SUM(1) General Commands Manual SUM(1)NAME
sum - sum and count blocks in a file
SYNOPSIS
sum file
DESCRIPTION
Sum calculates and prints a 16-bit checksum for the named file, and also prints the number of blocks in the file. It is typically used to
look for bad spots, or to validate a file communicated over some transmission line.
SEE ALSO wc(1)DIAGNOSTICS
`Read error' is indistinuishable from end of file on most devices; check the block count.
SUM(1)
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sum(1) General Commands Manual sum(1)NAME
sum - print checksum and block or byte count of file(s)
SYNOPSIS
[file ...]
Remarks
is obsolescent and should not be used in new applications that are intended to be portable between systems. Use instead (see cksum(1)).
DESCRIPTION
calculates and prints to standard output a checksum for each named file, and also prints the size of the file in 512 byte blocks, rounded
up.
The default algorithm is a 16-bit sum of the bytes in which overflow is ignored. Alternate algorithms can be selected with the and
options.
Standard input is used if no file names are given.
is typically used to verify data integrity when copying files between systems.
Options
recognizes the following options:
Use an alternate algorithm in which the 16-bit sum is right rotated
with each byte in computing the checksum.
Use the 32-bit cyclical redundancy check (CRC) algorithm used by
RETURN VALUE
returns the following values upon completion:
All files were processed successfully.
One or more files could not be read or some other error occurred.
If an inaccessible file is encountered, continues processing any remaining files, but the final exit status is affected.
DIAGNOSTICS
Read error conditions are indistinguishable from end of file on most devices; check the block or byte count.
WARNINGS
This command is likely to be withdrawn from X/Open standards. Applications using this command might not be portable to other vendors'
platforms. The usage of cksum(1) is recommended.
SEE ALSO cksum(1), wc(1).
STANDARDS CONFORMANCE sum(1)
Hi,
I have a shell scripting. This will take 7 digit number in each line and add 7 digit number with next subsequent lines ( normal addition ).
Eg:
0000001
0000220
0001235
0000022
0000023
...........
.........
........
Like this i am having around 1500000 records. After adding... (23 Replies)
I am trying to take two files and add the numbers from each. There is a total of 5192 numbers in each file and I want to add them row by row... ie. first row of file 1 + first row of file 2 = first row of output. Eventually I will be summing 40401 of these files together but starting with 2 just... (21 Replies)
We have Sun OS running on spark :
SunOS ciniwnpr67 5.10 Generic_118833-24 sun4u sparc SUNW,Sun-Fire-V440
Having Physical RAM :
Sol10box # prtconf | grep Mem
Memory size: 8192 Megabytes
My Top Output is :
130 processes: 129 sleeping, 1 on cpu
CPU states: 98.8% idle, 0.2% user, 1.0%... (39 Replies)
We have Sun OS running on spark :
SunOS ciniwnpr67 5.10 Generic_118833-24 sun4u sparc SUNW,Sun-Fire-V440
Having Physical RAM :
Sol10box # prtconf | grep Mem
Memory size: 8192 Megabytes
My Top Output is :
130 processes: 129 sleeping, 1 on cpu
CPU states: 98.8% idle, 0.2% user, 1.0%... (27 Replies)
Hi all i got a script up but i cant add up the summary report.. keep having synax error . mind helping me to take a look and tell me what went wrong..
i know is a bit long but i hope someone can hep me with it. thanks
the error message come up when i try to run the sumary report..
i guess... (16 Replies)
Dear All,
I want to get help for below case.
I have a file like this.
saman 1
gihan 2
saman 4
ravi 1
ravi 2
so i want to get the result,
saman 5
gihan 2
ravi 3 like this.
Pls help me. (17 Replies)
Displaying information using awk
Hey guys, i am using awk to display my information in a certain order.
Database : Persia:42:John
France:50:Mabel
Persia:50:Rach
Germany:60:JohnMy expected output is :
... (25 Replies)
Hi,
Im looking for a script which will calculate the unique strings column 2 & 3 values in a log as mentioned in example
eg:-
bag 12 12
bag 18 15
bags 15 13
bags 15 14
blazer 24 24
blazer 33 32
boots 19 15
Result should be:-
bag 30 27
bags 30 27... (32 Replies)
hi guys,
i have a script that basically just sums up the values of 2 particular columns in a file, grouped by the columns specified as well
The script is quite long, but it's basically just repetitive.. just for each condition.
This script only accepts one type of input file.
... (22 Replies)
Hello,
I would like to make a script that searches through a SRC folder and copies only files it's never seen before to a DEST folder.
SRC = /user/.phonesync/photos-backup
DST = /usr/.phonesync/photos-new
So basically, I'd start with a:
md5sum /user/.phonesync/photos-backup/* >... (29 Replies)
Hi,
I am trying to get the hash values of md5 of a string. I am on Redhat Linux. using the 25-27 field in the file I need to generate the md5 and append it at the end of the record as a new field.
I have tried the below code but its painfully slow. can you please suggest any alternatives or... (21 Replies)
I have a script that builds a database ~30 million lines, ~3.7 GB .cvs file. After multiple optimzations It takes about 62 min to bring in and parse all the files and used to take 10 min to remove duplicates until I was requested to add another column. I am using the highly optimized awk code:
awk... (34 Replies)
I'm looking for a script that sums the contents of a folder,
When you give a parameter to the script , i want to know the size of the directory, the number of files, number of folders,
These are commands that I have already found
du -s
find . -type f | wc -l
find . -type d | wc -ly
... (19 Replies)
Dear Experts,
I am creating a shell script (A) which is menu driven and in turn calls another shell scripts (X) depending on the selection. X has a list of commands which runs batch jobs in auto mode.
Content of X
./sqr.ksh axhri051_sf axhri051_sf.par $1 $2 XHRPPYOV;
./sqr.ksh axbni062... (19 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)