Hate to beat a dead horse, but with regards terminal capabilities, it's still "better" to not hardcode terminal specifics but to query and use terminal capabilities (e.g. from terminfo database).
As long as all he's doing is colors it ought to be just fine.
---------- Post updated at 02:31 PM ---------- Previous update was at 02:27 PM ----------
You should use -v for setting outside variables in awk.
Hello all
I wander if I make for example " ls -l "
And it gives me all the files in the directory with the additional info like data size and privileges
But what if I like to filter the stout result for example by date
When I try to do:
echo "`ls -l`" | grep "Jan 12"
it gives me the... (2 Replies)
Hi All,
I have created a Unix Shell script whch creates a *.csv file and export it to Excel.
The problem i am facing is that Users wants one of the AMOUNT field in comma separted values. Example :
if the Amount has the value as 3000000 User wants to be in 3,000,000 format.
This Amount format... (2 Replies)
I have a function called sysLogger in a bash script that I am using to redirect stdout and stderr to syslog.
Part of the script contains an option to turn on debugging otherwise I want debugging output to go to /dev/null.
I am struggling to understand how to make this work using the function... (10 Replies)
Hi,
I am having couple of files which i used to copy from windows to Linux, so now in case of text files (CTRL^M) appears at end of line. I know i can convert this windows format file to unix format file by running dos2unix.
My requirement here is that i want to do it automatically using a... (5 Replies)
should be the simplest thing in the world use grep
but i not get it
i have several files, in this files i need to khow how many times the words are repeated but the files must star whit P_
this work
egrep -c "word1|word2" *P_*
result:
P_11351814:1
P_11351823:3
P_11351826:1... (2 Replies)
Hi, I am trying to write the simplest network driver that would send whatever through cable.
My configuration is:
Linux machine with some Intel network adapter
Another machine with WireShark
I connected Intel network adapter to second machine and want anything to pop up at wireshark.
... (12 Replies)
I'm not a Linux newbie but this seemed like a pretty n00b question. I am familiar with Postfix/Dovecot setups but now I am looking for the simplest way to access mail on a Linux system, such as the mail that goes to /var/mail/root. I know I can edit /etc/aliases and have the system mail go straight... (6 Replies)
Discussion started by: TayKimchi
6 Replies
LEARN ABOUT PHP
is_string
IS_STRING(3) 1 IS_STRING(3)is_string - Find whether the type of a variable is stringSYNOPSIS
bool is_string (mixed $var)
DESCRIPTION
Finds whether the type given variable is string.
PARAMETERS
o $var
- The variable being evaluated.
RETURN VALUES
Returns TRUE if $var is of type string, FALSE otherwise.
EXAMPLES
Example #1
is_string(3) example
<?php
$values = array(false, true, null, 'abc', '23', 23, '23.5', 23.5, '', ' ', '0', 0);
foreach ($values as $value) {
echo "is_string(";
var_export($value);
echo ") = ";
echo var_dump(is_string($value));
}
?>
The above example will output:
is_string(false) = bool(false)
is_string(true) = bool(false)
is_string(NULL) = bool(false)
is_string('abc') = bool(true)
is_string('23') = bool(true)
is_string(23) = bool(false)
is_string('23.5') = bool(true)
is_string(23.5) = bool(false)
is_string('') = bool(true)
is_string(' ') = bool(true)
is_string('0') = bool(true)
is_string(0) = bool(false)
SEE ALSO is_float(3), is_int(3), is_bool(3), is_object(3), is_array(3).
PHP Documentation Group IS_STRING(3)