nwatch <time> <command>

nwatch.sh

 1 #!/bin/bash 
 2
 3 #
 4 # nwatch <time <command>
 5 #
 6
 7 catch_exit() {
 8   printf "\e[2J\e[?47l\e[?25h\e8"
 9   stty sane
10   exit 130
11 }
12 trap catch_exit INT
13
14 if [ -z "$1" ]; then
15   printf "No time given\n"
16   printf 'Usage: %s <time> <command>\n' "$(basename "$0")"
17   exit
18 else
19   if [ -z "$2" ]; then
20     printf "No command given\n"
21     printf 'Usage: %s <time> <command>\n' "$(basename "$0")"
22     exit
23   else
24     command="${*:2}"
25
26     printf "\e7\e[?47h\e[1J\e[?25l" # Init
27     while true; do
28       printf "\e[H"
29       printf "\e[1mEvery $1 sec:\e[0m $command\e[0K\n\e[0K\n"
30       eval "$command"
31       [ "$?" -eq 130 ] && catch_exit
32       printf "\e[0J"
33       sleep "$1"
34       [ "$?" -eq 130 ] && catch_exit
35     done
36   fi
37 fi
38