07-31-2009
The $ in front of the string causes it to try to
execute the string and feed
its output into ed, not feed it into ed directly. Which is a new one on me. Shells are such weird things.
cat <<< "asdf" works fine, as does
cat <<< "$varname".
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I have a little script to help me manage a gallery of image files. It makes symbolic links to every file in and below the current directory, placing them in a target directory which is passed to the script as a parameter. Unfortunately, the script pukes when I pass a parameter that contains... (4 Replies)
Discussion started by: TanRanger
4 Replies
2. UNIX for Advanced & Expert Users
If have
var='$variable'
how can I expand $variable.
I have tried many thing like duble quotes/braces etc, but nothing worked.
I need the solution ASAP. (2 Replies)
Discussion started by: Bsk
2 Replies
3. Shell Programming and Scripting
Ummm can anybody help me with this one?
Its prob quite simple.
I bascially have a file name say J1x2x3x7.dat
Im using the file name as a variable in a bash script. Want I want to do is extract most of the file name and make it a new variable expect with say one of the number now a... (2 Replies)
Discussion started by: RichieFondel
2 Replies
4. Shell Programming and Scripting
I have some troubles with variables and quotes...
I want:
if $URL is empty (no user input) go to http://www.localhost/index.php/ else add this string (search) "?s=+$URL"
EXAMPLE:
No user input
string= http://www.localhost/index.php/
User input = "unix"
string=... (3 Replies)
Discussion started by: aspire
3 Replies
5. Shell Programming and Scripting
Hi Guys,
I have an issue with awk and variables. I have trawled the internet and forums but can't seem to get the exactt syntax I need.
I have tried using awk -v and all sorts of variations but I have hit a brick wall. I have spent a full day on this and am just going round in circles.
... (3 Replies)
Discussion started by: gazza-o
3 Replies
6. Shell Programming and Scripting
Sometimes it is handy to protect long scripts in C++.
The following syntax works fine for simple commands:
#define SHELLSCRIPT1 "\
#/bin/bash \n\
echo \"hello\" \n\
"
int main ()
{
cout <<system(SHELLSCRIPT1);
return 0;
}
Unfortunately for there are problems for:
1d arrays:... (10 Replies)
Discussion started by: frad
10 Replies
7. Shell Programming and Scripting
Trying to do so
echo "111:222:333" |awk -F: '{system("export TESTO=" $2)}'But it doesn't work (2 Replies)
Discussion started by: urello
2 Replies
8. Shell Programming and Scripting
My OS is Linux (kernel 4.08.something) and AIX (7100-04-01-1543), the used ksh versions are:
ksh88: Version M-11/16/88f (AIX)
ksh93: Version M 93t+ 2009-05-01 (AIX), Version M 93u (Linux)
When writing a parser for stanza files in ksh i encountered a rather strange behavior. Here is a... (4 Replies)
Discussion started by: bakunin
4 Replies
9. UNIX for Beginners Questions & Answers
I pass an argument to bash as run. The first command in green executes as expected, however the second in blue fails as the $run does not expand. I tried to escape the variable with \ thinking the quotes were making the literal translation and also "${run}" but both did not work to expand the... (3 Replies)
Discussion started by: cmccabe
3 Replies
10. UNIX for Beginners Questions & Answers
Hi Guys,
I wrote a collection of bash functions years ago and now need to use them again but
I'm getting some error messages when eval tries to expand the variables names.
I recollect that I used the shopt command to set one of the options but I can't quite
remember the command that I... (8 Replies)
Discussion started by: ASGR
8 Replies
LEARN ABOUT PHP
array_unshift
ARRAY_UNSHIFT(3) 1 ARRAY_UNSHIFT(3)
array_unshift - Prepend one or more elements to the beginning of an array
SYNOPSIS
int array_unshift (array &$array, mixed $value1, [mixed $...])
DESCRIPTION
array_unshift(3) prepends passed elements to the front of the $array. Note that the list of elements is prepended as a whole, so that the
prepended elements stay in the same order. All numerical array keys will be modified to start counting from zero while literal keys won't
be touched.
PARAMETERS
o $array
- The input array.
o $value1
- First value to prepend.
RETURN VALUES
Returns the new number of elements in the $array.
EXAMPLES
Example #1
array_unshift(3) example
<?php
$queue = array("orange", "banana");
array_unshift($queue, "apple", "raspberry");
print_r($queue);
?>
The above example will output:
Array
(
[0] => apple
[1] => raspberry
[2] => orange
[3] => banana
)
SEE ALSO
array_shift(3), array_push(3), array_pop(3).
PHP Documentation Group ARRAY_UNSHIFT(3)