Basic Linux (Debian) Commands
Time information
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# Command: timedatectl root@debian:/home/pi# timedatectl Local time: Sun 2017-06-25 16:37:23 CEST Universal time: Sun 2017-06-25 14:37:23 UTC RTC time: Sun 2017-06-25 14:37:21 Time zone: Europe/Vienna (CEST, +0200) NTP enabled: no NTP synchronized: no RTC in local TZ: no DST active: yes Last DST change: DST began at Sun 2017-03-26 01:59:59 CET Sun 2017-03-26 03:00:00 CEST Next DST change: DST ends (the clock jumps one hour backwards) at Sun 2017-10-29 02:59:59 CEST Sun 2017-10-29 02:00:00 CET |
Show space on mounted harddrives (human readable)
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# Command df -h root@debian:/home/pi# df -h Filesystem Size Used Avail Use% Mounted on /dev/sda1 189G 26G 154G 15% / udev 10M 0 10M 0% /dev |
Show information attached HD
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# Command ls -l /sys/block/sd* | sed 's/.*\(sd.*\) -.*\(ata.*\)\/h.*/\2 => \1/' root@debian:/home/pi# ls -l /sys/block/sd* | sed 's/.*\(sd.*\) -.*\(ata.*\)\/h.*/\2 => \1/' ata3 => sda |
Show information about harddrive
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# Command: hdparm -I /dev/sda # maybe you have to install hdparm with (apt-get install hdparm) root@debian:/home/pi# hdparm -I /dev/sda /dev/sda: ATA device, with non-removable media Model Number: VBOX HARDDISK Serial Number: VB7749bd7c-37a37909 Firmware Revision: 1.0 Standards: Used: ATA/ATAPI-6 published, ANSI INCITS 361-2002 Supported: 6 5 4 Configuration: Logical max current cylinders 16383 16383 heads 16 16 sectors/track 63 63 -- CHS current addressable sectors: 16514064 LBA user addressable sectors: 268435455 LBA48 user addressable sectors: 419430400 Logical/Physical Sector size: 512 bytes device size with M = 1024*1024: 204800 MBytes device size with M = 1000*1000: 214748 MBytes (214 GB) cache/buffer size = 256 KBytes (type=DualPortCache) Capabilities: LBA, IORDY(cannot be disabled) Queue depth: 32 Standby timer values: spec'd by Vendor, no device specific minimum R/W multiple sector transfer: Max = 128 Current = 128 DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6 Cycle time: min=120ns recommended=120ns PIO: pio0 pio1 pio2 pio3 pio4 Cycle time: no flow control=120ns IORDY flow control=120ns Commands/features: Enabled Supported: * Power Management feature set * Write cache * Look-ahead * 48-bit Address feature set * Mandatory FLUSH_CACHE * FLUSH_CACHE_EXT * Gen2 signaling speed (3.0Gb/s) * Native Command Queueing (NCQ) Checksum: correct |
Unpack .tgz files
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#unpack in the same folder tar zxvf file.tgz #unpack in a different location tar zxvf file.tgz -C /path/to/desination |
Unpack .zip files
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apt-get install unzip unzip file.zip |
Find files
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"find" "path" "type" "Name" find / -name "EXAMPLE" |