Sponsored Content
Top Forums UNIX for Dummies Questions & Answers [Solved] How to calculate in sun bash Post 302714283 by Pieter0815 on Friday 12th of October 2012 02:58:11 AM
Old 10-12-2012
[Solved] How to calculate in sun bash

I have two problems, and it would be great if someone could help me:

The first line does not calculate. I have checked the origin term to calculate the variables
and the result is OK. Normal substactions with $xx -100 work, but not in this constallation. I tried it with "| bc" and no result too.
Code:
x= $((y - z))

 echo "$x"
 a=`echo "$x"-10 | bc`
 echo "$a"

And the comparison does not work, I tried -bg with no result too
Code:
 if [ `echo "$a" > 0  | bc` ]
   then sendme /rsi/logs/csc_summary_size_check.log stefan.madre
 fi

Thanks for your help

Moderator's Comments:
Mod Comment Please view this code tag video for how to use code tags when posting code and data.

Last edited by vbe; 10-12-2012 at 05:27 AM.. Reason: code tags..
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

[SOLVED] how to use my aliases in a bash script

Hi, I confess to be stuck ... as explained here Aliases - Bash Reference Manual I added shopt -s expand_aliasesto my script ... but it didn't work. Later I've read I had to add this at the begning of my my script : . ~/.bash_aliases(of course my aliases are in this file) but again, the... (0 Replies)
Discussion started by: xib.be
0 Replies

2. UNIX for Dummies Questions & Answers

Calculate the day after bash

Hello I would like to help me create a script that: Given a date, more precisely a year, one month and one day. must calculate the day after -Input: Year, Month, Day -Output: Next day the Year-Month-Day thanks (9 Replies)
Discussion started by: karkov
9 Replies

3. Emergency UNIX and Linux Support

[Solved] DCMU (disk control and monitor utility) sun fire

Hi , during 2 weeks i´ve been trying to find them. i need DCMU packets for managing internal disks on sun fire x4500 and sun fire x4600 on rhel. i have opened to tickets to myoraclesupport but no answer. please anybody could tell me a link or anythiing?? i´ve been searching and searching... (1 Reply)
Discussion started by: pabloli150
1 Replies

4. Shell Programming and Scripting

Calculate the number of days between 2 dates - bash script

I wrote the day calculator also in bash. I would like to now, that is it good so? #!/bin/bash datum1=`date -d "1991/1/1" "+%s"` datum2=`date "+%s"` diff=$(($datum2-$datum1)) days=$(($diff/(60*60*24))) echo $days Thanks in advance for your help! (3 Replies)
Discussion started by: kovacsakos
3 Replies

5. UNIX for Dummies Questions & Answers

[Solved] Calculation on sun again

I posted this question before 2 months and gain a solution. Thanks again for this, but I tried it now and had no success. Could the specialists be so kind to have a second look please. Please look down to see the whole code. All 3 shown calculation possibilities have the same result... (12 Replies)
Discussion started by: Pieter0815
12 Replies

6. Hardware

[solved] Sun Netra X1 - Adding a Second Hard Drive

As the title suggests, I'm trying to install a second drive (really want an OS mirror) on a Sun Netra X1. I've taken the spacer out, and had a go at with the drill-press so now I have a nice HDD tray. Have installed an IDE drive in the tray, plugged in the power and data cables that were... (0 Replies)
Discussion started by: Smiling Dragon
0 Replies

7. Shell Programming and Scripting

[Solved] If statement in bash

I have the following code in bash, however "set red frmt" is not displayed. echo "iarg_rd = $iarg_rd" iarg_rd="2" if ; then echo "Hello World" fi if ; then frmt="${gap}${!frmt_titl_yl}" elif ; then frmt="${gap}${!frmt_titl_bk}" elif ; then echo... (2 Replies)
Discussion started by: kristinu
2 Replies

8. Shell Programming and Scripting

[Solved] Using awk to calculate max value

I have a file of sites and each site has a variable number of flow values with a date for each value. I want to determine the max value of flow for each site and output the site number, max value, and date of max value.The format structure (simplified) is the following: Record Site Number ... (5 Replies)
Discussion started by: cparr
5 Replies

9. Shell Programming and Scripting

Bash cript to calculate summarize address

Hi, I need to write a bash script that when i enter two ip address, it will calculate summerize address for them. Examlpe: 192.168.1.27/25 192.168.1.129/25 Result will be: 192.168.1.0/24 can you help me with this script? I even dont know how to start with it (3 Replies)
Discussion started by: Miron
3 Replies

10. Shell Programming and Scripting

Bash to calculate average of all files in directory and output by part of filename

I am trying to use awk to calculate the average of all lines in $2 for every file in a directory. The below bash seems to do that, but I cannot figure out how to capture the string before the _ as the output file name and have it be tab-delimeted. Thank you :). Filenames in... (3 Replies)
Discussion started by: cmccabe
3 Replies
line(1) 						      General Commands Manual							   line(1)

NAME
line - Reads one line from standard input SYNOPSIS
line STANDARDS
Interfaces documented on this reference page conform to industry standards as follows: line: XCU5.0 Refer to the standards(5) reference page for more information about industry standards and associated tags. OPTIONS
None DESCRIPTION
The line command copies one line, up to and including a newline, from standard input and writes it to standard output. Use this command within a shell command file to read from your terminal. The line command always writes at least a newline character. NOTES
The line utility has no internationalization features and is marked LEGACY in XCU Issue 5. Use the read utility instead. EXIT STATUS
Success. End-of-File. EXAMPLES
To read a line from the keyboard and append it to a file, enter: echo 'Enter comments for the log:' echo ': c' line >>log This shell procedure displays the message: Enter comments for the log: It then reads a line of text from the keyboard and adds it to the end of the file log. The echo ': c' command displays a : (colon) prompt. See the echo command for information about the c escape sequence. SEE ALSO
Commands: echo(1), ksh(1), read(1), Bourne shell sh(1b), POSIX shell sh(1p) Functions: read(2) Standards: standards(5) line(1)
All times are GMT -4. The time now is 07:29 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy