./patch.sh not working on Ubuntu

[mnguyen081002]

RUN "./patch.sh"

Directory:

Output:
ramdisk.img: 1 file pushed, 0 skipped. 636.0 MB/s (1520108 bytes in 0.002s)
./patch.sh: 5: [[: not found
./patch.sh: 6: [[: not found
busybox: 1 file pushed, 0 skipped. 117.4 MB/s (2074240 bytes in 0.017s)
process.sh: 1 file pushed, 0 skipped. 101.5 MB/s (11525 bytes in 0.000s)

***** Grab magisk.zip or magisk.apk first ! *****

adb: error: failed to stat remote object '/data/local/tmp/ramdisk.img': No such file or directory

[fuad00]

use bash instead of sh "bash patch.sh", not "./patch.sh"