Created
January 5, 2014 03:10
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ifchanged
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| badopts() | |
| { | |
| echo -e "Usage: ifchanged [command to check] [number of seconds to wait between checks] [command to execute if not changed] [command to execute if changed]" | |
| exit | |
| } | |
| if [ $# -ne 4 ]; then | |
| badopts | |
| else | |
| while true; do | |
| RES=`$1` | |
| sleep $2 | |
| NOW=`$1` | |
| if [ "$RES" = "$NOW" ]; then | |
| $3 | |
| else | |
| $4 | |
| fi | |
| done | |
| fi | |
| exit |
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