If your system supports the -A option for grep, you could try something like this (I'm assuming that the records are stored in a file called file.txt, which does not contain the actual header "name,telno..", only the records):
Code:
#!/bin/bash
#copy the content of file.txt to a temporary file
cat file.txt > tmp.txt
#get today's month and day
today=`date +%m'/'%d`
#insert a dummy row, with todays date and time in the temporary file
dummy="test 0,123456789,1800/$today"
echo "$dummy" >> tmp.txt
#sort the file by month and day and output to another temp file
sort -t'/' -k2,3 tmp.txt > tmp2.txt
#no of birthdays today, apart from the dummy row
matches_today=`grep "$today" tmp2.txt | grep -v "$dummy" | wc -l`
#if there are no matches for today, check to see if the dummy is the last record;
#if it is the next birthday is top of the list, otherwise it's the next row; otherwise,
#if there are matches for today echo them
if test $matches_today -eq 0
then
if test "`tail -1 tmp2.txt`" == "$dummy"
then
echo "`head -1 tmp2.txt`"
else
echo "`grep -A1 "$dummy" tmp2.txt | grep -v "$dummy"`"
fi
else
echo "`grep "$today" tmp2.txt | grep -v "$dummy"`"
fi
This is not optimally organized obviously, but I'm writting in a hurry
I'm trying to figure out how to display a certain line in a text file. I keep getting references to Tail and Head, and I know how these work, but i'm lost on how to find say the third out of the five lines and display only that.
I thought maybe grep could help, but that doesn't seem likely.
... (3 Replies)
How can I get and display the last modification time of a file? in scripting or specifically using Batch file
I want this info for me to determine whether an image has been edited or not by using the last modification time and compare it to our stored date of modification.
can somebody help... (5 Replies)
are there any basic commands that can display lines 99 - 101 of the /etc/passwd file?
I'm thinking use of head and tail, but I forget what numbers to use and where to put /etc/passwd in the command. (2 Replies)
Hi,
I am using below command to display the number of line, but its returning no of lines along with file name.
But i want only no of line in the variable p.
Please help me on this?
p=`wc -l "text file"`
echo "$p" (6 Replies)
Hi, I'm just wondering how you display a specific set of columns of a specified file in Unix. For example, if you had an AddressBook file that stores the Names, Phone numbers, and Addresses of people the user entered in the following format (the numbers are just to give an idea of what column... (1 Reply)
Howdy.
I know this is most likely possible using sed or awk or grep, most likely a combination of them together, but how would one go about running a grep like command on a file where you only try to match your pattern to the second field in a line, space delimited?
Example:
You are... (3 Replies)
Hello
Wondering if anybody may be able to advise on how I can filter the contents of the following file:
<object_name>-<version> <Instance>
GM_GUI_code.fmb-4 1
GM_GUI_code.fmb-5 1
GM_GUI_code.fmx-4 ... (7 Replies)
So I work in a 1 to 1 laptop deployment and sometimes we need to mass order parts. The vendor will send us a text file and we have to manually input serial numbers. Well I have a full blown web based inventory system which I can pull serial number reports from.
I then have to input the part... (4 Replies)
This could be a really dummy question.
I have a log text file.
What unix command to extract line from specific string to another specific string.
Is it something similar to?:
more +/"string" file_name
Thanks (4 Replies)
Hi..
I need some help in converting the below horizontal lines to vertical lines format.
can anyone help me on this.
input file
Hour,1,2,3,4,5
90RT,106,111,111,112,111
output file
Hour,90RT
1,106
2,111
3,111
4,112
5,111 (3 Replies)
Discussion started by: Raghuram717
3 Replies
LEARN ABOUT PHP
stream_copy_to_stream
STREAM_COPY_TO_STREAM(3) 1 STREAM_COPY_TO_STREAM(3)stream_copy_to_stream - Copies data from one stream to anotherSYNOPSIS
int stream_copy_to_stream (resource $source, resource $dest, [int $maxlength = -1], [int $offset])
DESCRIPTION
Makes a copy of up to $maxlength bytes of data from the current position (or from the $offset position, if specified) in $source to $dest.
If $maxlength is not specified, all remaining content in $source will be copied.
PARAMETERS
o $source
- The source stream
o $dest
- The destination stream
o $maxlength
- Maximum bytes to copy
o $offset
- The offset where to start to copy data
RETURN VALUES
Returns the total count of bytes copied.
CHANGELOG
+--------+------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+------------------------------+
| 5.1.0 | |
| | |
| | Added the $offset parameter |
| | |
+--------+------------------------------+
EXAMPLES
Example #1
A stream_copy_to_stream(3) example
<?php
$src = fopen('http://www.example.com', 'r');
$dest1 = fopen('first1k.txt', 'w');
$dest2 = fopen('remainder.txt', 'w');
echo stream_copy_to_stream($src, $dest1, 1024) . " bytes copied to first1k.txt
";
echo stream_copy_to_stream($src, $dest2) . " bytes copied to remainder.txt
";
?>
SEE ALSO copy(3).
PHP Documentation Group STREAM_COPY_TO_STREAM(3)
02-03-2010
