Strange Results


 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers Strange Results
# 1  
Strange Results

I am using th following to get the percentage and have never used bc before:
percent=$(echo "scale=4;(34117/384000)*100" | bc)
8.884600
percent=$(echo "scale=2;(34117/384000)*100" | bc)
8.00

Why do I get the results of 8.00 instead of 8.88 when using a scale of 2. I only want 2 decimal places but don't know why it changes it to 8.00. Can anyone help?
# 2  
Hammer & Screwdriver It is where you multiply by 100

You should multiply by 100 before the division (to make the numerator of the fraction larger). See examples below:

Code:
> percent=$(echo "scale=4;(34117/384000)*100" | bc)
> echo $percent
8.8800
> percent=$(echo "scale=4;(34117*100/384000)" | bc)
> echo $percent
8.8846
> percent=$(echo "scale=2;(34117*100/384000)" | bc)
> echo $percent
8.88

# 3  
Strange Results

Thank you. Guess I should have remembered my basic math rules of multiply before divide.
 

Previous Thread | Next Thread
Thread Tools Search this Thread
Search this Thread:
Advanced Search

Test Your Knowledge in Computers #714
Difficulty: Medium
Machine learning is a well known method for mitigating the Von Neumann performance bottleneck
True or False?

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Strange results from 'strings | sort'

Using the 'strings' command and piping the result to 'sort' is producing strange results. I get block of lines that begin with asterisks, then a block that begins with some text, then more lines that begin with asterisks. The actual content is correct - lines beginning with asterisks is the... (5 Replies)
Discussion started by: edstevens
5 Replies

2. Shell Programming and Scripting

I want to add a variable for the results from the formula of one variable and results of another var

Good morning all, This is the file name in question OD_Orders_2019-02-19.csv I am trying to create a bash script to read into files with yesterdays date on the file name while retaining the rest of the files name. I would like for $y to equal, the name of the file with a formula output with... (2 Replies)
Discussion started by: Ibrahim A
2 Replies

3. UNIX for Beginners Questions & Answers

Strange sort -r results

Hi Folks - I have this file that looks like this: outbox/logs/Client_1042.log outbox/logs/Client_941.log outbox/logs/Client_942.log outbox/logs/Client_943.log outbox/logs/Client_944.log And this is my code: #!/bin/bash _OUTBOX_BIN="outbox/logs/" _NAME="Client" _TEMP="temp.txt"... (9 Replies)
Discussion started by: SIMMS7400
9 Replies

4. Shell Programming and Scripting

Find with rm command gives strange results

I want to remove any files that are older than 2 days from a directory. It deletes those files. Then it comes back with a message it is a directory. What am I doing wrong here? + find /mydir -mtime +2 -exec rm -f '{}' ';' rm: /mydir is a directory (2 Replies)
Discussion started by: jtamminen
2 Replies

5. UNIX for Advanced & Expert Users

Rsync in progress, strange results

Disclaimer, I've been a Linux admin for a while but don't frequently setup rsysnc jobs. Here's the command I'm running on CentOS 5.5, rsync 2.6.8: rsync -arvz --progress --compress-level=9 /src/ /dest/ /src has 1.5 TB of data, /dest/ is a new destination and started out empy. Oh ya, both... (4 Replies)
Discussion started by: DustinT
4 Replies

6. Shell Programming and Scripting

Can ctag and cscope support recording search results and displaying the history results ?

Hello , When using vim, can ctag and cscope support recording search results and displaying the history results ? Once I jump to one tag, I can use :tnext to jump to next tag, but how can I display the preview search result? (0 Replies)
Discussion started by: 915086731
0 Replies

7. Shell Programming and Scripting

Strange results from FDISK?????

Hi all, I am writing script that returns the size of each disk or partition when called. I am using FDISK -l and parsing the results to get the result I want. When I execute fdisk -l it shows correct results, BUT when I execute the same thing with results to be put in a variable, I get strange... (5 Replies)
Discussion started by: alirezan
5 Replies

8. Solaris

Something strange...

Hi all, Thanks for any replies and for reading in advance. We have upgraded one of our database instances to 10g on a Solaris 8 box, anyhow the other day it started trying to ping loads of weird IP addresses that we don't use, since our systems all run on pretty similar IP's. It all behind... (0 Replies)
Discussion started by: B14speedfreak
0 Replies

9. AIX

Strange ls results..

Multipart question.. Can anybody explain why this happens : -rw-rw-r-- 1 fnsw fnusr 1531061 Feb 13 21:45 filename1.log -rw-rw-r-- 1 fnsw fnusr 1760706 Feb 10 22:10 filename2.log -rw-rw-r-- 1 fnsw fnusr 1525805 Aug 16 2005 filename3.log -rw-rw-r-- 1... (3 Replies)
Discussion started by: dbridle
3 Replies

10. UNIX for Dummies Questions & Answers

strange

Hi All I am doing a locate <file_name> on my Redhat 7 System. I am unable to get the output. All the keep getting is: locate: this is not a vlaid slocate database: /var/lib/locate/slocate.db What des this mean? Is my system compromised? Thanks in advance. KS (13 Replies)
Discussion started by: skotapal
13 Replies

Featured Tech Videos