03-05-2005
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I just started shell coding and I'm a bit confused on how 'mv' works can someone explain to me how it works and if i did this correctly. Thanks.
echo "Enter Name of the first file:"
read file1
#echo $file1
if ; then
echo "Sorry, file does not exist."
exit 1
... (16 Replies)
Discussion started by: taiL
16 Replies
2. Shell Programming and Scripting
# sub: find block (in cols), return line-numbers (begin-end) or 0 if notfound
sub findb{
my ($exp1,$col1,$exp2,$col2)= @_; # $exp = expression to find, $col - column to search in
my $cnt=0;
my ($val1,$val2);
my ($beg,$end);
for($cnt=1;$cnt<=65536;$cnt++){
$val1 =... (3 Replies)
Discussion started by: suvenduperl
3 Replies
3. UNIX for Dummies Questions & Answers
Hi Gurus:
I am trying to understand the following line of code.I did enough of googling to understand but no luck.Please help me understand the follow chunk of code:
X=$0
MOD=${X%/*}/env.ksh
X is the current script from which I am trying to execute.
Say if X=test.ksh
$MOD is echoing :... (3 Replies)
Discussion started by: vemana
3 Replies
4. Solaris
Hi
I have a questions related 2 commands : 'du' and 'ls'.
Why is the difference between output of 'du' and 'ls' cmd's ?
Command 'du' :
------------------
jakubn@server1 /home/jakubn $ du -s *
4 engine.ksh
1331 scripts
'du -s *' ---> shows block count size on disk (512 Bytes... (5 Replies)
Discussion started by: presul
5 Replies
5. Shell Programming and Scripting
Hi all
I stuck with a problem. I want to understand the execution of the below code. Can any one please help me
`sqlplus username/passwd@DB << EOF
set serveroutput on
declare
begin
sql_query;
end;
/
commit
/
quit
EOF`
My ques is why do we use EOF and how does it help. (4 Replies)
Discussion started by: parthmittal2007
4 Replies
6. Shell Programming and Scripting
Hi,
Please help me to understand the bold segments in the below regex.
Both are of same type whose meaning I am looking for.
find . \( -iregex './\{6,10\}./src' \) -type d -maxdepth 2
Output:
./20111210.0/src
In continuation to above:
sed -e 's|./\(*.\{1,3\}\).*|\1|g'
Output: ... (4 Replies)
Discussion started by: vibhor_agarwali
4 Replies
7. Shell Programming and Scripting
Hi Guys,
I am new to scripting , I am trying to rebuild a script based on an old script. Can someone help me figure out what the script is doing? This is only a part of the script.
I am looking to interpret these two points in the scripts:-
1)
test=`echo $?`
while
I do not... (3 Replies)
Discussion started by: rajsan
3 Replies
8. Shell Programming and Scripting
Hi, I saw the following explanation about alias in bash from gnu website, but I didn't get the meaning:
Bash always reads at least one complete line of input before executing any of the commands on that line.
Aliases are expanded when a command is read, not when it is executed. Therefore, an... (3 Replies)
Discussion started by: Roy987
3 Replies
9. UNIX for Dummies Questions & Answers
I tried to use lseek system call to determine the number of bytes in a file. To do so, I used open system call with O_APPEND flag to open a file. As lseek returns the current offset so I called lseek for opened file with offset as zero and whence as SEEK_CUR. So I guess it must return the number of... (3 Replies)
Discussion started by: Deepak Raj
3 Replies
10. Shell Programming and Scripting
Hi,
I found this in a script and I would like to know how this works
Code is here:
# var1=PART1_PART2
# var2=${var1##*_}
# echo $var2
PART2
I'm wondering how ##* makes the Shell to understand to pick up the last value from the given. (2 Replies)
Discussion started by: sathyaonnuix
2 Replies
LEARN ABOUT REDHAT
glplanet
XScreenSaver(1) General Commands Manual XScreenSaver(1)
NAME
glplanet - rotating 3d texture-mapped planet.
SYNOPSIS
glplanet [-display host:display.screen] [-visual visual] [-window] [-root] [-no-light] [-delay number] [-bitmap file] [-wireframe] [-fps]
DESCRIPTION
Draws a planet bouncing around in space. The built-in image is a map of the earth, but you can wrap any texture around the sphere, e.g.,
the planetary textures that come with `ssystem'.
OPTIONS
-visual visual
Specify which visual to use. Legal values are the name of a visual class, or the id number (decimal or hex) of a specific visual.
-window Draw on a newly-created window. This is the default.
-root Draw on the root window.
-light | -no-light
Use Flat Coloring.
-delay number
Per-frame delay, in microseconds. Default: 15000 (0.01 seconds.).
-bitmap file
The texture map to wrap around the planet's surface.
-wireframe
Render in wireframe instead of solid.
-fps | -no-fps
Whether to show a frames-per-second display at the bottom of the screen.
ENVIRONMENT
DISPLAY to get the default host and display number.
XENVIRONMENT
to get the name of a resource file that overrides the global resources stored in the RESOURCE_MANAGER property.
SEE ALSO
X(1), xscreensaver(1)
COPYRIGHT
Copyright (C) 2002 by David Konerding. Permission to use, copy, modify, distribute, and sell this software and its documentation for any
purpose is hereby granted without fee, provided that the above copyright notice appear in all copies and that both that copyright notice
and this permission notice appear in supporting documentation. No representations are made about the suitability of this software for any
purpose. It is provided "as is" without express or implied warranty.
AUTHOR
David Konerding.
X Version 11 XScreenSaver(1)