What shell? bash has some nifty features which make this easier. Since you're using [ for tests, I'll assume sh.
You cannot have multiple arguments in test. You need to loop over them, even if you only care about one.
in bash we can use some options so that globbing abc.* returns nothing if the files don't exist. using this and an array, we can simply count the elements returned:
Hi,
I have a script which will check the fiel existence, the lines are as below
if !(test -d ./data) then
mkdir data
fi
In the first line error occurs as below
generatelicense.sh: syntax error at line 2: `!' unexpected
Where as this script works fine in linux OS.
How to solve... (2 Replies)
Hi,
I would like to check the existence of files (doesn;t matter the number of files) in a directory.
My file is named in the following manner (always ending with " myfile "). Can anybody give me some guidance?
EG:
abc1_myfile
sdfr_myfile
sffgd_myfile
and so on ......
My... (9 Replies)
i can able to transfer a file from build server(AIX)to webserver using ksh through ftp.my query is to check the existence of file while transfering from one server to other .i.e i need some command or script that checks the existence of file with same name in both server,within ftp syntax.
... (1 Reply)
we have tranferred an ear from local server to remote server using ftp.consider, we have an ear file named a.ear in remote server,again if we transfer the same file named a.ear from local server to remote server.we need the kshell to check the existence of the ear file in remote server,and if the... (3 Replies)
Hello
I am having a requirement like if there is no file in the directory then i need a message to pop on after the execution of the script.
My script basically does for File in `ls -t $DIRECTORY | tail -1`;
if there is no file the DIRECTORY then the script is simply exiting with out... (2 Replies)
I have requirement where i need to search for files which start with SALESORDER and PURCHASEORDER. i need to process the files with SALESORDER first and then PURCHASEORDER. If SALESORDER files are not there i dont want to process PURCHASEORDER and i want to come out of script. I have written a code... (4 Replies)
i want to check if the file is in the directory or not, and also it should be handle error conditions, like missing files and report the error and exit.
i did something like this:
file ="hello"
if !test -e "${file}"
then echo "No such files exist!"
exit 1
else
do something.......
fi
... (1 Reply)
I am using the following command to check for files on a Unix (Solaris 9) and on Linux:
if (-r *.) then
echo " las file found"
else
echo " no las file found"
endif
If no las file is present, the "no las file found" message is displayed. If a las file is present, however, I get... (9 Replies)
Hi All.
Pls help me with the command to check existence of files (I'll mention name of the file as regex) and proceed with my further processing if atleast one of them exists
in detail,
I've a dir /tmp/TURP, which may or may not have files named with "exter*.txt"
I need to check and... (2 Replies)
I need to check for the existence of a file *.log in a specific directory using a perl script.
Presently am not in that particular directory.
So i am using chdir ("/path/to/my/file)
And then i am using the -e in an if statement to check if it exists.
if (-e $File) {......}
$File contains the... (1 Reply)
Discussion started by: manutd
1 Replies
LEARN ABOUT PHP
max
MAX(3) 1 MAX(3)max - Find highest valueSYNOPSIS
mixed max (array $values)
DESCRIPTION
mixed max (mixed $value1, mixed $value2, [mixed $...])
If the first and only parameter is an array, max(3) returns the highest value in that array. If at least two parameters are provided,
max(3) returns the biggest of these values.
Note
Values of different types will be compared using the standard comparison rules. For instance, a non-numeric string will be com-
pared to an integer as though it were 0, but multiple string values will be compared alphanumerically. The actual value returned
will be of the original type with no conversion applied.
PARAMETERS
o $values
- An array containing the values.
o $value1
- Any comparable value.
o $value2
- Any comparable value.
o $...
- Any comparable value.
RETURN VALUES max(3) returns the parameter value considered "highest" according to standard comparisons. If multiple values of different types evaluate
as equal (e.g. 0 and 'abc') the first provided to the function will be returned.
EXAMPLES
Example #1
Example uses of max(3)
<?php
echo max(2, 3, 1, 6, 7); // 7
echo max(array(2, 4, 5)); // 5
// The string 'hello' when compared to an int is treated as 0
// Since the two values are equal, the order they are provided determines the result
echo max(0, 'hello'); // 0
echo max('hello', 0); // hello
// Here we are comparing -1 < 0, so 'hello' is the highest value
echo max('hello', -1); // hello
// With multiple arrays of different lengths, max returns the longest
$val = max(array(2, 2, 2), array(1, 1, 1, 1)); // array(1, 1, 1, 1)
// Multiple arrays of the same length are compared from left to right
// so in our example: 2 == 2, but 5 > 4
$val = max(array(2, 4, 8), array(2, 5, 1)); // array(2, 5, 1)
// If both an array and non-array are given, the array will be returned
// as comparisons treat arrays as greater than any other value
$val = max('string', array(2, 5, 7), 42); // array(2, 5, 7)
// If one argument is NULL or a boolean, it will be compared against
// other values using the rule FALSE < TRUE regardless of the other types involved
// In the below example, -10 is treated as TRUE in the comparison
$val = max(-10, FALSE); // -10
// 0, on the other hand, is treated as FALSE, so is "lower than" TRUE
$val = max(0, TRUE); // TRUE
?>
SEE ALSO min(3), count(3).
PHP Documentation Group MAX(3)