Has anyone got a few tips on how I can test if the file size is 0?
I am moving files on a regular basis from one location to another with ftp. The files which are 0 bytes in size we want to discard.
Thankyou in advance. (3 Replies)
AIX 5.3 / KSH
I have a Java application which creates a log file a.log. I have a KSH script which does the following action
cp a.log /directory2/b.log
> a.log
After this the file size goes to 0 as per "ls -l"
Then next time when the application writes into this file, the file size... (4 Replies)
Hi All,
I am checking for a empty input file to do some further action , but I am getting exit status 0 in both the cases , for empty and non empty file both.
The value of $? is coming 0 in if part also and else part too.
#!/bin/ksh
if ]; then
echo "data"
# exit 0
echo "$?"
else... (4 Replies)
i have written this simple script called isdir.sh
#! /bin/bash
dir=$1
_ls=`ls $dir`
for file in $_ls
do
if
then
echo "D $file"
fi
donethe output is not right.
for example
$ ./isdir.sh src
***no output***
but i have in ~/src some directories
drwxr-xr-x 2... (5 Replies)
script name: filetest.sh
if ; then
echo " You didn't enter any argument"
elif ; then
echo " file not exist"
elif ; then
echo " file not readable"
elif ; then
echo " file not writable"
else
echo " file both readable and writable"
fi
running like...
$ ./filetest filename
... (3 Replies)
I am trying to test the output of a file. What I have so far is this:
if ]; then echo "yes";fi
The problem with this is it works but I only want it to print out if the file contains the word "Compacted." The == sign means identical or equal to so it won't work. I tried ~ but that doesn't... (4 Replies)
original post --
I have a korn shell script that does some things that depend on creating and writing a file in a directory. I'm looking for a more elegant/efficient way to do the check than what I'm using now:
if ]
then
print "Creating ${STGDIR}/${SHOW}"
mkdir... (3 Replies)
The below awk improved bu @MadeInGermany, works great as long as the input file has data in it in the below format:
input
chrX 25031028 25031925 chrX:25031028-25031925 ARX 631 18
chrX 25031028 25031925 chrX:25031028-25031925 ARX 632 14... (3 Replies)
Discussion started by: cmccabe
3 Replies
LEARN ABOUT PHP
substr_compare
SUBSTR_COMPARE(3) 1 SUBSTR_COMPARE(3)substr_compare - Binary safe comparison of two strings from an offset, up to length charactersSYNOPSIS
int substr_compare (string $main_str, string $str, int $offset, [int $length], [bool $case_insensitivity = false])
DESCRIPTION substr_compare(3) compares $main_str from position $offset with $str up to $length characters.
PARAMETERS
o $main_str
- The main string being compared.
o $str
- The secondary string being compared.
o $offset
- The start position for the comparison. If negative, it starts counting from the end of the string.
o $length
- The length of the comparison. The default value is the largest of the length of the $str compared to the length of $main_str
less the $offset.
o $case_insensitivity
- If $case_insensitivity is TRUE, comparison is case insensitive.
RETURN VALUES
Returns < 0 if $main_str from position $offset is less than $str, > 0 if it is greater than $str, and 0 if they are equal. If $offset is
equal to or greater than the length of $main_str, or the $length is set and is less than 1 (prior to PHP 5.6), substr_compare(3) prints a
warning and returns FALSE.
CHANGELOG
+--------+---------------------------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+---------------------------------------------------+
| 5.6.0 | |
| | |
| | $length may now be 0. |
| | |
| 5.1.0 | |
| | |
| | Added the possibility to use a negative $offset. |
| | |
+--------+---------------------------------------------------+
EXAMPLES
Example #1
A substr_compare(3) example
<?php
echo substr_compare("abcde", "bc", 1, 2); // 0
echo substr_compare("abcde", "de", -2, 2); // 0
echo substr_compare("abcde", "bcg", 1, 2); // 0
echo substr_compare("abcde", "BC", 1, 2, true); // 0
echo substr_compare("abcde", "bc", 1, 3); // 1
echo substr_compare("abcde", "cd", 1, 2); // -1
echo substr_compare("abcde", "abc", 5, 1); // warning
?>
SEE ALSO strncmp(3).
PHP Documentation Group SUBSTR_COMPARE(3)