05-05-2008
they can't be the same file then.
before you gzip then what is the output of du -sk and cksum on each file?
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Have an issue with the following snippet of code, in particular the execution of the `gzip -9 ${ARCHIVE_FILE}`.
It is failing with a ReturnCode of 1 - Can anyone lead me to a souce that identifies & describes what RC's there are for gzip, as I've not been able to find any.
echo '-- TARing up... (1 Reply)
Discussion started by: Cameron
1 Replies
2. SCO
Hy guys,
During installation of machine (Pentium x86, 64MB RAM), well during booting SCO UnixWARE 7.1.1 diskette 1/2 i get following error (after SCO logo)
"memfs.fs: I/0 error or unexpected EOF"
Bootstrap Command Processor
...
_
Please advise! (2 Replies)
Discussion started by: R@LE
2 Replies
3. Solaris
hi sun experts,
i have problem with my server sun fire v240, if i run application the server will restarting itself and i got some error messages like this:
Mar 21 15:15:03 sun ^Mpanic/thread=2a10094bd40:
Mar 21 15:15:04 sun unix: BAD TRAP: type=34 rp=2a10094b660 addr=30005566764... (0 Replies)
Discussion started by: bucci
0 Replies
4. UNIX for Dummies Questions & Answers
Hi,
I am getting this error
gunzip file1.tar.Z
gunzip: file1.tar.Z: not in gzip format
Any clues? This goes bad only in some recent installations of ids (5 Replies)
Discussion started by: eagercyber
5 Replies
5. Shell Programming and Scripting
Hi I have one directory as "eAMRLTXFLDS0"...I am supposed to create a
eAMRLTXFLDS0.ofcld.gz using gzip...
Can u plz help me wth the command..
Thanks in advance.. (4 Replies)
Discussion started by: grajesh_955
4 Replies
6. Programming
Hi all...
I have the following code:
FILE *fp = popen(" gzip -dc /somemount/somefile.gz", "r");
while(fgets(buffer, 1024, fp))
{
some code....
}
"/somemount" is a mount of some network drive. Sometimes error occurs in while loop - I can see the following "Input/Output error"... (4 Replies)
Discussion started by: adm1n
4 Replies
7. Shell Programming and Scripting
I have written the following shell script for submitting check to nagios .It was working fine a few hours ago.I don remember what changes i made and its giving integer expression expected error.
#!/bin/bash
#$PGREP ${SSHD}
if ]
then
echo "ssh down"
... (1 Reply)
Discussion started by: nasir_khan
1 Replies
8. Programming
The following is a program to convert an infix expression to postfix expression.
//Convert an infix expression to postfix expression...
#include<iostream>
#include<string>
#include<cstdlib>
using namespace std;
char ifx,pfx,stk;
int top=-1,n;
void push(char ch)
{
if(top!=n)
... (6 Replies)
Discussion started by: poonam.gaigole
6 Replies
9. UNIX for Advanced & Expert Users
Hi All,
I have a random test file: test.txt, size: 146
$ ll test.txt
$ 146 test.txt
Take 1:
$ cat test.txt | gzip > test.txt.gz
$ ll test.txt.gz
$ 124 test.txt.gz
Take 2:
$ gzip test.txt
$ ll test.txt.gz
$ 133 test.txt.gz
As you can see, gzipping a file and piping into gzip... (1 Reply)
Discussion started by: hanfresco
1 Replies
10. Shell Programming and Scripting
I am creating a script to run the SysInfo tool under HPUX servers, this is my script!
#!/usr/bin/ksh
#
# Date: February 29th 2011
#
#Definicion de variables
PATH_TMP=/home/eponcede
> HPUX_SysInfo.log
for host in `cat $PATH_TMP/servers/host_hp2_test`
do
echo... (2 Replies)
Discussion started by: eponcedeleonc
2 Replies
cksum(n) Cyclic Redundancy Checks cksum(n)
__________________________________________________________________________________________________________________________________________________
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(n) 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(n), sum(n)
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(n)