Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: if and then statements
Top Forums UNIX for Dummies Questions & Answers if and then statements Post 302492352 by _light_ on Monday 31st of January 2011 04:56:11 AM
Old 01-31-2011
if and then statements
I came across a bash script that outputs the forecast for the day and the max temperature but at the end of the day the max temperature disappears ($6) and I am left with "°C" after the forecast.

Here is the script:

Code:
#! /bin/bash

curl -s --connect-timeout 30 "ftp://ftp2.bom.gov.au/anon/gen/fwo/IDA00003.html" | grep "Melbourne" | sed -e 's,&nbsp;,,g' -e 's/<\/TD>/\]/g' -e 's/<[^>]*>//g' | awk -F ']' '{print "Today: " $4 " " $6"°C"}'
exit 0

I tried writing 'if' and 'then' statements such as

Code:
if [ "$6" == "" ]; then
'{print "Today: " $4}'

but I ended up with awk errors and such.

Any idea how to implement it in?
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

if statements

I am trying to change this : Albert Einstein 52 Peter Scott 22 Hilary Smith 48 Joan Bakewell 30 Catherine Maguire 26 into Albert Einstein Pass Peter Scott Fail Hilary Smith Pass Joan Bakewell Fail Catherine Maguire Fail I have to use a if statement that says: if field 3 is... (2 Replies)
Discussion started by: lilas
2 Replies

2. Shell Programming and Scripting

Please help on IF statements.

I had different problem scenarios with IF statement. Can any expert please enlighten me on the difference with these scenarios. Thank you. 1st Scenario: testdate=`date +%Y%m` test=`cat /var/log/database0.$testdate*.log | grep "Errors found during processing" | tail -10` if then ... (4 Replies)
Discussion started by: filthymonk
4 Replies

3. UNIX for Advanced & Expert Users

if statements

This is for a program I have to do to calculate the day of the week. I need to write an if statement that will do the following: if day is 29 and year is odd, don't calculate dayif ( day == 29 && year == ??? )I know how to do it for the day but I don't know how to do it for the year. (4 Replies)
Discussion started by: pwanda
4 Replies

4. Shell Programming and Scripting

HELP!! if statements

I am kind of new in Unix and i have to make a menu. I want to put an if statement in the menu. you should enter the filename and it goes to that file. How do i do this? (1 Reply)
Discussion started by: trob
1 Replies

5. UNIX for Dummies Questions & Answers

Help with For Statements

Hi, I am trying to write a for statement that will allow for the ps, who, finger, and date commands to run. Can anyone help? I use Putty. (22 Replies)
Discussion started by: lexydoll87
22 Replies

6. Shell Programming and Scripting

If statements....

Good morning all! I want to know if Im interpreting this if statement below right. if(((1) || (0)) && (1)){ do stuff; } This is saying: if true piped into false, then true, then do stuff. Right? What does the && stand for? thanks in advance! ben (3 Replies)
Discussion started by: bigben1220
3 Replies

7. Shell Programming and Scripting

Help with IF statements

I am writing a script that does a search for a argument in a file and lists all like occurrences. The script verifies that it is a file and then runs another script that list the lines. My problem is that I need the script to accept a file or a directory and then go to that directory check all... (1 Reply)
Discussion started by: zero3ree
1 Replies

8. Shell Programming and Scripting

vi and if statements

Hi I am very new to Unix programming and shell scripting. I am trying t figure out how to write a little script that will output the number of directories. I can find the number of directories using ls -l | grep "^d" | wc -l I can not figure out how to do it so when I type the name... (8 Replies)
Discussion started by: Reddoug
8 Replies

9. Shell Programming and Scripting

Using While and If statements

Hi guys, Two problems I need solving please. I created a script where the user types in 7 numbers as standard input and each one is then stored in an array. Now I need to perform the following calculations on those numbers: 1) Use a while loop to determine the largest number in the range. ... (2 Replies)
Discussion started by: jjb1989
2 Replies

10. Homework & Coursework Questions

Using While and If statements

1. The problem statement, all variables and given/known data: Two problems I need solving please. I created a script where the user types in 7 numbers as standard input and each one is then stored in an array. Now I need to perform the following calculations on those numbers: 1) Use a while... (11 Replies)
Discussion started by: jjb1989
11 Replies

LEARN ABOUT DEBIAN

redshift

REDSHIFT(5)							 REDSHIFT.CONF(5)						       REDSHIFT(5)

NAME

       redshift.conf - configuration file for redshift and gtk-redshift

DESCRIPTION

       A configuration file with the name `redshift.conf' can optionally be placed in `~/.config/'. The file has standard INI format. General pro-
       gram options are placed under the `redshift' header, while options for location providers and adjustment methods are placed under a  header
       with the name of that provider or method. General options are:

       temp-day = integer
	      Daytime temperature

       temp-night = integer
	      Night temperature

       transition = 0 or 1
	      Disable or enable transitions

       brightness-day = 0.1-1.0
	      Screen brightness at daytime

       brightness-night = 0.1-1.0
	      Screen brightness at night

       gamma = R:G:B
	      Gamma adjustment to apply

       adjustment-method = name
	      Select adjustment method. Options for the adjustment method can be given under the configuration file heading of the same name.

       location-provider = name
	      Select location provider. Options for the location provider can be given under the configuration file heading of the same name.

       Options for location providers and adjustment methods can be found in the help output of the providers and methods.

EXAMPLE

       Example for Copenhagen, Denmark:

	      $ redshift -l 55.7:12.6 -t 5700:3600 -g 0.8 -m vidmode -v

       An example configuration file with the same effect as the above command line:

	      [redshift]
	      temp-day=5700
	      temp-night=3600
	      gamma=0.8
	      adjustment-method=vidmode
	      location-provider=manual

AUTHOR

       redshift was written by Martin Koelewijn and Jon Lund Steffensen.

       This manual page was created by Franziska Lichtblau <rhalina@old-forest.org> for the Debian project (and may be used by others).

redshift 1.7							     June 2012							       REDSHIFT(5)
All times are GMT -4. The time now is 02:53 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy