Say I write something like the following:
var1=1
var2=2
for int in 1 2
do
echo "\$var$int"
done
I want the output to be:
1
2
Instead I get something like:
$var1
$var2 (2 Replies)
This is a very crude attempt in Bash at something that I needed but didn't seem to find in the 'sleep' command. However, I would like to be able to do it without the need for the temp file. Please go easy on me if this is already possible in some other way:
How many times have you used the... (5 Replies)
I'm having trouble using sed to validate the length of an entry. I want to have a user enter a phone number of either length 7, 10 or 11. Only numbers are allowed. Does anyone know how to do this? Here's the code I have so far. It only validates that numbers are entered but not the length.
... (1 Reply)
I am having trouble parsing rpm filenames in a shell script.. I found a snippet of perl code that will perform the task but I really don't have time to rewrite the entire script in perl. I cannot for the life of me convert this code into something sed-friendly:
if ($rpm =~ /(*)-(*)-(*)\.(.*)/)... (1 Reply)
Hi
I am looking for a unix command or a small shell script which can takes one parameter and then searches for the passed in the parameter in any or all files under say /home/dev/
Can anyone please help me on this? (3 Replies)
i am passing input parameter 'one_two' to the script , the script output should display the result as below
one_1two
one_2two
one_3two
if
then
echo " Usage : <$0> <DATABASE> "
exit 0
else
for DB in 1 2 3
do
DBname=`$DATABASE | awk -F "_" '{print $1_${DB}_$2}`
done
fi (5 Replies)
Hi,
I have the following files.
->cat scr.sh
export TMP_DIR=/home/user/folder1
export TMP_DIR_2=/home/user/folder2
while read line
do
cat "$line"
done<file_list.dat
------------------------
-> cat file_list.dat
$TMP_DIR/file1.txt
$TMP_DIR_2/file2.txt
---------------------------
-> cat... (6 Replies)
Hi.
How do I achieve this
sh /EDWH-DMT02/script/MISC/exec_sql.sh "@/EDWH-DMT02/script/others/CSM_CKC/Complete_List.sql ${file_name}" Complete_List.txt
The /EDWH-DMT02/script/MISC/exec_sql.sh has two parameters and it's working fine with this
sh /EDWH-DMT02/script/MISC/exec_sql.sh... (7 Replies)
I'm trying to get some exclusions into our sendmail regular expression for the K command. The following configuration & regex works:
LOCAL_CONFIG
#
Kcheckaddress regex -a@MATCH
+<@+?\.++?\.(us|info|to|br|bid|cn|ru)
LOCAL_RULESETS
SLocal_check_mail
# check address against various regex... (0 Replies)
Discussion started by: RobbieTheK
0 Replies
LEARN ABOUT PHP
readdir
READDIR(3) 1 READDIR(3)readdir - Read entry from directory handleSYNOPSIS
string readdir ([resource $dir_handle])
DESCRIPTION
Returns the name of the next entry in the directory. The entries are returned in the order in which they are stored by the filesystem.
PARAMETERS
o $dir_handle
- The directory handle resource previously opened with opendir(3). If the directory handle is not specified, the last link opened
by opendir(3) is assumed.
RETURN VALUES
Returns the entry name on success or FALSE on failure.
Warning
This function may return Boolean FALSE, but may also return a non-Boolean value which evaluates to FALSE. Please read the section on
Booleans for more information. Use the === operator for testing the return value of this function.
EXAMPLES
Example #1
List all entries in a directory
Please note the fashion in which readdir(3)'s return value is checked in the examples below. We are explicitly testing whether the
return value is identical to (equal to and of the same type as--see Comparison Operators for more information) FALSE since other-
wise, any directory entry whose name evaluates to FALSE will stop the loop (e.g. a directory named "0").
<?php
if ($handle = opendir('/path/to/files')) {
echo "Directory handle: $handle
";
echo "Entries:
";
/* This is the correct way to loop over the directory. */
while (false !== ($entry = readdir($handle))) {
echo "$entry
";
}
/* This is the WRONG way to loop over the directory. */
while ($entry = readdir($handle)) {
echo "$entry
";
}
closedir($handle);
}
?>
Example #2
List all entries in the current directory and strip out . and ..
<?php
if ($handle = opendir('.')) {
while (false !== ($entry = readdir($handle))) {
if ($entry != "." && $entry != "..") {
echo "$entry
";
}
}
closedir($handle);
}
?>
SEE ALSO is_dir(3), glob(3), opendir(3), scandir(3).
PHP Documentation Group READDIR(3)