I have a file which is 5 million records. And each records has 412 fields has delimited by "|". So that makes each records to be 2923 bytes long. I wanted to extract specific records like top 100 or 2500 - 5000, 50001 - 10000 etc. from this file.
I tried using head command for top 100 records,... (1 Reply)
suppose u have a file which consist of many data points separated by asterisk
Question is to extract third part in each line .
0.0002*0.003*-0.93939*0.0202*0.322*0.3332*0.2222*0.22020
0.003*0.3333*0.33322*-0.2220*0.3030*0.2222*0.3331*-0.3030
0.0393*0.3039*-0.03038*0.033*0.4033*0.30384*0.4048... (5 Replies)
hi,
I have a log file , which is appending with current data
i need the extarct which is updated from last 30 minutes
the format of the date is Jun 18, 2008 8:59:18 AM
how can i subtract 30 mins from the current date
thanks
Tarun. (5 Replies)
Hi
I am running a 'grep' command to retrieve a line from the file. The problem is that I also need 21 lines which go right after the line I just 'grep'(ed)
Is there a way to retrieve this block of data? Thanks -A (4 Replies)
Ok, I have some experience with awk, but I haven't touched it for years ... back again and I have one problem.
I have large char file, it has hundreds of major text blocks. First, I need to grab and process those, and ignore everything else. That bit is simple.
Within those major text... (5 Replies)
Ladles and Jellyspoons,I am trying to use, unsucessfully I might add, awk to strip a large block of information from and audit output.The format resembles the following:-----------------------------------------------------------Event: execveTime: ... (3 Replies)
Hi,
I was trying a script to cature all data between 12-05-09 06:00:00 to 12-05-09 23:59:59 from a huge file. (i.e. Skip all data between 00:00:00 to 05:59:59)
TOKEN-1 12-05-09 00:00:00 MAIPR no_OMDB_key #000995 >
..
..
..
TOKEN-1 12-05-09 06:00:00 TRUNK 358 #04988 >
..
..
TOKEN-1 12-05-09... (2 Replies)
Experts ,
Below is the data:
--- Physical volumes ---
PV Name /dev/dsk/c1t2d0
VG Name /dev/vg00
PV Status available
Allocatable yes
VGDA 2
Cur LV 8
PE Size (Mbytes) 8
Total PE 4350
Free PE 2036
Allocated PE 2314
Stale PE 0
IO Timeout (Seconds) default
--- Physical volumes ---... (5 Replies)
Hi All,
Iam unable to print the below block and getting the error.Can anyone please help me in this.
Input Data
eaits001z$ echo "-------LINENO_JOBID_VAL--------${LINENO_JOBID_VAL}---"
-------LINENO_JOBID_VAL--------58167|253473 58169|253473 58171|253473 58179|253473 58180|253473 58181|257311... (9 Replies)
Discussion started by: cskumar
9 Replies
LEARN ABOUT DEBIAN
h5jam
h5jam(1) General Commands Manual h5jam(1)NAME
h5jam - Add a user block to a HDF5 file
SYNOPSIS
h5jam -u user_block -i in_file.h5 [-o out_file.h5] [--clobber]
DESCRIPTION
h5jam concatenates a user_block file and an HDF5 file to create an HDF5 file with a user block. The user block can be either binary or
text. The output file is padded so that the HDF5 header begins on byte 512, 1024, etc.. (See the HDF5 File Format.)
If out_file.h5 is given, a new file is created with the user_block followed by the contents of in_file.h5. In this case, infile.h5 is
unchanged.
If out_file.h5 is not specified, the user_block is added to in_file.h5.
If in_file.h5 already has a user block, the contents of user_block will be added to the end of the existing user block, and the file
shifted to the next boundary. If --clobber is set, any existing user block will be overwritten.
EXAMPLE USAGE
Create new file, newfile.h5, with the text in file mytext.txt as the user block for the HDF5 file file.h5.
h5jam -u mytext.txt -i file.h5 -o newfile.h5
Add text in file mytext.txt to front of HDF5 dataset, file.h5.
h5jam -u mytext.txt -i file.h5
Overwrite the user block (if any) in file.h5 with the contents of mytext.txt.
h5jam -u mytext.txt -i file.h5 --clobber
RETURN VALUE
h5jam returns the size of the output file, or -1 if an error occurs.
CAVEATS
This tool copies all the data (sequentially) in the file(s) to new offsets. For a large file, this copy will take a long time.
The most efficient way to create a user block is to create the file with a user block (see H5Pset_user_block), and write the user block
data into that space from a program.
The user block is completely opaque to the HDF5 library and to the h5jam and h5unjam tools. The user block is simply read or written as a
string of bytes, which could be text or any kind of binary data. It is up to the user to know what the contents of the user block means
and how to process it.
When the user block is extracted, all the data is written to the output, including any padding or unwritten data.
This tool moves the HDF5 file through byte copies, i.e., it does not read or interpret the HDF5 objects.
SEE ALSO h5dump(1), h5ls(1), h5diff(1), h5import(1), gif2h5(1), h52gif(1), h5perf(1), h5unjam(1).
h5jam(1)