How to create a file contains millions of lines and each line has different datas?
I want to create a file contains millions of lines. The line format like this:
Code:
acnum$$123456$$+$$Tom$$111$$
fields separated by $$, field 1 and field 3 have only two options:acnum or crenum; + or -. field 4 can be any name or any letters. Other fields can be any fixed length digits. So, I want to create millions of lines and each line contains random data satisfied with the format.
I have a file containing a list of references and I want to run a script that will make the same action for each reference.
The input file changes every hour, it's why I want to use a script that can read in a file, record by record, and run a specific action for the reference readed.
Thanks... (1 Reply)
I would like to read line by line out of a file (one word per line) and create with each line a file.
The read line should be also pasted into the file with some other text.
Something like this:
cat readfile.txt | mkfile readline << "bla bli $readline blu" (7 Replies)
hi,
my input file is containg uid, eriMaster ,eriResign, ericontry, dept.
some of the uid are not having all info.
out put should include all info irrespctive of datas of input file
if any one data is missing, then it has to print Null or zero..then continue with the existing one.
here... (0 Replies)
Hi All,
i have two excel sheets with same column name as below
col1 col2 col3
---- ---- -----
1 121 156
24 456 788
45 444 777
765 32 77
col1 col2 col3
---- ---- -----
24 456 ... (1 Reply)
Hi,
I have an XML file with around 1 billion rows in it and i am trying to find the number of times a particular tag occurs in it. The solution i am using works but takes a lot of time (~1 hr) .Please help me with an efficient way to do this.
Lets say the input file is
<Root>
... (13 Replies)
Hello,
I have a requirement to ignore few lines in a file before keyword FILEHEADER . As soon as there is keyword FILEHEADER is identified in file , it will form another file with data from FILEHEADER to whatever in file after FILEHEADER.
I wrote
filename=$1
awk... (4 Replies)
Hello,
I need a program that read a file line by line and prints out lines 1, 2 & 3 after an empty line... An example of entries in the file would be:
SRVXPAPI001 ERRO JUN24 07:28:34 1775
REASON= 0000, PROCID= #E506 #1065: TPCIPPR, INDEX= 003F
... (8 Replies)
HI,
I have 2 text files. file1 and file2.
file1.txt (There are no duplicates in this file)
1234
3232
4343
3435
6564
6767
1213
file2.txt
1234,wq,wewe,qwqw
1234,as,dfdf,dfdf
4343,asas,sdds,dsds
6767,asas,fdfd,fdffd
I need to search each number in file1.txt in file2.txt's 1st... (6 Replies)
Hello Members,
I have one file which contains million of supplier code. I need to load these codes into database 1000 at a time.
Database procedure reads from an external table which is based on the unix files.
All I want to do is to read from the bigger file e.g. MAIN_FILE.txt and create... (1 Reply)
I have a file where every line includes four expressions with a caret in the middle (plus some other "words" or fields, always separated by spaces). I would like to extract from this file, all those lines such that each of the four expressions containing a caret appears in at least four different... (9 Replies)
Discussion started by: uncleMonty
9 Replies
LEARN ABOUT DEBIAN
srec_tektronix
srec_tektronix(5) File Formats Manual srec_tektronix(5)NAME
srec_tektronix - Tektronix hexadecimal file format
DESCRIPTION
The Tektronix hexadecimal file format is no longer very common. It serves a similar purpose to the Motorola and Intel formats, usually
used to transfer data into EPROM programmers.
The Lines
Most Tektronix hex files contain only Tektronix hex lines (see the next section), which always start with a slash ("/[rq]) character.
There are only two types of lines - data lines and a termination line.
Data Lines
Data lines have five fields: address, length, checksum 1, data and checksum 2. The lines always start with a slash ("/[rq]) character.
+--+---------+--------+-----------+------+-----------+
|/ | Address | Length | Checksum1 | Data | Checksum2 |
+--+---------+--------+-----------+------+-----------+
Address This is a 4 character (2 byte) address that specifies where the data in the record is to be loaded into memory.
Data Length
The data length field is a 2 character (1 byte) field that specifies the number of character pairs (bytes) in the data field. This
field never has a value of zero.
Checksum 1
The checksum 1 field is a 2 character (1 byte) field. Its value is the 8-bit sum of the six 4-bit values which make up the address
and length fields.
Data The data field contains character pairs (bytes); the number of character pairs (bytes) is indicated by the length field.
Checksum 2
The checksum 2 field is a 2 character (1 byte) field. Its value is the least significant byte of the sum of the all the 4-bit val-
ues of the data field.
Termination Line
Termination lines have three fields: address, zero and checksum. The lines always start with a slash ("/[rq]) character.
+--+---------+------+----------+
|/ | Address | Zero | Checksum |
+--+---------+------+----------+
Address This is a 4 character (2 byte) address that specifies where to begin execution.
Zero The data length field is a 2 character (1 byte) field of value zero.
Checksum
The checksum 1 field is a 2 character (1 byte) field. Its value is the 8-bit sum of the six 4-bit values which make up the address
and zero fields.
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 Tektronix hex file. It contains the data "Hello, World[rq] to be loaded at address 0.
/00000D0D48656C6C6F2C20576F726C640A52
/00000000
COPYRIGHT
srec_cat version 1.58
Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Peter Miller
The srec_cat program comes with ABSOLUTELY NO WARRANTY; for details use the 'srec_cat -VERSion License' command. This is free software and
you are welcome to redistribute it under certain conditions; for details use the 'srec_cat -VERSion License' command.
AUTHOR
Peter Miller E-Mail: pmiller@opensource.org.au
//* WWW: http://miller.emu.id.au/pmiller/
Reference Manual SRecord srec_tektronix(5)