29 lines
649 B
Markdown
29 lines
649 B
Markdown
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# Linux Cheats
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## Arduino
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Find what 'channel'(?) the Arduino is plugged in at:
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`dmesg | grep tty`
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Do following commands to "talk" with an Arduino (with a set script):
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> python
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> import serial
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> ser = serial.Serial('/dev/ttyACM0',115200)
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> ser.readline()
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> ser.write("PP\n")
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---
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## SSH
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Copy files to/from an SSH connection: (SSH format: `user@host:/path` )
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> `scp <source> <destination>`
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Recursivly give directories execute privileges: (`-type f` for files instead)
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> `find /path/to/base/dir -type d -exec chmod +c {} +`
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---
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## GROUPS
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Create groups
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> `groupadd <groupName>`
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Add user to a group
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> `usermod -a -G <group> <user>`
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