Shell Programming and Scripting

16361.62 , 4785.75 , 458.00 , 765.00 ,011018, 110.50 , 200.00- , 59, 25 , 443041
.72 , 222032.98 , 46325.27 , 47363.74 , 101643.13 , 776121.82, 11686.72 , 3082.1
2
110896.62 , 24052.37 , 2955.50 , 2032.50 ,10,01,18, 1185.50 , 105.50-, 76461.75
, 14153.18 , 364, 153
68187.16 , 22005.05 , 6767.50 , 1607.00 ,09,01,18, 881.00-, , 46872.51 , 14042.4
4 , 274, 113
110896.62 , 24052.37 , 2955.50 , 2032.50 ,10,01,18, 1185.50 , 105.50-, 76461.75
, 14153.18 , 364, 153

awk -F" , " '{for(i=1;i<=NF;i++){if($i~/-/){sub(/-/,"",$i);$i="-"$i}}} 1' OFS=" , "   Input_file

16361.62 , 4785.75 , 458.00 , 765.00 ,011018, 110.50 , -200.00 , 59, 25 , 443041
.72 , 222032.98 , 46325.27 , 47363.74 , 101643.13 , 776121.82, 11686.72 , 3082.1
2
110896.62 , 24052.37 , 2955.50 , 2032.50 ,10,01,18, 1185.50 , -105.50, 76461.75
, 14153.18 , 364, 153
68187.16 , 22005.05 , 6767.50 , -1607.00 ,09,01,18, 881.00, , 46872.51 , 14042.4
4 , 274, 113
110896.62 , 24052.37 , 2955.50 , 2032.50 ,10,01,18, 1185.50 , -105.50, 76461.75
, 14153.18 , 364, 153

awk -F" , " '                ##-F means to set field delimiter as " , " space comma space for each line.
{
  for(i=1;i<=NF;i++){        ##Starting a for loop which starts from i=1 to till value of NF whose value will be number of fields and do following.
   if($i~/-/){               ##Checking condition here if value of a field is having -(dash) in it then do following.
     sub(/-/,"",$i);$i="-"$i}##Using sub of awk which will substitute dash with NULL in that specific field AND then adding dash before value of current field.
}}
1                            ##1 will print the current line either edited or non-edited one.
' OFS=" , " Input_file       ##Setting OFS as space comma space here and mentioning Input_file name here too.

awk '{
   c=split($0,a, " *,* *");
   for (i=1;i<=c;i++) if(a[i] ~ /-/) {w=a[i]; sub(/-/,"",a[i]); a[i]="-"a[i]; sub(w, a[i])}
} 1' Input_file > Output_file