Hi, The csum command calculates a message digest for the specified files using the specified hash algorithm. Displays the checksum and byte count of a file.
hello all.
I'm not asking about the algorithm - or how it goes about computing the checksum - I'm asking how it views/looks at the files it does the cksum on.
For instance:
Say you had a directory named "dir_A"
And within this directory you had some files.
So:
dir_A
- file1
-... (5 Replies)
Hi there,
I have a query about cksum. I'm running a script on the Unix box and in a script the cksum result differs from when I run it manually. As far as I can see the file is not being changed, is there any other times that the cksum would be different. (4 Replies)
Hi,
I have a working script, well it works on my machine but when I try it on others the cksum section does not work properly (I know the scripting is not of a high quality but I'm just trying to get it working)
Heres the script:
#!/bin/sh
case $# in
0) echo "usage: enshar filename... (7 Replies)
hi,
I am trying to use the cksum feature in unix. when i make a call to it i get returned something along the lines of:
4603435 14 file3
how do i get the first part of this response only; i.e:
4603435
I'm trying to use at a way without the use of sed and creating temp... (4 Replies)
Hi,
On what factors does the cksum depend.
If i build 2 machines exactly the same, then can i get the checksum of 2 compiled files same.
Thanks (3 Replies)
Hi all,
So I have a binary file and I need to generate an expected EEPROM checksum for it. Ideally, I would like to input the file (with the path) and output a computed checksum. Ive been using (cksum file1) with no avail and I was just curious as to whether there is such thing as EEPROM cksum,... (1 Reply)
I did this:
ls -lrRt | grep ^* | cksum *
but it is showing cksum of sub-directories.
Thanks You
Please use code tags when posting data and code samples, thank you. (3 Replies)
Hi,
I am getting read error when i run cksum </dir> but this command runs successfully for the files and in different server it runs for both files and directories. I am using in both the servers solaris 10 with patch 148888-03. Please suggest...
# cksum ravi(directory)
3454912345 0... (3 Replies)
Discussion started by: Navkreddy
3 Replies
LEARN ABOUT HPUX
sum
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)