コマンド完了後の持続時間、開始時間、終了時間

コマンドが完了したら、次のレポートを受けたいと思います。

Start Time: 02/01/21 01:27pm
End Time: 02/01/21 02:29pm
Total Duration: 01 Hour 02 Minutes

を使用して開始時間と終了時間を取得できることがわかりましたdate +"%d/%m/%y %I:%M%P"。

例えば、

start=$(date +"%d/%m/%y %I:%M%P")
start_duration=$(date +%s)
youtube-dl
end=$(date +"%d/%m/%y %I:%M%P")
end_duration=$(date +%s)
runtime=$((end_duration-start_duration))
echo "Start Time: ${start}"
echo "End Time: ${end}"

問題はほとんどありません。

1. 印刷する方法がわかりません。Total Duration: 01 Hour 02 Minutes
2. youtube-dlこのスクリプト内だけでなく、すべてのコマンドを使用できるようにこのスクリプトを一般化するにはどうすればよいですか？

私は試した:

#! /bin/bash

Before=$(date +%s)
echo "$Before"
exec "$@"
ret=$?
After=$(date +%s)
echo "$After"
let Duration=After-Before
echo "$Duration"

if [[ $ret -eq 0 ]]
then
    echo "Start Time: ${Before}"
    echo "End Time: ${After}"
    echo "Total Duration: ${Duration}"
    return $ret
else
    echo "Error: Command [ $@ ] returned $ret"
    echo "Start Time: ${Before}"
    echo "End Time: ${After}"
    echo "Total Duration: ${Duration}"
    return $ret
fi

しかし、私が使用すると動作しませんctrl+c

$ ./reporttime tail -f ~/.xsession-errors
Cinnamon warning: Log level 128: posix_spawn avoided (fd close requested)
Cinnamon warning: Log level 128: posix_spawn avoided (fd close requested)
Cinnamon warning: Log level 128: posix_spawn avoided (fd close requested)
Cinnamon warning: Log level 128: posix_spawn avoided (fd close requested)
Cinnamon warning: Log level 128: posix_spawn avoided (fd close requested)
Cinnamon warning: Log level 128: posix_spawn avoided (fd close requested)
Cinnamon warning: Log level 128: posix_spawn avoided (fd close requested)
Cinnamon warning: Log level 128: posix_spawn avoided (fd close requested)
Cinnamon warning: Log level 128: posix_spawn avoided (fd close requested)
Cinnamon warning: Log level 128: posix_spawn avoided (fd close requested)
Cinnamon warning: Log level 128: posix_spawn avoided (fd close requested)
^C

実際、その後は何も実行できません。exec "$@"

% ./reporttime cat reporttime
1609655953
#! /bin/bash

Before=$(date +%s)
echo "$Before"
exec "$@"
ret=$?
After=$(date +%s)
echo "$After"
let Duration=After-Before
echo "$Duration"

if [[ $ret -eq 0 ]]
then
    echo "Start Time: ${Before}"
    echo "End Time: ${After}"
    echo "Total Duration: ${Duration}"
    return $ret
else
    echo "Error: Command [ $@ ] returned $ret"
    echo "Start Time: ${Before}"
    echo "End Time: ${After}"
    echo "Total Duration: ${Duration}"
    return $ret
fi%