Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: if statement negation
Top Forums Shell Programming and Scripting if statement negation Post 302498533 by Chubler_XL on Monday 21st of February 2011 05:44:28 PM
Old 02-21-2011
Dont forget the $ in front of variable names and space after !

Code:
if ! [[ $x = 0 && $y = 0 ]]; then

or
Code:
if [[ ! ($x = 0 && $y = 0) ]]; then

 

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Bitwise negation

I am taking an online course on Unix scripting. The topic is Unix arithmetic operators and the lesson is Logical and bitwise operations. It is not clear how much storage space Unix uses to represent integers that are typed. Bitwise negation caused me to question how many bits are used to... (3 Replies)
Discussion started by: dLloydm
3 Replies

2. Shell Programming and Scripting

negation in find path

Guys, Pl suggest me how to ignore a path in find command... I am aware of using "!" for other option... but how can i use it like this exampl... I want to search something for in / but not in Pl help. Thanks.. (2 Replies)
Discussion started by: clx
2 Replies

3. Shell Programming and Scripting

If statement - How to write a null statement

In my ksh script, if the conditions of a if statement are true, then do nothing; otherwise, execute some commands. How do I write the "do nothing" statement in the following example? Example: if (( "$x"="1" && "$y"="a" && "$z"="happy" )) then do nothing else command command fi... (3 Replies)
Discussion started by: april
3 Replies

4. UNIX for Dummies Questions & Answers

grep with negation in "if" statement

I have an "if" statement which checks for certain pattern in the file: if grep -i dblist.comdbg /bb/bin/rstrt then copydb else exit 1 fi How can I use the same statement with negation, checking if file does not exist, something like if ! grep -i dblist.comdbg /bb/bin/rstrt then ... (2 Replies)
Discussion started by: aoussenko
2 Replies

5. Shell Programming and Scripting

How is use sselect statement o/p in insert statement.

Hi All, I am using Unix ksh script. I need to insert values to a table using the o/p from a slelect statement. Can anybody Help! My script looks like tihs. ---`sqlplus -s username/password@SID << EOF set heading off set feedback off set pages 0 insert into ${TB_NAME}_D... (2 Replies)
Discussion started by: nkosaraju
2 Replies

6. Shell Programming and Scripting

Negation in "tr"

Is there an option for negation in the "tr" command? For eg: echo hi | tr "h" "i" will print "ii". But if I want to covert all characters that are not "h" to "j", how do I do that? Is there something like "!" in tr? Or any switch? Thanks, Prasanna (17 Replies)
Discussion started by: prasanna1157
17 Replies

7. Homework & Coursework Questions

Negation

Hello, have anybody any idea, how to negate some expression? I have code that greps somethnig and I want filter from it some results...How to make it? IDontWantThisExpression=$1 grep 'some regex' | grep '$IDontWantThisExpression' testfile.txt Thanks for any advices. Faculty of... (2 Replies)
Discussion started by: Dworza
2 Replies

8. Shell Programming and Scripting

Negation in Bash Globbing

$ ls -1 a.1 b.1 x_a.1 x_b.1 $ ls -1 * b.1 x_a.1 x_b.1 $ ls -1 ** a.1 b.1 x_a.1 x_b.1The last result is not as expected. Why? Thanks. (2 Replies)
Discussion started by: carloszhang
2 Replies

9. Shell Programming and Scripting

Convert Update statement into Insert statement in UNIX using awk, sed....

Hi folks, I have a scenario to convert the update statements into insert statements using shell script (awk, sed...) or in database using regex. I have a bunch of update statements with all columns in a file which I need to convert into insert statements. UPDATE TABLE_A SET COL1=1 WHERE... (0 Replies)
Discussion started by: dev123
0 Replies

LEARN ABOUT SUSE

ansi_cattr

term::ansi::code::attr(n)					 Terminal control					 term::ansi::code::attr(n)

__________________________________________________________________________________________________________________________________________________

NAME

       term::ansi::code::attr - ANSI attribute sequences

SYNOPSIS

       package require Tcl  8.4

       package require term::ansi::code  ?0.1?

       package require term::ansi::code::attr  ?0.1?

       ::term::ansi::code::attr::names

       ::term::ansi::code::attr::import ?ns? ?arg...?

       ::term::ansi::code::attr::fgblack

       ::term::ansi::code::attr::fgred

       ::term::ansi::code::attr::fggreen

       ::term::ansi::code::attr::fgyellow

       ::term::ansi::code::attr::fgblue

       ::term::ansi::code::attr::fgmagenta

       ::term::ansi::code::attr::fgcyan

       ::term::ansi::code::attr::fgwhite

       ::term::ansi::code::attr::fgdefault

       ::term::ansi::code::attr::bgblack

       ::term::ansi::code::attr::bgred

       ::term::ansi::code::attr::bggreen

       ::term::ansi::code::attr::bgyellow

       ::term::ansi::code::attr::bgblue

       ::term::ansi::code::attr::bgmagenta

       ::term::ansi::code::attr::bgcyan

       ::term::ansi::code::attr::bgwhite

       ::term::ansi::code::attr::bgdefault

       ::term::ansi::code::attr::bold

       ::term::ansi::code::attr::dim

       ::term::ansi::code::attr::italic

       ::term::ansi::code::attr::underline

       ::term::ansi::code::attr::blink

       ::term::ansi::code::attr::revers

       ::term::ansi::code::attr::hidden

       ::term::ansi::code::attr::strike

       ::term::ansi::code::attr::nobold

       ::term::ansi::code::attr::noitalic

       ::term::ansi::code::attr::nounderline

       ::term::ansi::code::attr::noblink

       ::term::ansi::code::attr::norevers

       ::term::ansi::code::attr::nohidden

       ::term::ansi::code::attr::nostrike

       ::term::ansi::code::attr::reset

_________________________________________________________________

DESCRIPTION

       This package provides symbolic names for the ANSI attribute control codes. For each control code a single command is provided which returns
       this code as its result. None of the commands of this package write  to	a  channel;  that  is  handled	by  higher  level  packages,  like
       term::ansi::send.

API

   INTROSPECTION
       ::term::ansi::code::attr::names
	      This command is for introspection. It returns as its result a list containing the names of all attribute commands.

       ::term::ansi::code::attr::import ?ns? ?arg...?
	      This  command imports some or all attribute commands into the namespace ns. This is by default the namespace attr. Note that this is
	      relative namespace name, placing the imported command into a child of the current namespace. By default all commands  are  imported,
	      this can howver be restricted by listing the names of the wanted commands after the namespace argument.

   ATTRIBUTES
       ::term::ansi::code::attr::fgblack
	      Set text color to Black.

       ::term::ansi::code::attr::fgred
	      Set text color to Red.

       ::term::ansi::code::attr::fggreen
	      Set text color to Green.

       ::term::ansi::code::attr::fgyellow
	      Set text color to Yellow.

       ::term::ansi::code::attr::fgblue
	      Set text color to Blue.

       ::term::ansi::code::attr::fgmagenta
	      Set text color to Magenta.

       ::term::ansi::code::attr::fgcyan
	      Set text color to Cyan.

       ::term::ansi::code::attr::fgwhite
	      Set text color to White.

       ::term::ansi::code::attr::fgdefault
	      Set default text color (Black).

       ::term::ansi::code::attr::bgblack
	      Set background to Black.

       ::term::ansi::code::attr::bgred
	      Set background to Red.

       ::term::ansi::code::attr::bggreen
	      Set background to Green.

       ::term::ansi::code::attr::bgyellow
	      Set background to Yellow.

       ::term::ansi::code::attr::bgblue
	      Set background to Blue.

       ::term::ansi::code::attr::bgmagenta
	      Set background to Magenta.

       ::term::ansi::code::attr::bgcyan
	      Set background to Cyan.

       ::term::ansi::code::attr::bgwhite
	      Set background to White.

       ::term::ansi::code::attr::bgdefault
	      Set default background (Transparent).

       ::term::ansi::code::attr::bold
	      Bold on.

       ::term::ansi::code::attr::dim
	      Dim on.

       ::term::ansi::code::attr::italic
	      Italics on.

       ::term::ansi::code::attr::underline
	      Underscore on.

       ::term::ansi::code::attr::blink
	      Blink on.

       ::term::ansi::code::attr::revers
	      Reverse on.

       ::term::ansi::code::attr::hidden
	      Hidden on.

       ::term::ansi::code::attr::strike
	      Strike-through on.

       ::term::ansi::code::attr::nobold
	      Bold off.

       ::term::ansi::code::attr::noitalic
	      Italics off.

       ::term::ansi::code::attr::nounderline
	      Underscore off.

       ::term::ansi::code::attr::noblink
	      Blink off.

       ::term::ansi::code::attr::norevers
	      Reverse off.

       ::term::ansi::code::attr::nohidden
	      Hidden off.

       ::term::ansi::code::attr::nostrike
	      Strike-through off.

       ::term::ansi::code::attr::reset
	      Reset all attributes to their default values.

BUGS, IDEAS, FEEDBACK
       This  document, and the package it describes, will undoubtedly contain bugs and other problems.	Please report such in the category term of
       the Tcllib SF Trackers [http://sourceforge.net/tracker/?group_id=12883].  Please also report any ideas for enhancements you  may  have  for
       either package and/or documentation.

KEYWORDS

       ansi, attribute control, color control, control, terminal

COPYRIGHT

       Copyright (c) 2006 Andreas Kupries <andreas_kupries@users.sourceforge.net>

term									0.1						 term::ansi::code::attr(n)
All times are GMT -4. The time now is 04:28 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy