sum(1B) SunOS/BSD Compatibility Package Commands sum(1B)NAME
sum - calculate a checksum for a file
SYNOPSIS
/usr/ucb/sum file...
DESCRIPTION
sum calculates and displays a 16-bit checksum for the named file and displays the size of the file in kilobytes. It is typically used to
look for bad spots, or to validate a file communicated over some transmission line. The checksum is calculated by an algorithm which may
yield different results on machines with 16-bit ints and machines with 32-bit ints, so it cannot always be used to validate that a file has
been transferred between machines with different-sized ints.
USAGE
See largefile(5) for the description of the behavior of sum when encountering files greater than or equal to 2 Gbyte ( 2**31 bytes).
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWscpu |
+-----------------------------+-----------------------------+
SEE ALSO sum(1), wc(1), attributes(5), largefile(5)DIAGNOSTICS
Read error is indistinguishable from EOF on most devices; check the block count.
NOTES
sum and /usr/bin/sum (see sum(1)) return different checksums.
This utility is obsolete.
SunOS 5.10 8 Nov 1995 sum(1B)
Check Out this Related Man Page
sum(1B) SunOS/BSD Compatibility Package Commands sum(1B)NAME
sum - calculate a checksum for a file
SYNOPSIS
/usr/ucb/sum file...
DESCRIPTION
sum calculates and displays a 16-bit checksum for the named file and displays the size of the file in kilobytes. It is typically used to
look for bad spots, or to validate a file communicated over some transmission line. The checksum is calculated by an algorithm which may
yield different results on machines with 16-bit ints and machines with 32-bit ints, so it cannot always be used to validate that a file has
been transferred between machines with different-sized ints.
USAGE
See largefile(5) for the description of the behavior of sum when encountering files greater than or equal to 2 Gbyte ( 2^31 bytes).
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWscpu |
+-----------------------------+-----------------------------+
SEE ALSO sum(1), wc(1), attributes(5), largefile(5)DIAGNOSTICS
Read error is indistinguishable from EOF on most devices; check the block count.
NOTES
sum and /usr/bin/sum (see sum(1)) return different checksums.
This utility is obsolete.
SunOS 5.11 8 Nov 1995 sum(1B)
Hi,
1-I want to calculate the size of all files which are generated during last month in a directory. How can I do that ?
Of cours, I find them by :
$ls -l | grep jun
but how to calculate the sum of their size ?
2- the same but for all files generated last month and before that.
many thanks... (11 Replies)
Hi
I have an file which looks like
country address phone amount
sweden |address |phone | 10 |
Singapo |address |phone | 20 |
Italy-N |address |phone | 30 |
denmar |address |phone | 40 |
Here i need to do the sum(amount), how to do this in shell scripting
Thanks
Babu (11 Replies)
Hi all,
I have a requirement where i have to read multiple files using Shell Script in Korn Shell.
each file will have the 3rd line as the amount field, i have to read this amount field and sum it for all the files.
any idea on how to achieve this?? (i think i can achieve it using a loop,... (9 Replies)
Here I want to calculate mean,variance and sum from a file
1.1*2*4*22*211*22*12*22*22*11
2.2*2*22*12*22*11*11*122*33*22
3.9*7*22*88*87*98*67*66*56*66*11
As this is a large file and i am trying to write in c
where formulae of
MEAN = 1/N (X1...+..Xn)
Variance = square root of 1/N-1... (9 Replies)
Hi
I am trying to add count values from two different files into one file. Could any body please suggest me best command to do this? My problem was as follows:
a.txt b.txt c.txt
10 20 30(needed)
i tried cat a.txt b.txt > c.txt (its not adding the values)
Thanks in advance..
Praveen (8 Replies)
i want to get the value for column 4rth when i =4. please guide what i am doing wrong. thanks
var=`cat file.csv`
for i in $var; do {
if ; then
var4=$var4+$i
fi
echo $i
}
done
I am geting this error message "0403-009 The specified number is not valid for this command." (8 Replies)
// AIX 5.3 & AIX 6.1
ls -al |awk '{print $5}'
This gives each file's size in byte.
I need to get:
- the sum of all files in Giga bytes with loop.
- excluding the size of directories (ls -al returns the size of directories).
There are hundreds and thousands of files, so summing up... (8 Replies)
Hi
Am trying to sum up a file
# cat /Out
maths 2 0.0
english 2091 0.2
history -1 0.0
physics 18 0.0
--------------------------------------
maths ... (9 Replies)
I have a requirement to sum all records in a column in a file and get the total sum value .There are 15 million records in the file.Data in the file has 2 decimal places.
I use the below AWK function
cut -d "," -f4 data.txt|awk ' {sum+=$1 } END { Printf("%.2f\n",sum)}'
I get the below... (8 Replies)
Hi All,
I have a requirement where I need to find sum of values from column D through O present in a CSV file and check whether the sum of each Individual column matches with the value present for that corresponding column present in the trailer record.
For example, let's assume for column D... (9 Replies)
Hi all,
I have one host i need to run in loop to check the capacity from different frame and get the output to one file and sum it and convert to TB
this is Code
#!/bin/ksh
DATE=`date '+%d%m%y'`
for f in `cat /home/esx-capacity/esx-host.txt`
do
for g in `cat /home/esx-capacity/frame`... (10 Replies)
Hi Experts,
Please bear with me, i need help
I am learning AWk and stuck up in one issue.
First point : I want to sum up column value for column 7, 9, 11,13 and column15 if rows in column 5 are duplicates.No action to be taken for rows where value in column 5 is unique.
Second point : For... (12 Replies)
11☺Hi,
I have to data sets:
One is in .txt format and other is in .csv format, please refer below two outputs from two files.
File1.txt
SOURCE PAYDATE TOTAL_DOLLARS RECORD_COUNT
ASSET 05/25/2018 247643.94
ASSET 06/20/2018 ... (27 Replies)
How to sum up and print into the next line the total SUM.
]$ cat hhhh
aaa1a 1
aaa1g 2
aaa1f 3
baa4f 3
baa4d 4
baa4s 4
cddg1 3
cddg3 4
cddfg 1
$ cat hhhh|awk ' {sum+=$2} END {print sum}'
25
Desire output:
aaa1a 1 (13 Replies)
1. The problem statement, all variables and given/known data:
Write a shell script that finds and display the sum of even positive integers from 0 to 100. Use the while control structure. Show your script and a sample run.
2. Relevant commands, code, scripts, algorithms:
Must us a while... (8 Replies)