I have CSV file which looks like below, i want to calulate number of records for each brand say SOLO_UNBEATABLE E and SOLO_UNBEATABLE F combined and record count is say 20 . i want to calculate for each brand, and here only first record will have all data and rest of record for the brand is with only two fields displayed.
Let me know how i can number of records for such situation ?
Hello all,
I'm totally new to UNIX/Linux but I'm taking a course in it at my local JC.
My question: I have been tasked with writing a gawk script that will create a nicely formatted report. That part I've done ok on...however, the very last thing that must be done is a calculation of a... (4 Replies)
Hello all :)
I need some help; I'm running the sp_spaceused command on various tables and saving the output to a file. So, I have an input file that has 3 rows - each row has 7 columns. I would like to 1) sort the file on the 4th column, 2) take the 4th column in the first row and add 25% to... (2 Replies)
Hi All
I like to know how can we calculate the number of rows and the average of the values present in the file. I will not know what will be the rowcount, which will be dynamic in nature of the file.
eg.
29
33
48
30
28 (6 Replies)
Hi,
I have a file that has data in it that says
00:01:48.233 1212
00:01:56.233 345
00:09:01.221 5678
00:12:23.321 93444
The file has more line than this but i just wanted to put in a snippet to ask how I would get the highest number with time stamp into another file. So from the above... (2 Replies)
Hello all,
I have a problem with a skript of mine:
My input has the following format
1,33296 transcript_id"ENSRNOT00000018629" 0 1,33296 0
0 transcript_id"ENSRNOT00000029014" 0
0,907392 transcript_id"ENSRNOT00000016905" 0,907392
0 transcript_id"ENSRNOT00000053370" 0
0... (0 Replies)
I would like to print the number of records of 2 files, and divide the two numbers
awk '{print NR}' file1 > output1
awk '{print NR}' file2 > output2
paste output1 output2 > output
awl '{print $1/$2}' output > output_2
is there a faster way? (8 Replies)
Hi all,
I have a requirement to calculate the difference of number of days of time stamp of a file and system date and if the difference is greater than 15 days it should prompt as previous month file otherwise current month file.
Below is the code i used and it is working fine till now. (You... (2 Replies)
Hello Friends,
I've been trying to calculate total number of a certain match in multiple data records files (DRs).
Let say I have a daily created folders for each day since the beginning of july like the following
drwxrwxrwx 2 mmsuper med 65536 Jul 1 23:59 20150701
drwxrwxrwx 2 mmsuper... (1 Reply)
Hello,
I have few old V210/V240, running Solaris-8. I am trying to find, number of physical CPUs, number of cores and number of virtual processors. psrinfo is giving me confusing status.
It looks like, there are 2 physical CPUs, but psrinfo -p shows me just 1
bash-2.03$ psrinfo -v
Status of... (4 Replies)
Discussion started by: ron323232
4 Replies
LEARN ABOUT DEBIAN
srec_signetics
srec_signetics(5) File Formats Manual srec_signetics(5)NAME
srec_signetics - Signetics file format
DESCRIPTION
The Signetics file format is not often used. The major disadvantage in modern applications is that the addressing range is limited to only
64kb.
Records
All data lines are called records, and each record contains the following 5 fields:
+--+------+----+----+----+----+
|: | aaaa | cc | as | dd | ss |
The field are defined as follows: +--+------+----+----+----+----+
: Every record starts with this identifier.
aaaa The address field. A four digit (2 byte) number representing the first address to be used by this record.
cc The byte-count. A two digit value (1 byte), counting the actual data bytes in the record.
as Address checksum. Covers 2 address bytes and the byte count.
dd The actual data of this record. There can be 1 to 255 data bytes per record (see cc)
ss Data Checksum. Covers only all the data bytes of this record.
Record Begin
Every record begins with a colon ":[rq] character. Records contain only ASCII characters. No spaces or tabs are allowed in a record. In
fact, apart from the 1st colon, no other characters than 0..9 and A..F are allowed in a record. Interpretation of a record should be case
less, it does not matter if you use a..f or A..F.
Unfortunately the colon was chosen for the Signetics file format, similar to the Intel format (see srec_intel(5) for more information).
However, SRecord is able to automatically detect the dofference between the two format, when you use the -Guess format specifier.
Address Field
This is the address where the first data byte of the record should be stored. After storing that data byte, the address is incremented by
1 to point to the address for the next data byte of the record. And so on, until all data bytes are stored. The address is represented by
a 4 digit hex number (2 bytes), with the MSD first. The order of addresses in the records of a file is not important. The file may also
contain address gaps, to skip a portion of unused memory.
Byte Count
The byte count cc counts the actual data bytes in the current record. Usually records have 32 data bytes, but any number between 1 and 255
is possible.
A value of 0x00 for cc indicates the end of the file. In this case not even the address checksum will follow! The record (and file) are
terminated immediately.
It is not recommended to send too many data bytes in a record for that may increase the transmission time in case of errors. Also avoid
sending only a few data bytes per record, because the address overhead will be too heavy in comparison to the payload.
Address Checksum
This is not really a checksum anymore, it looks more like a CRC. The checksum can not only detect errors in the values of the bytes, but
also bytes out of order can be detected.
The checksum is calculated by this algorithm:
checksum = 0
for i = 1 to 3
checksum = checkum XOR byte
ROL checksum
next i
For the Address Checksum we only need 2 Address bytes and 1 Byte Count byte to be added. That's why we count to 3 in the loop. Every byte
is XORed with the previous result. Then the intermediate result is rolled left (carry rolls back into b0).
This results in a very reliable checksum, and that for only 3 bytes!
The last record of the file does not contain any checksums! So the file ends right after the Byte Count of 0.
Data Field
The payload of the record is formed by the Data field. The number of data bytes expected is given by the Byte Count field. The last
record of the file may not contain a Data field.
Data Checksum
This checksum uses the same algorithm as used for the Address Checksum. This time we calculate the checksum with only the data bytes of
this record.
checksum = 0
for i = 1 to cc
checksum = checksum XOR byte
ROL checksum
next i
Note that we count to the Byte Count cc this time.
Size Multiplier
In general, binary data will expand in sized by approximately 2.4 times when represented with this format.
EXAMPLE
Here is an example Signetics file
:B00010A5576F77212044696420796F75207265617B
:B01010E56C6C7920676F207468726F756768206136
:B02010256C6C20746861742074726F75626C652068
:B0300D5F746F207265616420746869733FD1
:B03D00
In the example above you can see a piece of code in Signetics format. The first 3 lines have 16 bytes of data each, which can be seen by
the byte count. The 4th line has only 13 bytes, because the program is at it's end there.
Notice that the last record of the file contains no data bytes, and not even an Address Checksum.
SEE ALSO
http://sbprojects.fol.nl/knowledge/fileformats/signetics.htm
AUTHOR
This man page was taken from the above Web page. It was written by San Bergmans <sanmail@bigfoot.com>
Reference Manual SRecord srec_signetics(5)