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PenguinCSC
Asked: 2020-11-25 07:58:04 +0800 CST

BASH Script to run a command only if a host is alive

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I want to create a BASH script to run a command after verifying a host is alive. I was thinking of using the fping command, but I can't figure out how to create a conditional loop to proceed with running the command I need to run only if the host I am fpinging is up. If I run the command before the host is available, I need to restart the whole machine...

scripts command-line bash

1 Answers

  1. Probably something like this:

    if fping -q $MYHOST; then
  do my command
fi

    Alternatively, this may make sense

    if ! fping -q $MYHOST; then
  # exit on error
  echo "host $MYHOST is not alive"
  exit 1
fi
do more commands
bla bla bla
    • 1