Would like to know how to use the IF...THEN...ELSE statements in C shell
Hi
I've only been using Unix for a few weeks but am really impressed with its capabilities and ease of use.
I am, however, struggling with a shell script at the moment.
I would like automated reports on Disk Usage and available free space. I've written a straight forward script that will do this for me and I'll be dealing with the crontab later to automate it.
I currently use about 20 different servers and the reports are written to a central location. The properties of these servers vary slightly so that the disk name isn't always the same.
I've tried using multiple greps but it doesn't work as I'd planned. Therefore, I'd like to you an IF THEN ELSE statement.
Here is the current code:
Code:
#!/bin/csh
#
#################################################################
#Script to get disk usage of server #
#Creates unique txt file based on server and username #
#################################################################
#
#
touch `uname -n`_`echo $USER`
rm /xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
touch /xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
echo Processing...
echo "******************************************************" >>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
echo -n "DATE: " >>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
date >>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
echo -n "CURRENT SERVER: " >>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
uname -n >>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
echo "CURRENT ORACLE USER: "$USER >>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
echo "******************************************************" >>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
#
#################### Available Disk Space #######################
#
echo "">>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
echo "******************* DISK SPACE ***********************" >>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
cd /
echo -n " DISK SIZE ">>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
df -h | grep '^/dev/dsk/' | grep /dis* | awk '{ print $2}' >>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
echo -n " USED ">>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
df -h | grep '^/dev/dsk/' | grep /dis* | awk '{ print $3}' >>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
echo -n " AVAILABLE ">>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
df -h | grep '^/dev/dsk/' | grep /dis* | awk '{ print $4}' >>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
echo -n " CAPACITY IN USE ">>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
df -h | grep '^/dev/dsk/' | grep /dis* | awk '{ print $5}' >>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
echo -n " MOUNTED ON ">>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
df -h | grep '^/dev/dsk/' | grep /dis* | awk '{ print $6}' >>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
echo -n " FILE SYSTEM ">>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
df -h | grep '^/dev/dsk/' | grep /dis* | awk '{ print $1}' >>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
echo "******************************************************">>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
#
#
################### Disk Usage Part #############################
echo "">>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
echo "******************* DISK USAGE ***********************" >>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
echo "Starting point for " >>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
cd ../../../../../
pwd >>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
du -h * | awk '{ print $0}' | grep '[0-9]G'>>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
#
#
#################### User Part ##################################
echo "">>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
echo "">>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
echo "******* The Oracle users on this server are **********" >>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
grep '^xxx' /etc/passwd >>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
grep '^xxx' /etc/passwd >>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
grep '^xxx' /etc/passwd >>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
grep '^xxx' /etc/passwd >>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
grep '^xxx' /etc/passwd >>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
grep '^xxx' /etc/passwd >>/xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
clear
more /xxxxx/disk_usage_output/`uname -n`_`echo $USER`.rpt
I would like to have various versions of the 'Available Disk Space' part so I can be 'server specific'. I'd like to have the script determine the server name (uname -n) and if that equals a certain value (eg SERVER1) then goto the disk space code specific to SERVER1, else, proceed to next command.
I'm not sure how I carry this out - if anyone can help I'd really appreciate it.
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rob
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Good morning all!
I want to know if Im interpreting this if statement below right.
if(((1) || (0)) && (1)){
do stuff;
}
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What does the && stand for?
thanks in advance!
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