47 lines
1.1 KiB
Text
47 lines
1.1 KiB
Text
|
#!/bin/zsh
|
|||
|
|
# Eryn Wells <eryn@erynwells.me>
|
|||
|
|
|
|||
|
|
MOTD_FILE=/etc/motd
|
|||
|
|
|
|||
|
|
binary_exists() {
|
|||
|
|
hash $1 1>/dev/null 2>&1
|
|||
|
|
return $?
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if [[ ! -w "$MOTD_FILE" ]]; then
|
|||
|
|
echo "$MOTD_FILE is not wrtiable by $USER" >&2
|
|||
|
|
exit 1
|
|||
|
|
fi
|
|||
|
|
|
|||
|
|
# If lolcat is installed, dump a colorful message to the MOTD file. :)
|
|||
|
|
local cat_program=cat
|
|||
|
|
local cat_args=''
|
|||
|
|
if binary_exists lolcat; then
|
|||
|
|
echo "Enabling rainbows"
|
|||
|
|
cat_program=lolcat
|
|||
|
|
cat_args=-f
|
|||
|
|
fi
|
|||
|
|
|
|||
|
|
local hello_message="\nThis machine is called `hostname`.\n"
|
|||
|
|
|
|||
|
|
local hardware_model=`sysctl -n hw.model`
|
|||
|
|
|
|||
|
|
if [[ -n "$hardware_model" ]]; then
|
|||
|
|
hello_message+="It’s a $hardware_model "
|
|||
|
|
fi
|
|||
|
|
|
|||
|
|
local os_version=`sysctl -n kern.osproductversion`
|
|||
|
|
local product_name=`sw_vers --productName`
|
|||
|
|
local os_build=`sw_vers --buildVersion`
|
|||
|
|
|
|||
|
|
if [[ -n "$os_version" && -n "$os_build" ]]; then
|
|||
|
|
hello_message+="running $product_name $os_version ($os_build)."
|
|||
|
|
elif [[ -n "$os_version" ]]; then
|
|||
|
|
hello_message+="running $product_name $os_version."
|
|||
|
|
fi
|
|||
|
|
|
|||
|
|
hello_message+="\n"
|
|||
|
|
|
|||
|
|
echo "Writing MOTD"
|
|||
|
|
print -P $hello_message | $cat_program $cat_args > $MOTD_FILE
|