10 More Discussions You Might Find Interesting
1. UNIX for Beginners Questions & Answers
Hi All,
I am trying to replace a certain value from one place in a file . In the below file at position 35 I will have 8 I need to modify all 8 in that position to 7
I tried
awk '{gsub("8","7",$35)}1' infile > outfile ----> not working
sed -i 's/8/7'g' infile --- it is replacing all... (3 Replies)
Discussion started by: arunkumar_mca
3 Replies
2. UNIX for Advanced & Expert Users
From googling and reading man pages I figured out this sorts the first column by numeric values.
sort -g -k 1,1
Why does the -n option not work? The man pages were a bit confusing.
And what if I want to sort the second column numerically? I haven't been able to figure that out. The file... (7 Replies)
Discussion started by: cokedude
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3. Shell Programming and Scripting
Hi,
My input file
Gene1 1
Gene1 2
Gene1 3
Gene1 0
Gene2 0
Gene2 0
Gene2 4
Gene2 8
Gene3 9
Gene3 9
Gene4 0
Condition:
If the first column matches, then look in the second column. If there is a value of zero in the second column, then don't consider that record while averaging.
... (5 Replies)
Discussion started by: jacobs.smith
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4. Shell Programming and Scripting
I have a file that looks like this:
id window BV
1 1 0.5
1 2 0.2
1 3 0.1
2 1 0.5
2 2 0.1
2 3 0.2
3 1 0.4
3 2 0.6
3 3 0.8
Using awk, how would I get the average BV for window 1? Output like this:
window avgBV
1 0.47
2 0.23 (10 Replies)
Discussion started by: jwbucha
10 Replies
5. Shell Programming and Scripting
I have file1.txt
LBP298W2,300,-18,-115,-12,-105
LBP298W2,300,-18,-115,LBP298W3,300
LBP298W3,300,-18,-115,-12,-105---------- Post updated at 03:35 AM ---------- Previous update was at 03:34 AM ----------
i want to remove every line with non numeric value in column 5
expected result
... (4 Replies)
Discussion started by: radius
4 Replies
6. Shell Programming and Scripting
Hi,
I would like to calculate the average of column 'y' based on the value of column 'pos'.
For example, here is file1
id pos y c
11 1 220 aa
11 4333 207 f
11 5333 112 ee
11 11116 305 e
11 11117 310 r
11 22228 781 gg
11 ... (2 Replies)
Discussion started by: jackken007
2 Replies
7. Shell Programming and Scripting
Dear All,
I have this file tab delimited
A 1 12 22
B 3 34 33
C 55 9 32
A 12 81 71
D 11 1 66
E 455 4 2
B 89 4 3
I would like to make the average every column where the first column is the same, for example,
A 6,5 46,5 46,5
B 46,0 19,0 18,0
C 55,0 9,0 32,0
D 11,0 1,0 66,0... (8 Replies)
Discussion started by: paolo.kunder
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8. Shell Programming and Scripting
Hi,
I want to know, how we find out if a column is having a numeric value or not.
For Example if we have a csv file as
ASDF,QWER,GHJK,123,FGHY,9876
GHTY,NVHR,WOPI,623,HFBS,5386
we need to find out if the 4th and 6th column has muneric value or not.
Thanks in advance
Keerthan (9 Replies)
Discussion started by: keerthan
9 Replies
9. UNIX for Dummies Questions & Answers
Hello,
Is there a quick way to compute the average of a column data in a numerical tab delimeted file?
Thanks,
Gussi (2 Replies)
Discussion started by: Gussifinknottle
2 Replies
10. UNIX for Dummies Questions & Answers
Hi I have fakebook.csv as following:
F1(current date) F2(popularity) F3(name of book) F4(release date of book)
2006-06-21,6860,"Harry Potter",2006-12-31
2006-06-22,,"Harry Potter",2006-12-31
2006-06-23,7120,"Harry Potter",2006-12-31
2006-06-24,,"Harry Potter",2006-12-31... (0 Replies)
Discussion started by: onthetopo
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Alzabo::Column(3pm) User Contributed Perl Documentation Alzabo::Column(3pm)
NAME
Alzabo::Column - Column objects
SYNOPSIS
use Alzabo::Column;
foreach my $c ($table->columns)
{
print $c->name;
}
DESCRIPTION
This object represents a column. It holds data specific to a column.
METHODS
table
Returns the table object to which this column belongs.
name
Returns the column's name as a string.
nullable
Returns a boolean value indicating whether or not NULLs are allowed in this column.
attributes
A column's attributes are strings describing the column (for example, valid attributes in MySQL are 'UNSIGNED' or 'ZEROFILL'.
This method returns a list of strings of such strings.
has_attribute
This method can be used to test whether or not a column has a particular attribute. By default, the check is case-insensitive.
It takes the following parameters:
* attribute => $attribute
* case_sensitive => 0 or 1 (defaults to 0)
It returns a boolean value indicating whether or not the column has this particular attribute.
type
Returns the column's type as a string.
sequenced
The meaning of a sequenced column varies from one RDBMS to another. In those with sequences, it means that a sequence is created and that
values for this column will be drawn from it for inserts into this table. In databases without sequences, the nearest analog for a
sequence is used (in MySQL the column is given the AUTO_INCREMENT attribute, in Sybase the identity attribute).
In general, this only has meaning for the primary key column of a table with a single column primary key. Setting the column as sequenced
means its value never has to be provided to when calling "Alzabo::Runtime::Table->insert".
Returns a boolean value indicating whether or not this column is sequenced.
default
Returns the default value of the column as a string, or undef if there is no default.
default_is_raw
Returns true if the default is intended to be provided to the DBMS as-is, without quoting, fore example "NOW()" or "current_timestamp".
length
Returns the length attribute of the column, or undef if there is none.
precision
Returns the precision attribute of the column, or undef if there is none.
is_primary_key
Returns a boolean value indicating whether or not this column is part of its table's primary key.
is_numeric
Returns a boolean value indicating whether the column is a numeric type column.
is_integer
Returns a boolean value indicating whether the column is a numeric type column.
is_floating_point
Returns a boolean value indicating whether the column is a numeric type column.
is_character
Returns a boolean value indicating whether the column is a character type column.
This is true only for any columns which are defined to hold text data, regardless of size.
is_date
Returns a boolean value indicating whether the column is a date type column.
is_datetime
Returns a boolean value indicating whether the column is a datetime type column.
is_time
Returns a boolean value indicating whether the column is a time type column.
is_time_interval
Returns a boolean value indicating whether the column is a time interval type column.
is_blob
Returns a boolean value indicating whether the column is a blob column.
This is true for any columns defined to hold binary data, regardless of size.
generic_type
This methods returns one of the following strings:
integer
floating_point
character
date
datetime
time
blob
unknown
definition
The definition object is very rarely of interest. Use the "type()" method if you are only interested in the column's type.
This methods returns the "Alzabo::ColumnDefinition" object which holds this column's type information.
comment
Returns the comment associated with the column object, if any.
AUTHOR
Dave Rolsky, <autarch@urth.org>
perl v5.8.8 2007-12-23 Alzabo::Column(3pm)