linux - Get the time when nohup R program finishes -


i want time when program finish. show same time. here shell script. show start time same end time. how fix that?

start=$(date +"%r")  nohup rscript program_1.r >program_1.rout & wait & echo start time = $start\n end time = " `date +"%r"`";

you sending r script background, date executed immediately.

instead of

date +%r; sleep 5 & date +%r

do

date +%r; (sleep 5; date +%r) &

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