I've got a bunch of files called oldabc, olddef etc.
i want to copy these to be abc, def....
I can do this with file extensions....but can get the logic to work for prefixes. All the files I am interested in have a prefix of 'old'.
This loop is no good for me....it looks at the content... (2 Replies)
I want to execute something like this:
find . -type f -regex '$REGEX' -print | xargs split -d -C $SIZE
The problem is that I want the name of the split files to be the same name as original files. So if my directory has two files called abc.txt and def.txt, then I want the split files to be... (1 Reply)
I am uploading files that need to be processed prior to uploading. I will put the files in a directory. My question is how can I write an easy process to kick off a script once a file has been added? Is there an easy way to determine if a file has been added to a directory?
Thanks (1 Reply)
I am uploading files that need to be processed prior to uploading. I will put the files in a directory. My question is how can I write an easy process to kick off a script once a file has been added? Is there an easy way to determine if a file has been added to a directory?
Thanks (7 Replies)
Hi all,
I have a requirement where in i have to create a temporary file by prefixing a string of special characters to each row of a input file.
the input file is '|' delimited.
here is the content of input file
aaa|1234|axad|123
bbb|qwqw|qw|1334
the output should be
... (5 Replies)
Hi,
I have a file abcd.txt which in turn contains 20 file names as column 1.
Now I want to run a command "ct co -nc" / "cp" / "mv" on each of these $1 column content i.e. on each of the 20 file names.
How can do this using a script so that I need not run the same command 20 times... (13 Replies)
Hi all,
I have a question..
Here is my requirement..I have 500 files in a path say /a/b/c
I have some numbers in a file which are comma seperated...and I wanted to check if the numbers are present in the FileName in the path /a/b/c..if the number is there in the file that is fine..but if... (1 Reply)
I would like help adding a new column to a large txt file (~10MB) that contains the filename. I have searched other posts but have not found an adequate solution.
I need this extra column so I can concatenate >100 files and perform awk searches on this large file.
My current txt file look... (4 Replies)
I am attempting to grep an exact string from a series of files within a directory and append that output to the filename when it is present in the file. I've been after this all day with no luck. Thanks for your help in advance :wall:. (4 Replies)
In a bash shell, I have to prefix a variable to two .CSV files File1.CSV and File2.CSV. One of the files has a header and the other one is with no header in the below format:
"value11","value12","value13","value14","value15","value16"
"value21","value22","value23","value24","value25","value26"... (7 Replies)
Discussion started by: dhruuv369
7 Replies
LEARN ABOUT DEBIAN
alzabo::runtime::index
Alzabo::Runtime::Index(3pm) User Contributed Perl Documentation Alzabo::Runtime::Index(3pm)NAME
Alzabo::Runtime::Index - Index objects
SYNOPSIS
use Alzabo::Runtime::Index;
DESCRIPTION
This object represents an index on a table. Indexes consist of columns and optional prefixes for each column. The prefix specifies how
many characters of the columns should be indexes (the first X chars). Some RDBMS's do not have a concept of index prefixes. Not all col-
umn types are likely to allow prefixes though this depends on the RDBMS. The order of the columns is significant.
INHERITS FROM
"Alzabo::Index"
Note: all relevant documentation from the superclass has been merged into this document.
METHODS
columns
Returns an ordered list of the "Alzabo::Runtime::Column" objects that are being indexed.
prefix ("Alzabo::Runtime::Column" object)
A column prefix is, to the best of my knowledge, a MySQL specific concept, and as such cannot be set when using an RDBMSRules module for a
different RDBMS. However, it is important enough for MySQL to have the functionality be present. It allows you to specify that the index
should only look at a certain portion of a field (the first N characters). This prefix is required to index any sort of BLOB column in
MySQL.
This method returns the prefix for the column in the index. If there is no prefix for this column in the index, then it returns undef.
unique
Returns a boolean value indicating whether the index is a unique index.
fulltext
Returns a boolean value indicating whether the index is a fulltext index.
function
For function indexes, this returns the function being indexed.
id
The id is generated from the table, column and prefix information for the index. This is useful as a canonical name for a hash key, for
example.
Returns a string that is the id which uniquely identifies the index in this schema.
table
Returns the "Alzabo::Runtime::Table" object to which the index belongs.
AUTHOR
Dave Rolsky, <autarch@urth.org>
perl v5.8.8 2007-12-23 Alzabo::Runtime::Index(3pm)