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Full Discussion: If condition on shell not working , not sure what is the mistake I am doing?
Top Forums Shell Programming and Scripting If condition on shell not working , not sure what is the mistake I am doing? Post 303034951 by Varja on Thursday 9th of May 2019 11:51:09 PM
Old 05-10-2019
If condition on shell not working , not sure what is the mistake I am doing?
I have a requirement to perform specific set of tasks based on server , So I want to have the condition(s) defined based on server. Here is the script I came up with and I have read multiple blogs and couldn`t find any mistake from my script. Can you guide on what I am overlooking here ?

Code:
#!/bin/bash
SERVER_NAME=`hostname -s`
hostname -s
DBServer=(servr1 servr2 servr3 servr4)
echo "Values of DBServer seeing is ${DBServer[*]}"
Values of DBServer seeing is servr1 servr2 servr3 servr4
for i in ${DBServer[*]}
do
  echo "current value in I is $i"
  echo "The server name found is $SERVER_NAME"
  if [$SERVER_NAME == $i]
  then
    echo "I am on one of the servers and it is $i"
  fi
done

Output I see on server is

Code:
current value in I is servr1
The server name found is servr1
-bash: [servr1: command not found
current value in I is servr2
The server name found is servr1
-bash: [servr1: command not found
current value in I is servr3
The server name found is servr1
-bash: [servr1: command not found
current value in I is servr4
The server name found is servr1
-bash: [servr1: command not found

Last edited by Varja; 07-24-2019 at 01:09 AM..
 

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LEARN ABOUT MOJAVE

platform::shell

platform::shell(n)					       Tcl Bundled Packages						platform::shell(n)

__________________________________________________________________________________________________________________________________________________

NAME

       platform::shell - System identification support code and utilities

SYNOPSIS

       package require platform::shell ?1.1.4?

       platform::shell::generic shell
       platform::shell::identify shell
       platform::shell::platform shell
_________________________________________________________________

DESCRIPTION

       The platform::shell package provides several utility commands useful for the identification of the architecture of a specific Tcl shell.

       This  package  allows the identification of the architecture of a specific Tcl shell different from the shell running the package. The only
       requirement is that the other shell (identified by its path), is actually executable on the current machine.

       While for most platform this means that the architecture of the interrogated shell is identical to the architecture of  the  running  shell
       this  is  not generally true. A counter example are all platforms which have 32 and 64 bit variants and where a 64bit system is able to run
       32bit code. For these running and interrogated shell may have different 32/64 bit settings and thus different identifiers.

       For applications like a code repository it is important to identify the architecture of the shell which will  actually  run  the  installed
       packages, versus the architecture of the shell running the repository software.

COMMANDS

       platform::shell::identify shell
	      This command does the same identification as platform::identify, for the specified Tcl shell, in contrast to the running shell.

       platform::shell::generic shell
	      This command does the same identification as platform::generic, for the specified Tcl shell, in contrast to the running shell.

       platform::shell::platform shell
	      This command returns the contents of tcl_platform(platform) for the specified Tcl shell.

KEYWORDS

       operating system, cpu architecture, platform, architecture

platform::shell 						       1.1.4							platform::shell(n)
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