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fragtion/linux hacks and shortcuts

Last active January 6, 2025 09:20
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linux hacks and shortcuts
#Expand /tmp (if tmpfs)
mount -o remount,size=5G /tmp/
# Clone to multiple disks with progress
dd if=/dev/sda | pv -s $(blockdev --getsize64 /dev/sda) | tee >(dd of=/dev/sdb) | tee >(dd of=/dev/sdc) | dd of=/dev/sdd
# faster... and source can be image or device
pv /dev/sda | tee >(dd bs=64k of=/dev/sdb) >(dd bs=64k of=/dev/sdc) >(dd bs=64k of=/dev/sdd) | dd bs=64k of=/dev/sde
# wiretap server
nohup $(WIRETAP_RELAY_INTERFACE_PRIVATEKEY="..." WIRETAP_RELAY_INTERFACE_PORT="51820" WIRETAP_RELAY_PEER_PUBLICKEY="..." WIRETAP_RELAY_PEER_ENDPOINT="remote-addr:remote-port" WIRETAP_RELAY_INTERFACE_IPV4=172.20.0.1 WIRETAP_RELAY_INTERFACE_LOCALHOSTIP=172.20.0.1 WIRETAP_RELAY_PEER_ALLOWED=172.20.0.2/32,0.0.0.0/0 wiretap serve --simple -q) > /dev/null 2>&1 &
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