bash profile setting

nagavinodh · 12-11-2009, 12:21 AM

hi,

i tried to set the apache home in red hat.we have two apache home one is default and another one is istalled newly.
we create the user apache.

bash_profile

echo please type the apache home
read c
a=new
if $c=$a
then
export APACHE_HOME=/usr/local/apache2
PATH=$PATH:$APACHE_HOME/bin
else
export APACHE_HOME1=/etc/httpd
fi

we got the following errors

please type the apache home
new
-bash: new=new: command not found

is it possible to set the two apache homes in same bash profile.

jhwilliams · 12-11-2009, 12:36 AM

This should solve your problem -- change the line

Code:

if $a=$c

to

Code:

if [ "$a" = "$c" ]

kbp · 12-11-2009, 12:41 AM

Tests need to be in square brackets '[]'

eg.
if [ $c = $a ]
then
# do something

fi

I usually put strings in double quotes and leave numbers bare

eg
STRING1="some garbage"
if [ "$STRING1" = "hello" ] ....

COUNT=5
if [ $COUNT -eq 7 ] ...

Please note there are different types of tests depending on the data types, here's a reference:
http://www.oreillynet.com/linux/cmd/cmd.csp?path=t/test

cheers

chrism01 · 12-11-2009, 01:37 AM

Double brackets [[ ]] is more robust http://tldp.org/LDP/abs/html/testcon...ml#DBLBRACKETS

catkin · 12-11-2009, 01:44 AM

What kpb wrote except [[ ]] is preferred for testing over [ ].