I am often given log files at work in .csv format to work with, normally extracting various fields. I then have to figure out the number of each field so that I can extract that field with cut or awk. Normally I just manually count the fields, based on the field separator. I would like to be able to take a line from the file and list the contents of each field along with the number of a field. Thus having the line of a file, such as:
I would like to see the output as:
I can then quickly see the columns that I need to extract.
I am aware of the "column" command, but often the files I have contain too many columns for this command to work.
Does any one know how to get a recursive directory listing in long format (showing owner, group, permission etc) without listing the files contained in the directories.
The following command also shows the files but I only want to see the directories.
ls -lrtR * (4 Replies)
I am brand new to Unix. This is probably simple, but how do you list the contents of a shared library? I need to see which functions exist in it.
Many thanks. (1 Reply)
How would I find three different fields in a data file such as first name, last name, credit card number in a particular file?
Thanks in advance for your help (3 Replies)
Hello guys,
I am having a requirement,
I am having three file m1,m2,m3 having some contents. I want to list last 20 lines of m1,m2 and m3 all together on the terminal.
I used tail -20 m1 m2 m3,
but it is showing error,
tail: option used in invalid context -- 2
Can u help me... (2 Replies)
Hi fellows,
Can you please share any command with which I can list down the file names inside a tar.gz file.
I have tried with these possibilities but in vain.
bash-3.00$ tar -ztvf file.tar.gz
tar: z: unknown function modifier
bash-3.00$ tar ztvf file.tar.gz
tar: z: unknown function... (1 Reply)
Hi All,
Could you please help to resolve my following issues:
Problem Description:
Suppose my user name is "MI90".
i.e. $USER = MI90
when i run below command, i get all the processes running on the system containing name MQ.
ps -ef | grep MQ
But sometimes it lists... (8 Replies)
Hi one of the output of the command is as below
# sed -n "/CCM-ResourceHealthCheck:/,/---------/{/CCM-ResourceHealthCheck:/d;/---------/d;p;}" Automation.OutputZ$zoneCounter | sed 's/$/<br>/'
Resource List : <br>
*************************** 1. row ***************************<br>
... (2 Replies)
Hi,
We are taking our filesystem backup having size of 1.3 TB on LTO5 catridges using the following command
find * -print|backup -ivf '/dev/rmt0' '-U'
i.e backup byname and it took about 6.5 Hours to complete When we are listing same tape contents using the following command
restore... (1 Reply)
Hi All,
I would like to know couple of ways to list the content available in tar and gzipped file without extracting.
i.e., I would like to display the contents of test.tar.gz without extracting.
Note :: please suggest a command other that tar -ztvf (9 Replies)
Hi All
I have a file which contains the timestamp of the log and a message and I want to implement a polling mechanism, where this log file is pooled every 2 minutes and list the errors in the file. I want to list down the errors only after the timestamp in the file is more than the current... (2 Replies)
Discussion started by: infyanurag
2 Replies
LEARN ABOUT PHP
array_flip
ARRAY_FLIP(3) 1 ARRAY_FLIP(3)array_flip - Exchanges all keys with their associated values in an arraySYNOPSIS
array array_flip (array $array)
DESCRIPTION array_flip(3) returns an array in flip order, i.e. keys from $array become values and values from $array become keys.
Note that the values of $array need to be valid keys, i.e. they need to be either integer or string. A warning will be emitted if a value
has the wrong type, and the key/value pair in question will not be included in the result.
If a value has several occurrences, the latest key will be used as its value, and all others will be lost.
PARAMETERS
o $array
- An array of key/value pairs to be flipped.
RETURN VALUES
Returns the flipped array on success and NULL on failure.
EXAMPLES
Example #1
array_flip(3) example
<?php
$input = array("oranges", "apples", "pears");
$flipped = array_flip($input);
print_r($flipped);
?>
The above example will output:
Array
(
[oranges] => 0
[apples] => 1
[pears] => 2
)
Example #2
array_flip(3) example : collision
<?php
$input = array("a" => 1, "b" => 1, "c" => 2);
$flipped = array_flip($input);
print_r($flipped);
?>
The above example will output:
Array
(
[1] => b
[2] => c
)
SEE ALSO array_values(3), array_keys(3), array_reverse(3).
PHP Documentation Group ARRAY_FLIP(3)