Assuming: You want to checksum the directory file itself ( that is what your command seems to imply) then you need read and execute privilege on ravi. You can also get errors when the directory file is corrupted.
What does the command ls -ld ./ravi show? Please post the output.
What are you trying to do? it sounds like you want to checksum everything in the directory.
Maybe like this?:
Code:
cksum $(find ./ravi -type f)
This User Gave Thanks to jim mcnamara For This Post:
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,
I guess most of you have seen this error message while installing Solaris 10 on an x86 platform. I got the error message while installing from DVD ISO on my home VMWare ESXi server.
It took me a long time to figure the exact issue and a subsequent solution. the solution is very... (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)
I've created a directory in /tmp/csum-test on AIX 6.1. Then another under AIX 7.1 host called /tmp/csum-test. There is no files in the directories.
When I run csum -h SHA1 /tmp/csum-test on AIX 6.1 host it gives me a different value then if I run csum -h SHA1 /tmp/csum-test under the AIX 7.1... (2 Replies)
Hi Guys,
Could you please tell me how to read this Solaris version:-
Solaris 8 HW 5/03 s28s_hw2wos_06a SPARC
Thanks. (3 Replies)
Discussion started by: manalisharmabe
3 Replies
LEARN ABOUT DEBIAN
cksum
cksum(3tcl) Cyclic Redundancy Checks cksum(3tcl)__________________________________________________________________________________________________________________________________________________NAME
cksum - Calculate a cksum(1) compatible checksum
SYNOPSIS
package require Tcl 8.2
package require cksum ?1.1.3?
::crc::cksum ?-format format? ?-chunksize size? [ -channel chan | -filename file | string ]
::crc::CksumInit
::crc::CksumUpdate token data
::crc::CksumFinal token
_________________________________________________________________DESCRIPTION
This package provides a Tcl implementation of the cksum(1) algorithm based upon information provided at in the GNU implementation of this
program as part of the GNU Textutils 2.0 package.
COMMANDS
::crc::cksum ?-format format? ?-chunksize size? [ -channel chan | -filename file | string ]
The command takes string data or a channel or file name and returns a checksum value calculated using the cksum(1) algorithm. The
result is formatted using the format(3tcl) specifier provided or as an unsigned integer (%u) by default.
OPTIONS -channel name
Return a checksum for the data read from a channel. The command will read data from the channel until the eof is true. If you need
to be able to process events during this calculation see the PROGRAMMING INTERFACE section
-filename name
This is a convenience option that opens the specified file, sets the encoding to binary and then acts as if the -channel option had
been used. The file is closed on completion.
-format string
Return the checksum using an alternative format template.
PROGRAMMING INTERFACE
The cksum package implements the checksum using a context variable to which additional data can be added at any time. This is expecially
useful in an event based environment such as a Tk application or a web server package. Data to be checksummed may be handled incrementally
during a fileevent handler in discrete chunks. This can improve the interactive nature of a GUI application and can help to avoid excessive
memory consumption.
::crc::CksumInit
Begins a new cksum context. Returns a token ID that must be used for the remaining functions. An optional seed may be specified if
required.
::crc::CksumUpdate token data
Add data to the checksum identified by token. Calling CksumUpdate $token "abcd" is equivalent to calling CksumUpdate $token "ab"
followed by CksumUpdate $token "cb". See EXAMPLES.
::crc::CksumFinal token
Returns the checksum value and releases any resources held by this token. Once this command completes the token will be invalid. The
result is a 32 bit integer value.
EXAMPLES
% crc::cksum "Hello, World!"
2609532967
% crc::cksum -format 0x%X "Hello, World!"
0x9B8A5027
% crc::cksum -file cksum.tcl
1828321145
% set tok [crc::CksumInit]
% crc::CksumUpdate $tok "Hello, "
% crc::CksumUpdate $tok "World!"
% crc::CksumFinal $tok
2609532967
AUTHORS
Pat Thoyts
BUGS, IDEAS, FEEDBACK
This document, and the package it describes, will undoubtedly contain bugs and other problems. Please report such in the category crc of
the Tcllib SF Trackers [http://sourceforge.net/tracker/?group_id=12883]. Please also report any ideas for enhancements you may have for
either package and/or documentation.
SEE ALSO crc32(3tcl), sum(3tcl)KEYWORDS
checksum, cksum, crc, crc32, cyclic redundancy check, data integrity, security
CATEGORY
Hashes, checksums, and encryption
COPYRIGHT
Copyright (c) 2002, Pat Thoyts
crc 1.1.3 cksum(3tcl)