This is basically what that syntax does... Creates a piped background process. This code is good, except I always recommend to quote variable expansions (What if a filename ends up having a space in it?) and avoid all capital variables (What if we accidentally overlook its use as an environment/internal variable).
ie:
This User Gave Thanks to neutronscott For This Post:
Hello All,
I have a perl script , and the STDERR and additional FH is redirected to the STDOUT like below:
open STDOUT ,">>$log" or die "$! :: $log\n";
open STDERR ,">&STDOUT" or die "$! :: Can redirect STDERR to STDOUT\n";
select STDERR; $|=1;
open LOG ,">&STDOUT" or die "$! :: Can... (2 Replies)
I have been doing this:
make xyz &> xyz.log &; tail -f xyz.log
The problem with this is that you never can ge sure when "make xyz" is done.
How can I pipe both stderr and stdout into tee so both stderr and stdout are copied both to the display and to the log file?
Thanks,
Siegfried (3 Replies)
Hi,
I would like to process, filter the same ASCII asynchronous live data stream in more than one pipe pipeline.
So the one pipeline should filter out some records using grep key word
and more than one pipes pipelines
each should grep for another key words, each set seperately for each... (5 Replies)
Hi All,
I need to redirect screen o/p of shell script to file , but I don't want to use "tee" :Dcommand
./test.sh 2>&1 | tee /var/tmp/testing`date +'%d%h%Y%T'`.log
but I want to write some code inside the shell script itself so wen I execute
./test.sh
it will display o/p in screen... (3 Replies)
BACK STORY:
I have a script build.py . (It's for creating the ISO file for a special edition of Swift Linux.) This build.py script executes the mintConstructor.py script that I use to modify the Regular Swift Linux ISO to get the special edition Swift Linux ISO. The lines of the script that... (2 Replies)
Dear all,
redirecting STDOUT & STDERR to file is quite simple, I'm currently using:
exec 1>>/tmp/tmp.log; exec 2>>/tmp/tmp.logBut during script execution I would like the output come back again to screen, how to do that?
Thanks
Lucas (4 Replies)
I have to redirect STDERR messages both to screen and also capture the same in a file but STDOUT only to the same file.
I have searched in this formum for a solution, but something like
srcipt 3>&1 >&2 2>&3 3>&- | tee errs
doesn't work for me...
Has anyone an idea??? (18 Replies)
I have code fragment like
{
aa
bb
cc
} > $LOG
aa bb cc, all call function "ff", I want "ff" to print on the screen,but others do not print on the scree, is there a method? I can't use "tee", becasue tee I meet the write "error"
ff()
{
echo "hello"
} (2 Replies)
I have a problem when i try to create a log file from a daemon process using shell scripting in ubuntu 12. Ultimatly what i want to achieve is run a java/jar file from a script. After scourging the internet i found several solutions to do this, the one i choose is to create a startup script that... (4 Replies)
Dear all,
redirecting STDOUT & STDERR to file is quite simple, I'm currently using:
Code:
exec 1>>/tmp/tmp.log; exec 2>>/tmp/tmp.log
But during script execution I would like the output come back again to screen, how to do that?
Thanks
Luc
edit by bakunin: please use CODE-tags like the... (6 Replies)
Discussion started by: tmonk1
6 Replies
LEARN ABOUT NETBSD
scroll_screen
scroll_screen(3alleg4) Allegro manual scroll_screen(3alleg4)NAME
scroll_screen - Requests a hardware scroll request. Allegro game programming library.
SYNOPSIS
#include <allegro.h>
int scroll_screen(int x, int y);
DESCRIPTION
Attempts to scroll the hardware screen to display a different part of the virtual screen (initially it will be positioned at 0, 0, which is
the top left corner). You can use this to move the screen display around in a large virtual screen space, or to page flip back and forth
between two non-overlapping areas of the virtual screen. Note that to draw outside the original position in the screen bitmap you will have
to alter the clipping rectangle with set_clip_rect().
Mode-X scrolling is reliable and will work on any card, other drivers may not work or not work reliably. See the platform-specific section
of the docs for more information.
Allegro will handle any necessary vertical retrace synchronisation when scrolling the screen, so you don't need to call vsync() before it.
This means that scroll_screen() has the same time delay effects as vsync().
RETURN VALUE
Returns zero on success. Returns non-zero if the graphics driver can't handle hardware scrolling or the virtual screen is not large enough.
SEE ALSO set_gfx_mode(3alleg4), show_video_bitmap(3alleg4), request_scroll(3alleg4), request_video_bitmap(3alleg4), exscroll(3alleg4)Allegro version 4.4.2 scroll_screen(3alleg4)