Favorite Linux Commands
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"sudo !!", "tail -f", the unholy trinity that is "grep/awk/sed", and vim (all from within tmux).
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@coliver said:
@travisdh1 said:
crtl+r(history search)
This one I didn't know this will be extremely helpful.
Ya it's nice, ctrl+a, ctrl+e, and ctrl+d are nice too so you can stay at "home" on the keyboard.
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@RamblingBiped said:
"sudo !!", "tail -f", the unholy trinity that is "grep/awk/sed", and vim (all from within tmux).
I don't use awk as much as I should, I essentially use it for a glorified csv reader haha
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http://www.tecmint.com/20-funny-commands-of-linux-or-linux-is-fun-in-terminal/
"sl" is one of my favs.
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I use SNMPv3 alot from the CLI:
snmpbulkwalk -v 3 -u myusername -a SHA -A myauthpass -l authPriv -x AES -X myprivpass 10.1.1.1 system
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Hardware commands are always great:
https://www.maketecheasier.com/gather-hardware-information-in-linux
lspci
Anything in /proc
I LOVE LOVE LOVE htop
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I honestly don't like htop very much. I prefer regular top. I find the output more useful.
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@scottalanmiller said:
I honestly don't like htop very much. I prefer regular top. I find the output more useful.
htop works much better to see multi-CPU utilization though. Filtering is really nice too.
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@quicky2g said:
@scottalanmiller said:
I honestly don't like htop very much. I prefer regular top. I find the output more useful.
htop works much better to see multi-CPU utilization though. Filtering is really nice too.
Ah, I never find CPU utilization to be something that I need to watch. Looks neat and impressive on the screen, but once I know the percentage of CPU, I don't care about seeing a chart, but I need to see load numbers, processes and memory stats.
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I use dd a lot
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ok so looking through the list of new posts.... this caught my eye fast
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@johnhooks said:
@MattSpeller said:
@johnhooks said:
@MattSpeller said:
I use dd a lot
boobs
80085?
8008135
what was the one you had to hold the thing upside down for... oh geez lol
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@MattSpeller said:
@johnhooks said:
@MattSpeller said:
@johnhooks said:
@MattSpeller said:
I use dd a lot
boobs
80085?
8008135
what was the one you had to hold the thing upside down for... oh geez lol
ha 7734
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@Minion-Queen said:
ok so looking through the list of new posts.... this caught my eye fast
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List disk info (Lowercase L)
fdisk -l
List hard drive model, serial and capabilities:
hdparm -I /dev/sda
Hard drive speed:
hdparm -t /dev/sdd
Hard drive temperature:
hddtemp -u C -n /dev/sda
What software a web server is running:
curl -I http://www.newegg.com
Kernel buffer messages:
dmesg
File transfer with active speed:
rsync --progress --recursive source/* destincation
Ping sweep a network with NMAP and just show up IP's:
sudo nmap -PO -sP -PE -n --open -v 10.1.1.1-10 | grep "scan report" | grep -v "host down" | sed 's/Nmap scan report for //g'
Only show down/available IP's:
sudo nmap -PO -sP -PE -n --open -v 10.1.1.1-10 | grep "host down" | sed 's/Nmap scan report for //g' | sed 's/ [host down]//g'
Ping a TCP port:
nping --tcp -p 80,443 www.newegg.com
Stress test packets per second with ICMP (5,000 pings sent at rate of 100k per second):
nping --icmp 10.1.1.1 --rate 100000 -c 5000
QoS EF ping:
ping -Q 0xB8 10.1.1.1
Packet capture (CTRL + C when done):
sudo tcpdump -i eth0 -w testing.pcap
View a packet capture for ICMP:
tcpdump -r testing.pcap -nnvvvSe | grep ICMP
That's about all I got right now.
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Some "not so standard" useful IP address stuff:
ip addr show eth0 ip -s link show eth0