Hi,
I remember once seeing a way to get the left most string in a word.
Let's say: a="First.Second.Third" (separated by dot)
echo ${a#*.} shows --> Second.Third
echo ${a##*.} shows --> Third
How do I get the the left most string "First" Or "First.Second" ???
Tried to replace #... (2 Replies)
Hi guys,
I am not very experienced in writing ksh scripts and I am trying to write a piece of code that indicates if a given string contains only digits and no alphabet (upper or lower case). If i write it my way it would turn out to have a lot of comparisons.. :eek:
Thanks a lot in... (3 Replies)
Hi Experts,
I have called some.txt with the following content.
oracle HYRDSRVIHUB01 pts/0 TESTIHUB 07-JUN-10 CREATE TABLE
TESTIHUB PHONE ... (12 Replies)
I would like to search between two a string. I thought this would be easy. The is always at the beginning of a line.
The code:
gawk '/^/{d=$1},/searchstring/,/^(d+1)/'
or
gawk '/^/,/searchstring/,/^/'
did not return the desired result.
inputfile.txt
999 some text searchstring some... (6 Replies)
I have a awk file which consists of the follwoing code in file select.awk :
/xxx/ {
time = gensub(/xxx \*\*\*(.*)/, "\\1", "g")
printf("%s\n",time)
next
}
and an input file with the following file file.txt :-
xxx ***Wed May 2 18:00:00 CDT 2012
AAA AAAA AAAA xxx... (4 Replies)
Hi Guys,
I want to search for a specific file in a directory which have a "b" letter as the 3rd character in the name of the file.
For Example :
/abc/efg/ldbjfblkj.sh
/abc/efg/erublkd.sh
/abc/efg/eibueora.sh
/abc/efg/kfvnmnb.sh
Since we have 2 files with "b" as a 3rd character in... (5 Replies)
hello
i have file with 100k records and each one has certain value that starts at 28th column and certain value that starts at 88th column
e.g. 1st file
<25>1234567 ..... <88> 8573785485
i have aditional file with values which are related to value that starts at 88th column of the... (1 Reply)
Hello,
I have a log file with logs such as
01/05/2017 10:23:41 : file.log.38: database error, MODE=SINGLE, LEVEL=critical, STATE: 01170255 (mode main
how can i use perl to extract the 8-digit number below from the string
01170255
Thanks (7 Replies)
Discussion started by: james2009
7 Replies
LEARN ABOUT PHP
ctype_alnum
CTYPE_ALNUM(3) 1 CTYPE_ALNUM(3)ctype_alnum - Check for alphanumeric character(s)SYNOPSIS
bool ctype_alnum (string $text)
DESCRIPTION
Checks if all of the characters in the provided string, $text, are alphanumeric.
PARAMETERS
o $text
- The tested string.
RETURN VALUES
Returns TRUE if every character in $text is either a letter or a digit, FALSE otherwise.
EXAMPLES
Example #1
A ctype_alnum(3) example (using the default locale)
<?php
$strings = array('AbCd1zyZ9', 'foo!#$bar');
foreach ($strings as $testcase) {
if (ctype_alnum($testcase)) {
echo "The string $testcase consists of all letters or digits.
";
} else {
echo "The string $testcase does not consist of all letters or digits.
";
}
}
?>
The above example will output:
The string AbCd1zyZ9 consists of all letters or digits.
The string foo!#$bar does not consist of all letters or digits.
NOTES
Note
If an integer between -128 and 255 inclusive is provided, it is interpreted as the ASCII value of a single character (negative val-
ues have 256 added in order to allow characters in the Extended ASCII range). Any other integer is interpreted as a string contain-
ing the decimal digits of the integer.
SEE ALSO ctype_alpha(3), ctype_digit(3), setlocale(3).
PHP Documentation Group CTYPE_ALNUM(3)