Ok. Then you can use "[[ ... ]]" construction. Inside brackets you can use < and > without backslashes for string comparisons and &&, || as boolean operator without additional brackets. So:
1. It's a very good habit to use double quotes around variables. Sometimes you must not use them but it is the special case - when a variable emulates an array.
2. And you don't need use quotes around "barewords" - in shell everything is strings. You can but you shouldn't because of
3. Your 0 is a string really and you don't perform any arithmetic operations. So just use bash string comparison operators: "<" ">" "!=" and "==". And if you want to use quotes around string literal, then use them around zero too (but you really shouldn't - it's just leads to confusion).
4. Double quotes around variables are not to convert them to strings but just save possible spaces inside their values.
Hi,
I trying to find the solution for writing the programming in unix by shell programming for sorting thr string in alphabetical order.
I getting diffculty in that ,, so i want to find out the solution for that
Please do needful
Thanks
Bhagyesh (1 Reply)
echo $TEMP|grep ""
I want to check TEMP is alphabetic or not in both the cases.but in above script i am getting 1($?) if TEMP is in pure lower case or pure upper case.i want to get 0($?) when TEMP would be alphabetic in either cases.pleaaaase help me out..... (4 Replies)
Hi all,
I So, I've got a monster text document comprising a list of various company names and associated info just in a long list one after another. I need to sort them alphabetically by name...
The text document looks like this:
Company Name:
the_first_company's_name_here
Address:... (2 Replies)
Hi everyone!
I am new to the forum and have recently started working with Linux.
Quick question, I want a user list in alphabetical order as the output of a shell script.
Who can help me!?
Thanks!
From the netherlands ;) (5 Replies)
I've looking over a script for work and I've had a problem with the script not listing the files in alphabetical order. To look up PIDs for apps, it would be beneficial to have them listed in that order. Here is what I've been reviewing.
#!/usr/bin/perl
$str = sprintf "%4s %-40s", "PID",... (7 Replies)
Hi, need help in sorting lines between strings "<section status = “ole-service”>" and "</section>" in alphabetical order, based on the text in red. Hoping for an AWK or SED solution. Thank you.
...
<section status = “ole-service”>...
<p service = "OOO">XZZ</p>
<p service = "AAA">AAA... (3 Replies)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
Write a shell script program to count the ONLY the number of alphabetic characters stored in the shell variable... (1 Reply)
Discussion started by: kofine05
1 Replies
LEARN ABOUT PHP
ctype_alpha
CTYPE_ALPHA(3) 1 CTYPE_ALPHA(3)ctype_alpha - Check for alphabetic character(s)SYNOPSIS
bool ctype_alpha (string $text)
DESCRIPTION
Checks if all of the characters in the provided string, $text, are alphabetic. In the standard C locale letters are just [A-Za-z] and
ctype_alpha(3) is equivalent to (ctype_upper($text) || ctype_lower($text)) if $text is just a single character, but other languages have
letters that are considered neither upper nor lower case.
PARAMETERS
o $text
- The tested string.
RETURN VALUES
Returns TRUE if every character in $text is a letter from the current locale, FALSE otherwise.
EXAMPLES
Example #1
A ctype_alpha(3) example (using the default locale)
<?php
$strings = array('KjgWZC', 'arf12');
foreach ($strings as $testcase) {
if (ctype_alpha($testcase)) {
echo "The string $testcase consists of all letters.
";
} else {
echo "The string $testcase does not consist of all letters.
";
}
}
?>
The above example will output:
The string KjgWZC consists of all letters.
The string arf12 does not consist of all letters.
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_upper(3), ctype_lower(3), setlocale(3).
PHP Documentation Group CTYPE_ALPHA(3)