03-05-2002
Metacharacters
I want to display an asterisk to the screen as part of a string. I know how to use the Backslash to escape it's value. But how do I display it without showing the Backslash?
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Is there a way to use metacharacters in a loop or in an if.
I want to allow a user to enter Y, y, Yes, yes, Yah, etc...
in a loop I tried:
read response
while *" ]
do........
and
while *" ]
do .........
this works for grep or egrep but not in loops
Why?????? (4 Replies)
Discussion started by: jrdnoland1
4 Replies
2. Shell Programming and Scripting
Hello,
I have a question, please (I am using tcsh).
I thought that if you enclose something in double quotes, then the shell won't interpret it. For example, when I do:
% echo "ls *"
I get
ls *
However, if I do:
% echo "!l"
I get
echo "ls -F"
ls -F (3 Replies)
Discussion started by: A1977
3 Replies
3. Shell Programming and Scripting
:confused:Hi ,
Can someone please advise what is the meaning of metacharacters in below code?
a_PROCESS=${0##*/}
a_DPFX=${a_PROCESS%.*}
a_LPFX="a_DPFX : $$ : "
a_UPFX="Usage: $a_PROCESS"
Regards,
gehlnar (3 Replies)
Discussion started by: gehlnar
3 Replies
4. Shell Programming and Scripting
I'm trying to create a bash script that takes a URL as one of its arguments like this:
./script.sh http://url.cfm?asdf&asdf=234
variable=$1
echo $variable
I'm having trouble storing the URL because it contains the meta character "&" which is being interpreted... thus when I run the... (4 Replies)
Discussion started by: kds1398
4 Replies
5. Shell Programming and Scripting
If I have a filename as
filename.txt.20090807
and I use
for FILE in `find . -name "filename*" -type f`
do
my_time=${FILE#./filename.txt.}
I get my output as 20090807
However if my filename is
filename.Y20090807.txt
Is there a way I can use metacharacters in my... (3 Replies)
Discussion started by: RubinPat
3 Replies
6. UNIX for Dummies Questions & Answers
Hello. I am learning how to use Unix through an online course. Unfortunately the text that we use isn't very good, so I could use some help with a pretty basic question.
Use metacharacters and the ll command to list all filenames under the datafiles directory that contain a dot "." with the... (2 Replies)
Discussion started by: feverdream
2 Replies
7. Shell Programming and Scripting
I have prepared a script to submit a string in a txt file.
However there are somethings that I have to check before submitting the string in the txt file.
One of those checks is to determine whether the string entered contains any metacharacters.
I have tried sth like;
echo "string" | grep -v ... (3 Replies)
Discussion started by: ozum
3 Replies
8. UNIX for Dummies Questions & Answers
1) I want to display all the files in a directory that start with the word chapter, are followed by a digit 1,2,6,8, or 9 and end with .eps or .prn
so I came up with this
file ~/temp/chapter.eps ~/temp/chapter.prn
but is there a better way, i.e. combining both file types into the command?
... (2 Replies)
Discussion started by: dunsta
2 Replies
9. Shell Programming and Scripting
I have a file which contains a list of paths separated by a new line character.
e.g
/some/path/to/a/file.png
/some/path to/another/file.jpeg
/some path/to yet/another/file
Notice that these paths may contain metacharacters, the spaces for example are also not escaped.
If I wanted... (5 Replies)
Discussion started by: cue
5 Replies
10. Shell Programming and Scripting
I am currently reading a very old reference from O'Reilly: Sed and Awk 2nd Edition reprinted in 2000. So far, it's a solid read and still very relevant. I'd highly recommend this to anyone.
The only problem I have with this book is that I had to resort to bourne shell to get my examples to work... (3 Replies)
Discussion started by: ConcealedKnight
3 Replies
LEARN ABOUT MOJAVE
show_mouse
show_mouse(3alleg4) Allegro manual show_mouse(3alleg4)
NAME
show_mouse - Tells Allegro to display a mouse pointer on the screen.
SYNOPSIS
#include <allegro.h>
void show_mouse(BITMAP *bmp);
DESCRIPTION
Tells Allegro to display a mouse pointer on the screen. This will only work if the timer module has been installed. The mouse pointer will
be drawn onto the specified bitmap, which should normally be `screen' (see later for information about bitmaps). To hide the mouse pointer,
call show_mouse(NULL).
Warning: if you draw anything onto the screen while the pointer is visible, a mouse movement interrupt could occur in the middle of your
drawing operation. If this happens the mouse buffering and graphics drawing code will get confused and will leave 'mouse droppings' all
over the screen. To prevent this, you must make sure you turn off the mouse pointer whenever you draw onto the screen. This is not needed
if you are using a hardware cursor.
Note: you must not be showing a mouse pointer on a bitmap at the time that the bitmap is destroyed with destroy_bitmap(), e.g. call
show_mouse(NULL); before destroying the bitmap. This does not apply to `screen' since you never destroy `screen' with destroy_bitmap().
SEE ALSO
install_mouse(3alleg4), install_timer(3alleg4), set_mouse_sprite(3alleg4), scare_mouse(3alleg4), freeze_mouse_flag(3alleg4), show_os_cur-
sor(3alleg4), exmouse(3alleg4), expal(3alleg4), exshade(3alleg4), exspline(3alleg4), exsyscur(3alleg4)
Allegro version 4.4.2 show_mouse(3alleg4)