Why doesn't yc work through crontab?

Question

PHP

knotab - " * * * * * php /usr/share/asterisk/agi-bin/calling/token.php "

token file

exec('cd /usr/share/asterisk/agi-bin/calling
yc iam create-token > /usr/share/asterisk/agi-bin/calling/log2.txt');

nothing in log2.txt, if you run it through cron, if you run the file manually, then everything works, why doesn't it work?

Answer 1

what is the command
cd /usr/share/asterisk/agi-bin/calling /
why are there two paths?
what is the command
yc iam create-token > /usr/share/asterisk/agi-bin/calling/log2.txt
yc in PATH somewhere in your cron?

Answer 2

I thank everyone who helped
The decision to specify the path to yc, in my case this code completed its task

exec('/root/yandex-cloud/bin/yc iam create-token > /usr/share/asterisk/agi-bin/calling/log2.txt');

Full path to YC