As part of a bigger task, I had to read thru a file and separate records into various batches based on a field. Specifically, separate records based on the value in the batch field as defined below. The batch field left-justified numbers.
The datafile is here
> cat infile
12345 1 John Smith ... (5 Replies)
what is the correct command for finding the largest file and displaying it without any error information?
I can find it, but how do I display it in the same command? (6 Replies)
Hello,
I have got one file with more than 120+ million records(35 GB in size). I have to extract some relevant data from file based on some parameter and generate other output file.
What will be the besat and fastest way to extract the ne file.
sample file format :--... (2 Replies)
Hi,
I have a huge file say with 2000000 records. The file has 42 fields. I would like to pick randomly 1000 records from this huge file. Can anyone help me how to do this? (1 Reply)
Dear list
its my first post and i would like to greet everyone
What i would like to do is select records 7 and 11 from each files in a folder then run an executable inside the script for the selected parameters.
The file format is something like this
7 100 200
7 100 250
7 100 300 ... (1 Reply)
Hello gurus,
I am new to "awk" and trying to break a large file having 4 million records into several output files each having half million but at the same time I want to keep the similar key records in the same output file, not to exist accross the files.
e.g. my data is like:
Row_Num,... (6 Replies)
Hello:
I am new to shell script programming. Now I would like to select specific records block from a file. For example, current file "xyz.txt" is containing 1million records and want to select the block of records from line number 50000 to 100000 and save into a file. Can anyone suggest me how... (3 Replies)
Hello All,
I have a large file, more than 50,000 lines, and I want to split it in even 5000 records. Which I can do using
sed '1d;$d;' <filename> | awk 'NR%5000==1{x="F"++i;}{print > x}'Now I need to add one more condition that is not to break the file at 5000th record if the 5000th record... (20 Replies)
Hi All
I would like to modify a file like this:
>antax gioq21 tris notes
abcdefghij
klmnopqrs
>betax gion32 ter notes2
tuvzabcdef
ahgskslsooin this:
>tris
abcdefghij
klmnopqrs
>ter
tuvzabcdef
ahgskslsoo
So, I would like to remove the first two fields(and output field 3) in record... (4 Replies)
Discussion started by: giuliangiuseppe
4 Replies
LEARN ABOUT DEBIAN
grib_get
GRIB_GET(1) User Commands GRIB_GET(1)NAME
grib_get - Get values of some keys from a grib file.
DESCRIPTION
Get values of some keys from a grib file. It is similar to grib_ls, but fails returning an error code when an error occurs (e.g. key not
found).
USAGE
grib_get [options] grib_file grib_file ...
OPTIONS -f Force. Force the execution not to fail on error.
-p key[:{s/d/l}],key[:{s/d/l}],...
Declaration of keys to print. For each key a string (key:s) or a double (key:d) or a long (key:l) type can be requested. Default
type is string.
-P key[:{s/d/l}],key[:{s/d/l}],...
As -p adding the declared keys to the default list.
-w key[:{s/d/l}]{=/!=}value,key[:{s/d/l}]{=/!=}value,...
Where clause. Grib messages are processed only if they match all the key/value constraints. A valid constraint is of type
key=value or key!=value. For each key a string (key:s) or a double (key:d) or a long (key:l) type can be specified. Default type is
string.
-V Version.
-W width
Minimum width of each column in output. Default is 10.
-M Multi-grib support off. Turn off support for multiple fields in single grib message
-G GRIBEX compatibility mode.
-7 Does not fail when the message has wrong length
AUTHOR
This manpage has been autogenerated by Enrico Zini <enrico@debian.org>from the command line help of grib_get.
grib_get April 2009 GRIB_GET(1)