|
|
Sponsored Content
Top Forums
Shell Programming and Scripting
Precedence in operators issue
Post 302504497 by Perderabo on Monday 14th of March 2011 06:40:03 PM
03-14-2011
|
|
9 More Discussions You Might Find Interesting
1. Programming
Gurus,
I am teaching myself C and have a question.
I wrote a small prog that reads characters as entered at the prompt and checks the value for EOF.
Unless I am 100% wrong, the value will be '1' until getchar() has anything to read in my stream.
/* PROG 1 */
#include <stdio.h>
... (4 Replies)
Discussion started by: alan
4 Replies
2. Shell Programming and Scripting
#!/usr/bin/perl
open(STDOUT, ">>$Textfile")
open(STDERR, ">>$Textfile")
print "program running\n";
$final = join("+", $initial,$final) #5
close (STDOUT);
close (STDERR);Hi all, above is my perl code. Notice i have captured the stdout and stderr to the same textfile. my code is expected to... (1 Reply)
Discussion started by: new2ss
1 Replies
3. Shell Programming and Scripting
Hi,
I am re-writing a script I wrote which emulated the "rm" command, in my orginal script I had problems with precedence, I did find a way round it by creating a seperate case statements which checked the options and performed the actions accordingly, does anyone know if I can use getopts... (1 Reply)
Discussion started by: jack1981
1 Replies
4. UNIX for Dummies Questions & Answers
I am trying to understand
Does the following:
{tmp+=$10}
Mean take $10 and add them all up and call it tmp
thanks! (2 Replies)
Discussion started by: llsmr777
2 Replies
5. Programming
Hi All,
I have created a common makefile that compiles both pc and c files.
i have created the dependency between the files as
.pc.o:
-----------
.c.o:
-----------
I will be deleting the .c files created from the .pc files, once the object file is created. ( better storage... (7 Replies)
Discussion started by: quintet
7 Replies
6. Shell Programming and Scripting
I really don't know the meaning of these operators. Could someone explain the meanings so I can make my test for today?
<, <=, ==, !=, >=, >,
||, &&, ! ~ , !~
Thanks! (1 Reply)
Discussion started by: Erjen
1 Replies
7. Homework & Coursework Questions
I really don't know the meaning of these operators. Could someone explain the meanings?
<, <=, ==, !=, >=, >,
||, &&, ! ~ , !~
Thanks! (1 Reply)
Discussion started by: Erjen
1 Replies
8. UNIX for Dummies Questions & Answers
Hi,
shell is /bin/ksh
I am trying to do the following in my code.. but its showing me an error
if ] && ] ]]; then
echo "id is $ida and chk_dy is $chk_dy"
fi
the error I get is
syntax error at line 23 : `"$ida"' unexpected
I need to execute the... (2 Replies)
Discussion started by: nss280
2 Replies
9. UNIX for Dummies Questions & Answers
Hi All,
I am new to unix.
In this forum some days back, I have read something like below:
1) Do not use perl if awk can do your work.
2) Do not use awk if sed can do your work.
.
.
.
I do not re-collect the whole thing. I think it is good to know the precedence of using these... (2 Replies)
Discussion started by: Prathmesh
2 Replies
LEARN ABOUT ULTRIX
suspend
suspend(1) User Commands suspend(1) NAME
suspend - shell built-in function to halt the current shell SYNOPSIS
sh suspend csh suspend ksh suspend DESCRIPTION
sh Stops the execution of the current shell (but not if it is the login shell). csh Stop the shell in its tracks, much as if it had been sent a stop signal with ^Z. This is most often used to stop shells started by su. ksh Stops the execution of the current shell (but not if it is the login shell). ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
csh(1), kill(1), ksh(1), sh(1), su(1M), attributes(5) SunOS 5.10 15 Apr 1994 suspend(1)