1. UNIX for Dummies Questions & Answers

Hello guys! Can say me anybody about operatios with unix, I don't to make operations, only inside in a variable, like this #y=4 #x=2 #let z=$y-$x #echo $z # 2 but I can't to make mathematical operations with decimal like this #y=3.2 #x=1.5 #let z=$y-$x #echo $z # 3 this... (2 Replies)

2. UNIX for Dummies Questions & Answers

Hi Friends, I am new to shell scripting and a trying to work this out. I have a variable called $number. The value in this variable is 10 I want to display $number - 2 in a mail. The result would be 8 eg. mail -s 'subject' user <<eof the result of your calculation is $number - 2... (2 Replies)

3. UNIX for Dummies Questions & Answers

I've just installed redhat 6.2 on one of my systems and am trying to install the gcc c compiler after downloading an rpm from the redhat site. The damn thing gives me: only major numbers <= 3 are supported by this version of RPM what do I do, it does the same with the latest rpm of php ... (7 Replies)

4. Shell Programming and Scripting

Hi everyone, I have a requirement that requires me to fill an sqlite database with 100,000 entries (no duplicates). I will start out by giving the command that will insert the values necessary to populate the database: # sqlite /var/local/database/dblist "insert into list... (2 Replies)

5. UNIX for Dummies Questions & Answers

:eek: (1 Reply)

6. Shell Programming and Scripting

Hello all! I used to use expr for doing simple mathematics, but has a main advantage and a main disadvantage: The advantage is that it can take variables for numbers (e.g.{1}: echo "Give me first" read lol echo "Give other" read lil sum=`expr $lol + $lil` echo "The sum of $lol and $lil =... (5 Replies)

7. Shell Programming and Scripting

I am writing a bash script to automate the installation of web environment on a base install of Fedora. And I'm at the limit of my last nerve and my bash skills. My brain is screaming at me: "Give up and use perl", but I am trying to stick to bash since the script will modify the perl environment... (6 Replies)

8. What is on Your Mind?

I have added a new experimental "Computer Science and Mathematics Trivia - True or False" section in the discussions, currently under the tags box. In the future, I plan to Expand this feature to add more trivia categories from math, science and technology. Keep track of correct and... (20 Replies)