View source for Linux CLI commands I Cannot Remember...

===Random CLI Commands===
htop - graphical process monitor<br>
iptraf - graphical IP traffic monitor<br>
meshmap - HSMM mesh map generator<br>
figlet - make ASCII letters<br>
chirpw - radio programming<br>
camgrab - CLI webcam pic grabber<br>
pwgen - password generator<br>
links2 - ncurses web browser<br>
inxi -Fx - System information<br>
weather - cli weather info<br>
<code>telnet rainmaker.wunderground.com</code>

===CLI Commands with some useful syntax===
* list the fingerprint of key <code>ssh-keygen -lf ~/.ssh/id_rsa.pub </code>
*parse fail2ban logs
#<code>cat /var/log/fail2ban.log | grep Ban | awk '{print $6,$7,$1,$2}' | uniq </code><br>
#<code>sudo cat fail2ban.log | grep Ban | awk '{print $8}' | sort | uniq -c </code><br>
#<code>sudo cat /var/log/fail2ban.log | grep Ban | awk '{print $8,$7}' | sort | uniq -c </code><br>
* useless waste of time and peta-flops <code>cat /dev/urandom | hd | grep "ca fe"</code>
*Scrape 1FC data from RadioReference
** parse RadioReference.com 1FC data from website and save CCs to list <code><nowiki> wget -O 1fc.html http://www.radioreference.com/apps/db/?sid=7118 && cat 1fc.html | sed 's/[a-zA-Z<>="\/: #-]/ /g' | grep "[7,8][5,6,7][0-9].[0-9][0-9][0-9][0-9][0-9]c" | awk '{ print $6 }' > 1fc.cc </nowiki></code> 
**or the new version <code><nowiki>wget -O 1fc.html http://www.radioreference.com/apps/db/?sid=7118 && cat 1fc.html | grep '[7,8][0-9][0-9].[0-9]\+c' | sed 's/[><]/ /g' | awk '{print $6}' | sort -un > 1fc.cc && wc -l 1fc.cc >> 1fc.cc && cat 1fc.cc | sed 's/1fc.cc/Control Channels/g' > 1fc.txt && cat 1fc.txt</nowiki></code>

** parse the 1fc.html data for ALL freqs in use <code><nowiki>cat 1fc.html | grep "[7,8][0-9][0-9].[0-9][0-9][0-9][0-9][0-9]" | sed 's/[a-zA-Z<>="\/: #-]//g' > 1fc.all</nowiki></code><br>
* read the "p" text in a news webpage <code><nowiki>cat index.html | grep '<p>' | sed 's/<[^<>]*>//g' | sed 's/[^>]*>//g' | sed 's/<[^<]*//g' | sed 's/MORE//g' | festival --tts</nowiki></code><br>
* working outbound mail CLI <code>cat /var/log/apache2/error.log | mail -s "Apache Error Logs" mail@domain.tld</code><br>
* open udp ports for chromecast <code>iptables -I INPUT -p udp -m udp --dport 32768:61000 -j ACCEPT</code><br>
* working RTL-SDR ADS-B webserver <code>$PATH/dump1090 --raw --net --net-http-port 8008 & mono $PATH/VirtualRadar.exe</code><br>
* modify file timestamp <code>touch -t YYYYMMDDHHMM filename.ext</code><br>
* rename images by their EXIF timestamp <code><nowiki>exiv2 -r'%Y%m%d_%H%M%S' -F *.JPG</nowiki></code> and <code><nowiki>exiv2 -r'%Y%m%d_%H%M%S_COMMENT_STUFF' -F *.JPG</nowiki></code><br>
* EAS decoder <code>multimon-ng -a EAS -t wav $FILE</code><br>
* rtl-fm play audio localy broadcast FM <code>rtl_fm -g 50 -f 99.9M -M wfm -s 180k -E deemp | play -r 180k -t raw -e s -b 16 -c 1 -V1 - lowpass 16k</code><br>
* lock screen rotation in Ubuntu 18.04 on HP ProBook 6560b <code><nowiki>gsettings set org.gnome.settings-daemon.plugins.orientation active false</nowiki></code>
* imagemagick perspective with tiling <code>convert flag.jpg -virtual-pixel tile -distort Perspective '0,0 30,55 2121,0 917,35 0,1414 55,1111 2121,1414 820,707' flagA.jpg</code>
* imagemagick add watermark/overlay with opacity <code>convert flagA.jpg -resize 1024x1024 miff:- | composite -dissolve 37% -gravity center overlay.png - overlayflag.png</code>

===More than commands...===
*Add swap space in Ubuntu 18.04LTS
** [[Add swap space in Ubuntu 18.04LTS | Directions Here]]
**from - [https://linuxize.com/post/how-to-add-swap-space-on-ubuntu-18-04/ https://linuxize.com/post/how-to-add-swap-space-on-ubuntu-18-04/]
**