~dricottone/my-utils

ref: 618b5e7801dd9bdc6100b6ed88f04d9dcd75a3ab my-utils/src/pingable -rwxr-xr-x 541 bytes
618b5e78 — Dominic Ricottone Slight refactor of a usage message 3 years ago 
                                                                                
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#!/bin/sh

name="pingable"
version="1.0"
help_message=$(/usr/bin/cat <<-EOF
	Check if an address or name is ping-able
	Usage: pingable [ ADDRESS | NAME ]
	Options:
	 -h, --help     print this message and exit
	 -v, --version  print version number and exit
EOF
)

# Note: `ping` will set the return code to...
#  0 on success
#  1 on failure to ping
#  2 on name resolution failure for most (i.e. Linux) platforms
# 68 on name resolution failure for some (i.e. macOS) platforms

. /usr/local/lib/myminiparse.sh

ping -c 1 $1 >/dev/null 2>&1