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# 1  
Old 01-22-2018
awk and sum
This is my file

Code:
vol0 285GB
vol0.snapshot 15GB
vol11_root 0GB
vol12_root 47GB
vol12_root.snapshot 2GB

I need the output

Code:
vol0 285GB,vol0.snapshot 15GB,sum-300GB
vol11_root 0GB,nosnap,sum-0Gb
vol12_root 47GB,vol12_root.snapshot 2GB,49GB

I was trying to use paste -d, --. But i having issue i need take only the line which has .snapshot and if no shapshot found i need to add has nosnap

For adding the value of two data and provide has SUM no idea how to do
# 2  
Old 01-22-2018
Quote:
Originally Posted by ranjancom2000
This is my file

Code:
vol0 285GB
vol0.snapshot 15GB
vol11_root 0GB
vol12_root 47GB
vol12_root.snapshot 2GB

I need the output

Code:
vol0 285GB,vol0.snapshot 15GB,sum-300GB
vol11_root 0GB,nosnap,sum-0Gb
vol12_root 47GB,vol12_root.snapshot 2GB,49GB

I was trying to use paste -d, --. But i having issue i need take only the line which has .snapshot and if no shapshot found i need to add has nosnap

For adding the value of two data and provide has SUM no idea how to do
What operating system are you using?

What shell are you using?

What did you try with paste?

How are we supposed to guess when the sum is to be printed with "GB" and when it is to be printed with "Gb"?

How are supposed to guess when "sum-" is to be included in the output and when it is to be omitted?

Are all numbers to be added given as "GB" values? Or could "KB", "MB", "TB" and/or other multipliers be present?
# 3  
Old 01-22-2018
What operating system are you using?
I am using cywin

What shell are you using?

shell

What did you try with paste?

cat file|paste -d, - - (I used this command to append both lines but the issue some lines dont have snapshot details)

How are we supposed to guess when the sum is to be printed with "GB" and when it is to be printed with "Gb"?
All will in GB

How are supposed to guess when "sum-" is to be included in the output and when it is to be omitted?

One i get the two date
"vol0 285GB,vol0.snapshot 15GB" using awk to sum the integer

Are all numbers to be added given as "GB" values? Or could "KB", "MB", "TB" and/or other multipliers be present?[/QUOTE]
# 4  
Old 01-22-2018
Here is one approach:-
Code:
awk '
        {
                match ( $0, /vol[0-9]*/ )
                vol = sprintf ( "%s", substr( $0, RSTART, RLENGTH ) )
        }
        !/snapshot/ {
                A[vol FS "orig"] = $0
                T[vol] += ( $NF + 0 )
        }
        /snapshot/ {
                A[vol FS "snap"] = $0
                T[vol] += ( $NF + 0 )
        }
        END {
                for ( k in T )
                        print A[k FS "orig"], A[k FS "snap"] ? A[k FS "snap"] : "no snap", "sum-" T[k] "Gb"


        }
' OFS=, file

# 5  
Old 01-22-2018
another:
Code:
awk '
{
   w=$1; sub("[.].*", "", w);
   if(! a[w]) {b[c++]=w; g=0;}
   a[w]=a[w] $0 ",";
   if ($NF ~ /[0-9]*GB$/) {l=$NF; gsub("[^0-9]", "", l); s[w]=(g+=l);}
}
END {
   for (i=0; i<c; i++) {
      print a[b[i]] ((a[b[i]] ~ /snapshot/) ? "" : "nosnap,") "sum-" s[b[i]] "GB";
   }
}
' datafile

This User Gave Thanks to rdrtx1 For This Post:
ranjancom2000
# 6  
Old 01-22-2018
Or
Code:
awk '
BG      {BG = 0
         if (/snap/)    {SUM += $2
                         printf "%s,sum-%dGB\n", $0, SUM
                         SUM = 0
                         next
                        }
         else            printf "%s,sum-%dGB\n", "nosnap", SUM
         SUM = 0
        }
!BG     {printf "%s,", $0
         SUM += $2
         BG = 1
        }
' file

# 7  
Old 01-22-2018
Quote:
Originally Posted by rdrtx1
another:
Code:
awk '
{
   w=$1; sub("[.].*", "", w);
   if(! a[w]) {b[c++]=w; g=0;}
   a[w]=a[w] $0 ",";
   if ($NF ~ /[0-9]*GB$/) {l=$NF; gsub("[^0-9]", "", l); s[w]=(g+=l);}
}
END {
   for (i=0; i<c; i++) {
      print a[b[i]] ((a[b[i]] ~ /snapshot/) ? "" : "nosnap,") "sum-" s[b[i]] "GB";
   }
}
' datafile


I can believe this works great. But still i dont know how it works
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