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Full Discussion: awk and sum
Top Forums Shell Programming and Scripting awk and sum Post 303011680 by Scrutinizer on Monday 22nd of January 2018 11:21:22 AM
Old 01-22-2018
Another approach:
Code:
awk '
{
  split($1,F,".")
  i=F[1]
  A[i]=A[i] $0 ","
  T[i]+=$2
}
END {
  for(i in A)
    printf "%ssum-%sGB\n",A[i],T[i]
}
' file

But you did not answer one of Don Cragun's questions in post #2
Quote:
Originally Posted by Don Cragun
[..]
Are all numbers to be added given as "GB" values? Or could "KB", "MB", "TB" and/or other multipliers be present?
This is quite essential, because the approaches in this thread will be fail if the file can also contain KB, MB or TB values.
This User Gave Thanks to Scrutinizer For This Post:
yifangt
 

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LEARN ABOUT NETBSD

fssconfig

FSSCONFIG(8)						    BSD System Manager's Manual 					      FSSCONFIG(8)

NAME

     fssconfig -- configure file system snapshot devices

SYNOPSIS

     fssconfig [-cxv] device path backup [cluster [size]]
     fssconfig -u [-v] device
     fssconfig -l [-v] [device]

DESCRIPTION

     The fssconfig command configures file system snapshot pseudo disk devices.  It will associate the file system snapshot disk device with a
     snapshot of path allowing the latter to be accessed as though it were a disk.

     If backup resides on the snapshotted file system a persistent snapshot will be created.  This snapshot is active until backup is unlinked.
     This snapshot mode is only supported for ffs files systems.

     Otherwise data written through the path will be saved in backup.  If backup is a regular file, it will be created with length size.  Default
     size is the size of path.	Data is saved to backup in units of cluster bytes.

     Options indicate an action to be performed:

     -c   Configures the device.  If successful, references to device will access the contents of path at the time the snapshot was taken.  If
	  backup is a directory, a temporary file will be created in this directory.  This file will be unlinked on exit.

     -l   List the snapshot devices and indicate which ones are in use.  If a specific device is given, then only that will be described.

     -u   Unconfigures the device.

     -v   Be more verbose listing the snapshot devices.

     -x   Unlink backup after the device is configured.

     If no action option is given, -c is assumed.

FILES

     /dev/rfss?
     /dev/fss?

EXAMPLES

	   fssconfig fss0 /usr /tmp/back

     Configures the snapshot device fss0 for a snapshot of the /usr file system.  Data written through /usr will be backed up in /tmp/back.

	   fssconfig fss1 / /dev/rsd0e 8192

     Configures the snapshot device fss1 for a snapshot of the / file system.  Data written through / will be backed up in /dev/rsd0e.	The backup
     will take place in units of 8192 bytes.

	   fssconfig -u fss0

     Unconfigures the fss0 device.

SEE ALSO

     opendisk(3), fss(4), mount(8), umount(8)

HISTORY

     The fssconfig command appeared in NetBSD 2.0.

BSD
								   June 11, 2012							       BSD
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