开云体育

Hello Rich,

I have written a little script that you may find useful. You can see it
below, and I've attached a copy of it that can be run from a terminal.

Best regards,
Larry
Wb6BBB

=============================================================================
# show_drives.sh Display Labels and UUIDs of media
# LGD: Wed May 24 06:35:20 PDT 2017
# Re-write Fri Jun 9 04:31:03 PDT 2017
# Written as an exercise in shell script programming. LDighera@...
#

trap "setterm -foreground white;echo;exit 1" HUP 1 ERR INT QUIT TERM 15 #
trap -l will display signals (bash only)

# Put commands in the environment as positional parameters to execute
set "lsblk -f" "lsblk -a" "fdisk -l" "findmnt -A" "findmnt -D" "findmnt -D
-A" "df -Th"

# Prompt user for input
PRMPT="Enter to continue [Q]: "
WAIT(){
### ksh 'read' syntax: ksh man page line 2227 (vname?prompt) ####
[[ $(echo $SHELL |grep ksh) ]] && READ="read -n 1 REPLY?\"${PRMPT}\"" #
ksh read syntax
#### bash 'read' syntax: bash man page line 4335 (-p prompt) ####
[[ -n $BASH ]] && READ="read -n 1 -r -p \"${PRMPT}\"" #
bash read syntax (-r, no varname)
eval ${READ} #
Issue prompt for next page
[[ $REPLY != [Qq]* ]] && setterm -foreground white && return #
Return to caller
[[ $REPLY == [Qq]* ]] && setterm -foreground white #
User request to quit received
echo -e "\033[0m";exit #
Set the Xterminal foreground=black; background=white
}

# Dynamically generate header and footer lines equal to the length of the
longest line of the output of the current command with the command-name
centered in the middle of the header line
GENLIN(){
CMDLEN=$(echo "$1"|wc -m) #
The length of the current command
LEN=$(eval "$1"|wc -L) #
The length of the longest line generated by the current command passed as an
argument to this function
MIDLIN=$((( ($LEN / 2) - $(echo $1|wc -m)+2 ))) #
The mid-point of the line at which to place the current command in the
header
[[ $2 != "end" ]] && LEN=$((( $LEN - $CMDLEN ))) #
Deduct the length of the command line from the header length for footer
for i in $(seq $LEN) ;do #
Loop through the commands
echo -e "=\c" #
Print each line characters
[[ $i == $MIDLIN && $2 != "end" ]] && echo -e " $1 \c" #
Center the command-name in the header line
done
echo
}

CURROW=$(stty -a |grep rows|awk -F \; '/rows/ {print $2}'|tr -d '[a-z A-Z]')
# Get the number of terminal rows/lines (cursor row position at bottom of
screen)
[[ -n $BASH ]] && CURROW=$((( $CURROW - 1 ))) #
fucking bash :-)
while : ;do
GENLIN "$1" #
Print output header line
eval "$1" #
Print command output
GENLIN "$1" "end" #
Print output footer line
echo
shift #
Get the next command to run
[[ -z $1 ]] && { echo;exit ;} #
Exit when command list is exhausted
setterm -foreground green;WAIT;setterm -foreground white #
Color prompt for user input
echo -e "\033[0m\c" #
Set Xterminal foreground=black; background=white
tput cup $((($CURROW - 1))) 0 #
Over-write the prompt line
done
exit 0
=============================================================================