For Rinat

#!/bin/sh

LOCKFILE="/tmp/script.lock"
LOGFILE="/tmp/script.log"
COMMAND="/usr/bin/php7 /home/rinat/myscript.php"

(
    if flock -n 200
    then
        echo "["$(date)"] Running command $COMMAND" | tee -a $LOGFILE
        eval $COMMAND 2>&1 | {
            while read -r line
            do echo "["$(date)"] $line"
            done
        } | tee -a $LOGFILE
        echo "["$(date)"] Command finished with code ${PIPESTATUS[0]}" | tee -a $LOGFILE
    else
        echo "["$(date)"Failed to acquire lock" | tee -a $LOGFILE
    fi
) 200>$LOCKFILE