Convert Row values Positive to Negative

 Text FIle

[adimulamvenkat19851609@cxln4 ~]$ cat two.txt
-32 45 65 -89 -100 65 -54 78 -56
56 85 -645 89 -56 -57 33 55
23 26
25 -56
123 654 -56 -56 89 -100 200
600 -77 -1000 59 -666

#with Command

[adimulamvenkat19851609@cxln4 ~]$ cat two.txt | awk 'NR==5 {$1*= -1; $2*= -1; $3*= -1;$4*= -1;$5*= -1;$6*= -1;$7*= -1;$8*= -1;$3*= -9;print}'

-123 -654 -504 56 -89 100 -200 0

=====================================================================

#With Bash Script

#!/bin/bash

echo "enter a filename to print from awk"
read fileName

echo "enter a row number for print"
read row_num

i=0
while read line; 
do
  i=$(( i + 1 ))
  case $i in $row_num) 
 echo "Before Convert"

  echo "$line" 

  

  echo "==========================="

  

echo "Before Convert"

echo "$line" | awk ' {$1*= -1; $2*= -1; $3*= -1;$4*= -1;$5*= -1;$6*= -1;$7*= -1;$8*= -1;$3*= -9;print} '

    
  break;; esac
done <"$fileName"

[adimulamvenkat19851609@cxln4 ~]$ sh hello.sh

enter a filename to print from awk

two.txt

enter a row number for print

5

Before Convert

123 654 -56 -56 89 -100 200

===========================

Before Convert

-123 -654 -504 56 -89 100 -200 0