Hi Friends,
I prefer to represent my problem with example.
I have two files as below:
file1.txt
---------
abcd.....1234......XY
abcd.....1235......XX
abcd.................
abcd...231236..1111YX
abcd...241236..1112YY
abcd...241237......YY
abce.....1235......YY
file2.txt
-------
... (4 Replies)
Hi all,
I need help manipulating the file below.
Here is what I needed to do.
First, I have to replace INSUPD to DELETE.
Then I need to change the content of the file around by flipping the contents in the file from the bottom to the top (start from "CMD")
How should I attack this?
Here... (2 Replies)
Hi
I am new to shell scripting and i am preparing a script.
for now i am work on a sub part of it..but i am unable to make it work.
---
the test code that i am working on
--------------------------
IFS=""
Sample_eve=`psg proc_s | grep tY`
n=0
for line in $Sample_eve... (41 Replies)
Hi. I haven't had to write bash scripts in a long time and have a simple task to do, but need some help:
Input:
chrY:22627291-22651542
chrY:23045932-23070172
chrY:23684890-23696359
chrY:25318610-25330083
chrY:25451096-25462570
chr10:1054847-1061799
chr10:1058606-1080131... (7 Replies)
Hi guys
Firstly, I'd like to say hi and how great this forum is. I'm not new to UNIX but am relatively new to scripting. I have a personal project that I'm working on just to try and speed up my learning.
I working with a text file, well more of a logfile really. It has several columns of... (6 Replies)
I need the command top to output as:
Memory: 2048M real, 1499M free, 53M swap in use, 5423M swap free
on just the memory line.
Instead, I have compiled the new version of top that displays as so:
Memory: 2048M phys mem, 1499M free mem, 5476 total swap, 5423M swap free
I read... (2 Replies)
Hi everybody,
I need an urgent help with a BASH script. I have file which contains (besides the other data) the lines with the following structure identified by with keyword PCList:
<PARAMETER NAME="PCList"
TYPE="LIST_STRUCTURE"
MODEL="{,}"
... (1 Reply)
I have written a shell script to do some processing and have to manipulate a variable. Basically, the variable is like this --
var=set policy:set cli
My purpose is to split it into two variables based on the position of ":". To get the right end, I am doing this --
vaa1=${vaa#*:}
... (1 Reply)
Hi Folks,
I'm looking for some ideas on how to change some file names. I'm pretty sure I need to use sed or awk but they still escape me. The files I have are like:
VOD0615 NEW Blades R77307.pdf or
VOD0615_NEW_Blades_R77307.pdf
and what I want after processing is:
R77307 NEW Blades.pdf
... (5 Replies)
Conversion of string into currency value..
ex1:
number_of_positions=2
input_string=345987
Output= 345,987.00
ex2:
number_of_positions=4
input_string=1345987
Output= 1,345,987.0000
Please respond as soon as possible
edit by bakunin: we will gladly respond as soon as... (15 Replies)
Discussion started by: suren.bills
15 Replies
LEARN ABOUT MOJAVE
sum
sum(n) Cyclic Redundancy Checks sum(n)
__________________________________________________________________________________________________________________________________________________NAME
sum - Calculate a sum(1) compatible checksum
SYNOPSIS
package require Tcl 8.2
package require sum ?1.1.0?
::crc::sum ?-bsd | -sysv? ?-format fmt? ?-chunksize size? [ -filename file | -channel chan | string ]
_________________________________________________________________DESCRIPTION
This package provides a Tcl-only implementation of the sum(1) command which calculates a 16 bit checksum value from the input data. The
BSD sum algorithm is used by default but the SysV algorithm is also available.
COMMANDS
::crc::sum ?-bsd | -sysv? ?-format fmt? ?-chunksize size? [ -filename file | -channel chan | string ]
The command takes string data or a file name or a channel and returns a checksum value calculated using the sum(1) algorithm. The
result is formatted using the format(n) specifier provided or as an unsigned integer (%u) by default.
OPTIONS -sysv The SysV algorithm is fairly naive. The byte values are summed and any overflow is discarded. The lowest 16 bits are returned as the
checksum. Input with the same content but different ordering will give the same result.
-bsd This algorithm is similar to the SysV version but includes a bit rotation step which provides a dependency on the order of the data
values.
-filename name
Return a checksum for the file contents instead of for parameter data.
-channel chan
Return a checksum for the contents of the specified channel. The channel must be open for reading and should be configured for
binary translation. The channel will no be closed on completion.
-chunksize size
Set the block size used when reading data from either files or channels. This value defaults to 4096.
-format string
Return the checksum using an alternative format template.
EXAMPLES
% crc::sum "Hello, World!"
37287
% crc::sum -format 0x%X "Hello, World!"
0x91A7
% crc::sum -file sum.tcl
13392
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
cksum(n), crc32(n), sum(1)KEYWORDS
checksum, cksum, crc, crc32, cyclic redundancy check, data integrity, security, sum
CATEGORY
Hashes, checksums, and encryption
COPYRIGHT
Copyright (c) 2002, Pat Thoyts <patthoyts@users.sourceforge.net>
crc 1.1.0 sum(n)