What is the command to count lines in a files, but ignore blank lines and commented lines?
I have a file with 4 sections in it, and I want each section to be counted, not including the blank lines and comments... and then totalled at the end.
Here is an example of what I would like my... (6 Replies)
$ cat log.txt
Name Age Sex Lcation nfld alias xsd
CC 25 M XYZ asx KK Y
BB 21 F XAS awe SS N
SD 21 M AQW rty SD A
How can I replace the column with header "Lcation" with the column with header "alias" and delete the "alias" column?
so that the final output will become:
Name Age Sex... (10 Replies)
I have a data set that has 4 columns, I want to know if I can delete duplicate lines while ignoring one of the columns, for example
10 chr1 ASF 30
15 chr1 ASF 20
5 chr1 ASF 30
6 chr2 EBC 15
4 chr2 EBC 30
...
I want to know if I can delete duplicate lines while ignoring column 1, so the... (5 Replies)
Hi All,
I have a file example.csv which looks like this
GrpID,TargetID,Signal,Avg_Num
CSCH74_1_1,2007,61,256
CSCH74_1_1,212007,647,679
CSCH74_1_1,12007,3,32
CSCH74_1_1,207,299,777
I want the output as
GrpID,TragetID,Signal-CSCH74_1_1,Avg_Num
CSCH74_1_1,2007,61,256... (4 Replies)
Hi All,
I have a file example.csv which looks like this
GrpID,TargetID,Signal,Avg_Num
CSCH74_1_1,2007,61,256
CSCH74_1_1,212007,647,679
CSCH74_1_1,12007,3,32
CSCH74_1_1,207,299,777
I want the output as
GrpID,TragetID,Signal-CSCH74_1_1,Avg_Num
CSCH74_1_1,2007,61,256... (1 Reply)
Friends,
I need help with the following in UNIX.
Merge all csv files in one folder considering only 1 header row and ignoring header of all other files.
FYI - All files are in same format and contains same headers.
Thank you (4 Replies)
Hi,
I have an input like this
1 2 3 4
2 3 4 5
4 5 6 7
I would like to count the no. of columns and print a header with a prefix "Col".
I would also like to count the no. of rows and print as first column with each line number with a prefix "Row"
So, my output would be
... (2 Replies)
Hello,
I am trying to store sum of a column as a new column inside a file but have to find the column names dynamically
I/p
c1,c2,c3,c4,c5
10,20,30,40,50
20,30,40,50,60
If i want to find sum only column c1, c3 and output it as c6,c7
O/p
c1,c2,c3,c4,c5,c6,c7
10,20,30,40,50,30,70... (6 Replies)
I have a csv which has lot of columns . I was looking for an awk script which would extract a column twice. for the first occurance the header and data needs to be intact but for the second occurance i want to replace the header name since it a duplicate and extract year value which is in ddmmyy... (10 Replies)
I've been struggling with this one for quite a while and cannot seem to find a solution for this find/replace scenario. Perhaps I'm getting rusty.
I have a file that contains a number of metrics (exactly 3 fields per line) from a few appliances that are collected in parallel. To identify the... (3 Replies)
Discussion started by: verdepollo
3 Replies
LEARN ABOUT PHP
dbase_get_header_info
DBASE_GET_HEADER_INFO(3) 1 DBASE_GET_HEADER_INFO(3)dbase_get_header_info - Gets the header info of a databaseSYNOPSIS
array dbase_get_header_info (int $dbase_identifier)
DESCRIPTION
Returns information on the column structure of the given database link identifier.
PARAMETERS
o $dbase_identifier
- The database link identifier, returned by dbase_open(3) or dbase_create(3).
RETURN VALUES
An indexed array with an entry for each column in the database. The array index starts at 0.
Each array element contains an associative array of column information, as described here:
o name
- The name of the column
o type
- The human-readable name for the dbase type of the column (i.e. date, boolean, etc.)
o length
- The number of bytes this column can hold
o precision
- The number of digits of decimal precision for the column
o format
- A suggested printf(3) format specifier for the column
o offset
- The byte offset of the column from the start of the row
If the database header information cannot be read, FALSE is returned.
EXAMPLES
Example #1
Showing header information for a dBase database file
<?php
// Path to dbase file
$db_path = "/tmp/test.dbf";
// Open dbase file
$dbh = dbase_open($db_path, 0)
or die("Error! Could not open dbase database file '$db_path'.");
// Get column information
$column_info = dbase_get_header_info($dbh);
// Display information
print_r($column_info);
?>
PHP Documentation Group DBASE_GET_HEADER_INFO(3)