=`cat $filename | wc -l`

loops=`echo $line_cnt / $cnt | bc`
loop_add=`echo $line_cnt % $cnt | bc`
[ $loop_add -gt 0 ] && loops=`expr $loops + 1` || loops=$loops

for (( i=1 ; i <= $loops ; i++ ))
do
        high_num=`tail -$line_cnt $filename | head -$cnt | sort -nr | head -1`
        line_cnt=`expr $line_cnt - $cnt`
        echo "count $i HIGHEST NO :- $high_num"
done

echo "total number of count = $cnt and total no of loops - $loops"

Enter file name
file3
Enter the number
4
count0
biggest no is 6
count1
biggest no is 100
count2
biggest no is 1000
count3
biggest no is 16
total count is 4

Enter file name
file3
Enter the number
4

count1
biggest no is 6
count2
biggest no is 100
count3
biggest no is 1000
count4
biggest no is 16

total count is 4

awk -v count=$n 'BEGIN{ i=0; } {k = $1; for (j=1; j<count; j++) {getline; if ( $1 > k ) k = $1; } print "count" ++i; print "biggest no is " k} END {print "total count is " i}' $file

-v count=$n

BEGIN{ i=0; }

{k = $1;

for (j=1; j<count; j++) {getline; if ( $1 > k ) k = $1; }

print "biggest no is " k}

END {print "total count is " i}

$file

260
10
10
250
100
1
1
1
1
2
1
3
4
5
8
2.7
44
4
3
4
4
5
5
7
100
10
03
25
200
160
300
6000

#!/bin/bash
echo "Enter file name"
read file
echo "Enter the number"
read n
awk -v count=$n 'BEGIN{ i=0; } {k = $1; for (j=1; j<count; j++) {getline; if ( $1 > k ) k = $1 } print "count" i; i++; print "biggest no is " k;} END {print "total count is " i}' $file > output

Enter file name
myfile
Enter the number
4

vi output
count0
biggest no is 260
count1
biggest no is 100
count2
biggest no is 3
count3
biggest no is 8
count4
biggest no is 44
count5
biggest no is 7
count6
biggest no is 100
count7
biggest no is 6000
total count is 8

Enter file name
myfile
Enter the number
4

vi output
count0
smallest no is 10
biggest no is 260
count1
smallest no is 1
biggest no is 100
count2
smallest no is 1
biggest no is 3
count3
smallest no is 2.7
biggest no is 8
count4
smallest no is 3
biggest no is 44
count5
smallest no is 4
biggest no is 7
count6
smallest no is 03
biggest no is 100
count7
smallest no is 160
biggest no is 6000
total count is 8

#!/bin/bash
echo "Enter file name"
read file
echo "Enter the number"
read n
awk -v count=$n 'BEGIN{ i=0; } {k = $1; m = $1; for (j=1; j<count; j++) {getline; if ( $1 > k ) k = $1; if ( $1 < m ) m = $1;} print "count" ++i; print "smallest is " m; print "biggest no is " k} END{print "total count is " i}' $file

6
3
2.3
5
0.3
2.6
100
21
2000
5
3
3
8
9
10
2000
12

Enter file name
data
Enter the number
4

count1
smallest is 2.3
biggest no is 6
count2
smallest is 0.3
biggest no is 100
count3
smallest is 3
biggest no is 2000
count4
smallest is 8
biggest no is 2000
count5
smallest is 
biggest no is 12
total count is 5

.
.
.
.
.
.
count5
only one number is left 12
total count is 5

Enter file name
data
Enter the number
5
count1
smallest is 0.3
biggest no is 6
count2
smallest is 2.6
biggest no is 2000
count3
smallest is 3
biggest no is 10
count4
smallest is 
biggest no is 2000
total count is 4

.
.
.
.
.
count4
smallest is 12
biggest no is 2000
total count is 4

1 2 3 4 5 6 
3 5 6 
7 9 3 2 4 4 6 6 
.......
.......
.....

1 2 3 4 5 6 average=3.5
3 5 6 average=4.6666
7 9 3 2 4 4 6 6 average=5.125