Command Line and Terminal navigation Cheat Sheet by Kyngo (Kyngo) via cheatography.com/131267/cs/26366/ Basics Basics (cont) Basics (cont) cd [path] change your current directory rm [file] removes a file less [file] prints a file using pagination to the specified one rm -rf removes a folder and all of its more [file] same as less [file] cd ~ go to your home folder [file] contents ln -s makes a symbolic link of a cd - go the the folder you were cat [file] prints a file's contents [source] given source at the given before tac [file] prints a file's contents from [desti‐​ destina​ tion ls list the contents of the bottom to top nation] directory sed allows replacing of contents in cal prints a calendar on the ls -lh list the contents of the files with regular express​ ions terminal directory in a human-f​ rie​ ndly grep prints the contents of a given date reports the current date and format [pattern] file that match the given pattern time cp [origin] copies the given file wherever [file] Write (or append to) a file without an [desti‐​ you want to tr -s replaces all concurrent editor nation] [pattern] duplicates of a given pattern mv [origin] moves or renames the given tr replaces the given pattern with cat > [file] << EOF [desti‐​ file [pattern] the given replace​ ment string hello world nation] [repla‐​ this is a file's content pwd get the current directory you're cement] blah blah blah in tr -d removes the given pattern from hello again mkdir create a folder [pattern] a string bye for now EOF [name] head prints the first lines of a given mkdir -p create a folder and all its [file] file In order to append to a file instead of [name] parents, if needed tail [file] prints the last lines of a given replacing all of its contents, add two output chmod change a file's permiss​ ions - file cones instead of only one (>>). 755 Allows the user to read, write cut -f allows you to print specific Command pipeline concate​ nation [name] and execute, and anyone else [field] -d fields from an origin that have a example to just read and execute [separ‐​ given separator chmod change a file's permiss​ ions - ator] curl https:/​ /de​ vel​ ope​ r.an​ dr​ oi‐​ ​ ​ ​ ​ ​ 400 Only the owner will be able to uname gets the OS kernel's name d.com/studio#downloads | grep [name] read the file (Linux, Darwin...) ".dmg​ " | grep href | head -n1 | cut -f2 -d"="​ | tr -d '"' chown changes the owners of a given uname - gets the machine's archite​ cture This command will: user:group file or folder m (if not within an emulator) [name] - download the downlaods page for Android uname -r gets the kernel version Studio chown -R changes the owners of a given uname - shows all the details of your - find for the lines that contain ".dmg​ " within user:group file or folder, and all of its a UNIX OS them [name] contents - filter again to get only those that contain "‐​ touch creates a file with the given href​ " [name] name - filter again to get only the first occurrence file [name] reports the file type - split the result to get only the second field using = as a separator - remove any double quotation marks on the string By Kyngo (Kyngo) Published 29th January, 2021. Sponsored by ApolloPad.com cheatography.com/kyngo/ Last updated 4th May, 2021. Everyone has a novel in them. Finish arnaumart.in Page 1 of 4. Yours! https://apollopad.com Command Line and Terminal navigation Cheat Sheet by Kyngo (Kyngo) via cheatography.com/131267/cs/26366/ Command pipeline concate​ nation Networks Pipelines and operators (cont) example (cont) ifconfig Shows a general network brief [command] appends a file's contents The result should be a link that, when ip addr Same as ifconfig but on << [file] into the program opened, will download the macOS installer show Linux [command1] if command1 succeeds, for Android Studio. nmap Scans the ports of the given IP && command2 will be executed Please note, if the website changes, this [ip]/32 [command2] command may not work as is. ping Send a sequence of ICMP [command1] if command1 fails, || command2 will be executed Manuals [host] packets to a host [command2] whois Tells you informa​ tion about the Almost all programs on any Unix OS will [host] domain & the process will be run in the have what's called a "m​ anp​ age​ ". This is an background instruc​ tion manual with details on how to dig Tells you how a specific !! the last executed command use a program. [domain] domain resolves In order to read the manual for a specific nslookup The same as dig [domain] $? the last command's exit applica​ tion, just type man [applic​ ati​ on] [domain] code and you will be able to read how it works. host Reports several types of [command1] sends the output of Press "Q​ " to close the manual when you're [domain] records for a given domain | command1 to command2's done. [command2] input wget [url] Downloads the given URL to -O [file] the specified file [command] \ allows you to make a line sed examples break without executing the curl [url] - Downloads the given URL to The sed command uses a string as command o [file] the specified file parameter to determine what to oeprate, [command] redirects the command's iftop Allows you to monitor the and can receive several more parameters to 2>&1 stderr to stdout network throughput (Linux) configure the behavior. `[com‐​ runs the given command, netstat - Shows which applica​ tions are sed -i 's/hell​ o/hi/' file.txt will mand]` and then runs the result as a tulpn using what ports (Linux) replace the first instance of "h​ ell​ o" that the command itself script can find at each line, and write the sudo lsof Shows which applica​ tions are result at the same given file. To avoid -i -n -P using what ports (macOS) Remote hosts overwri​ ting, you can just remove the -i ssh [server] connects to a server via argument. Pipelines and operators SSH sed -i 's/hell​ o/h​ i/g' file.txt [command] outputs the result of a ssh [server] -p [port] will replace every instance of "h​ ell​ o" that > [file] command to a file exist in the file. ssh [server] -i [certif​ icate] [command] outputs the result of a To apply the patterns from a file, use the - ​ ​ >> [file] command to the end of a file scp [user]@[s‐ copies a file from a fpar​ ameter with a path to a file. erve​ r]:​ [path] remote server to your [command] gets a file and prints its If you want to make a backup of the file, add [local path] machine < [file] content as if it were you a suffix for said file after the -i parameter. entering it telnet [host] makes a raw tcp For example: [port] connection to a given sed -i".bk​ p"​ 's/hell​ o/h​ i/g' host and port file.txt will generate a file named w reports who's file.tx​ t.bkp with the original contents. connected at the Regular express​ ions can be applied to the machine pattern given to sed, as maybe you want to who same as w replace something that may not be an exact string, but rather a pattern of it. By Kyngo (Kyngo) Published 29th January, 2021. Sponsored by ApolloPad.com cheatography.com/kyngo/ Last updated 4th May, 2021. Everyone has a novel in them. Finish arnaumart.in Page 2 of 4. Yours! https://apollopad.com Command Line and Terminal navigation Cheat Sheet by Kyngo (Kyngo) via cheatography.com/131267/cs/26366/ Remote hosts (cont) Loops and decision taking (cont) Package Managers (cont) whoami tells you your username done choco Windows (Chocol​ atey) ​ ​ For SCP, you can upload from your "If-else if-else" operator Searching machine to a remote server by changing the if [ $UID -eq 0 ] order of the commands. You can also use then find [path] finds anything within a given SSH's parameters with SCP (for port, you echo You are root -name path with a given pattern on must use -P (capita​ l)). elif [ $UID -eq 1 ] [name its name echo You are user with ID 1 pattern] Environ​ ment variables else whereis tells you all the locations for a echo You are NOT root PATH the directo​ ries where the shell [name] given binary name fi will find for the command which tells you the given binary binaries [name] name's path that will be run Permission bits HOME your home directory according to your PATH 0 --- Do nothing UID the user ID locate tells you the location of any 1 --x Execution [name] kind of file within your EUID the user ID running the machine command 2 -w- Write SHELL your current shell 3 -wx Execute and write Monitoring the OS PS1 your prompt's style 4 r-- Read ps prints a snapshot of all system 5 r-x Read and execute PWD your current directory aux processes 6 rw- Read and write RANDOM random number top shows the processes running on HOST the host's name 7 rwx Read, write and execute the machine LANG the shell's language Here "r​ " stand for "r​ ead​ ", "w​ " stands for "‐​ htop shows the processes running on TTY your current session's TTY writ​ e", and "x​ " stands for "e​ xec​ ute​ ". It may the machine with some graphs for be useless to have permiss​ ions below 4, as memory usage Loops and decision taking you won't be able to read the file.