07-20-2012
file command uses (/etc/magic or /usr/share/magic or /usr/share/file/magic) and reads the first few bytes of the file. It then tries to decode The first n bytes and then does a lookup on those bytes in the magic file. The text you see is in the magic file.
The size of n depends on the OS.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
how do I feed output of "wc" to a shell script variable "countBcp"? (2 Replies)
Discussion started by: devy
2 Replies
2. Shell Programming and Scripting
in "cmd" command i want to copy the ouput of the command excuted to a particular file in a directory.
How to do this..??
Ex : $telnet->cmd(String => 'allip:acl=a1;',Prompt => '/</');
i want to copy o/p of the command "allip:acl=a1;" in a log file in a particular directory.
Plz suggest.. (1 Reply)
Discussion started by: sudhakaryadav
1 Replies
3. Shell Programming and Scripting
Hello,
I need help with the eval command.
I have been building a lengthy cmd using eval, and I need to create $var from the output of the cmd. Here is what I have.
Out=/dfezz1/output.txt
Node="'LPAR Info:'"
Gr3p0=" |grep"
Printc=" prtconf"
Output1=" 1>>$Out 0>&1"
Cat1="cat... (8 Replies)
Discussion started by: dfezz1
8 Replies
4. Shell Programming and Scripting
Hi,
I have line in input file as below:
3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL
My expected output for line in the file must be :
"1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL"
Can someone... (7 Replies)
Discussion started by: shis100
7 Replies
5. Shell Programming and Scripting
Hi everybody;
I try to code a script perl to list all services that are active "ON" with a chkconfig -- list
the problem is that code list all services which are active or not.
#!/usr/bin/perl
use strict;
use warnings;
open(FILE,"-|") || exec "chkconfig --list |grep ON";... (2 Replies)
Discussion started by: bassma
2 Replies
6. Shell Programming and Scripting
Hi guys,
I have a shell script where I have the following:
for i in ad0 ad1
do
gpart create -s gpt $i || echo "Cannot create GPT partition on "$i". Exiting ..."
gpart add -s 128 -t freebsd-boot $i || echo "Cannot add freebsd-boot partition on "$i". Exiting ..."
gpart add -s 4G -t... (2 Replies)
Discussion started by: da1
2 Replies
7. Shell Programming and Scripting
Hello,
There's a third-party application's command that shows the application's status like "tail -f verybusy.log". When use the command, the output comes every 1-sec. but when it goes in a script below the output comes every 8-sec...What is the problem and how can I fix it?
open(CMD,... (2 Replies)
Discussion started by: Shawn, Lee
2 Replies
8. Shell Programming and Scripting
Hi All,
I am new here but I have a scripting question that I can't seem to figure out with the "find" cmd.
What I am trying to do is to only have to run a single find cmd parsing the directories and output the different file types to induvidual files and I have been running into problems.... (3 Replies)
Discussion started by: swaters
3 Replies
9. UNIX for Dummies Questions & Answers
How to use "mailx" command to do e-mail reading the input file containing email address, where column 1 has name and column 2 containing “To” e-mail address
and column 3 contains “cc” e-mail address to include with same email.
Sample input file, email.txt
Below is an sample code where... (2 Replies)
Discussion started by: asjaiswal
2 Replies
10. Shell Programming and Scripting
Hello.
System : opensuse leap 42.3
I have a bash script that build a text file.
I would like the last command doing :
print_cmd -o page-left=43 -o page-right=22 -o page-top=28 -o page-bottom=43 -o font=LatinModernMono12:regular:9 some_file.txt
where :
print_cmd ::= some printing... (1 Reply)
Discussion started by: jcdole
1 Replies
LEARN ABOUT PHP
finfo_open
FINFO_OPEN(3) 1 FINFO_OPEN(3)
finfo_open - Create a new fileinfo resource
Procedural style
SYNOPSIS
resource finfo_open NULL ([int $options = FILEINFO_NONE], [string $magic_file])
DESCRIPTION
Object oriented style (constructor): finfo::__construct NULL ([int $options = FILEINFO_NONE], [string $magic_file])
This function opens a magic database and returns its resource.
PARAMETERS
o $options
- One or disjunction of more Fileinfo constants.
o $magic_file
- Name of a magic database file, usually something like /path/to/magic.mime. If not specified, the MAGIC environment variable is
used. If the environment variable isn't set, then PHP's bundled magic database will be used. Passing NULL or an empty string will
be equivalent to the default value.
RETURN VALUES
(Procedural style only) Returns a magic database resource on success or FALSE on failure.
NOTES
Warning
The expected magic database format changed in PHP 5.3.11 and 5.4.1. Due to this, the internal magic database was upgraded. This
mostly effects code where an external magic database is used: reading an older magic file will now fail. Also, some textual repre-
sentations of the mime types has changed, for instance for PHP would be "PHP script, ASCII text" instead of "PHP script text"
returned.
Note
Generally, using the bundled magic database (by leaving $magic_file and the MAGIC environment variables unset) is the best course
of action unless you specifically need a custom magic database.
EXAMPLES
Example #1
Object oriented style
<?php
$finfo = new finfo(FILEINFO_MIME, "/usr/share/misc/magic"); // return mime type ala mimetype extension
/* get mime-type for a specific file */
$filename = "/usr/local/something.txt";
echo $finfo->file($filename);
?>
Example #2
Procedural style
<?php
$finfo = finfo_open(FILEINFO_MIME, "/usr/share/misc/magic"); // return mime type ala mimetype extension
if (!$finfo) {
echo "Opening fileinfo database failed";
exit();
}
/* get mime-type for a specific file */
$filename = "/usr/local/something.txt";
echo finfo_file($finfo, $filename);
/* close connection */
finfo_close($finfo);
?>
The above example will output:
text/plain; charset=us-ascii
SEE ALSO
finfo_close(3).
PHP Documentation Group FINFO_OPEN(3)