Friday, May 6, 2022

[SOLVED] Correct Formatting of Multiple Condition Bash IF Statement

Issue

I am trying to use an IF statement to:

  1. Check if a server is UP
  2. Check if a file exists on the server

My Code So Far

hostname="somehost.com"
file="somefile.txt"
URL="https://${hostname}/some/directory/${file}"
if [ "ping -c 1 -W 1 ${hostname} 2>/dev/null" ] & [ "wget --spider ${URL} 2>/dev/null" ];
then
echo -e "${hostname} is UP and ${file} is AVAILABLE"
else
echo -e "${hostname} is DOWN or ${file} is UNAVAILABLE"
fi

I have tried testing the IF statement by entering an incorrect hostname and an incorrect file but, the result is incorrect.

Current Output

somehost.com is UP and somefile.txt is AVAILABLE

Expected Output

somehost.com is DOWN and somefile.txt is DOWN

Solution

expression1 && expression2

True if both expression1 and expression2 are true.

expression1 || expression2

True if either expression1 or expression2 is true.

The && and || operators do not evaluate expression2 if the value of expression1 is sufficient to determine the return value of the entire conditional expression.

From: https://www.gnu.org/software/bash/manual/bash.html#Compound-Commands



Answered By - Nic3500
Answer Checked By - Katrina (WPSolving Volunteer)
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