ryohori@joho07-itpass:~$ cd ./permission
ryohori@joho07-itpass:~/permission$ mv quiz1.sh.txt quiz1.sh
ryohori@joho07-itpass:~/permission$ ls -la
合計 12
drwxr-xr-x  2 ryohori ryohori 4096  9月  4 23:25 .
drwxr-xr-x 35 ryohori ryohori 4096  9月  4 23:12 ..
-rw---x--x  1 ryohori ryohori 3803  9月  4 23:07 quiz1.sh
ryohori@joho07-itpass:~/permission$ chmod 755 quiz1.sh
ryohori@joho07-itpass:~/permission$ ls -la
合計 12
drwxr-xr-x  2 ryohori ryohori 4096  9月  4 23:25 .
drwxr-xr-x 35 ryohori ryohori 4096  9月  4 23:12 ..
-rwxr-xr-x  1 ryohori ryohori 3803  9月  4 23:07 quiz1.sh
ryohori@joho07-itpass:~/permission$ quiz1.sh