Create the file /etc/profile.d/bash_aliases.sh which will contain all the aliases.

/etc/profile.d/bash_aliases.sh

# If user is not root, pass all commands via sudo.
#if [ $UID -ne 0 ]; then
#    alias reboot='sudo reboot'
#    alias update='sudo apt-get upgrade'
#fi
 
 
# Instruct bash to expand the arguments to aliases.
shopt -s expand_aliases
 
#-------------------------------------------------------------
# Protection for these commands; which will prompt before overwriting.
#-------------------------------------------------------------
 
# Do not delete / and prompt before deleting.
alias rm='rm -i --preserve-root'
 
alias cp='cp -i'
alias mv='mv -i'
alias ln='ln -i'
 
# Preventing changing perms on /
alias chown='chown --preserve-root'
alias chmod='chmod --preserve-root'
alias chgrp='chgrp --preserve-root'
 
alias rmdir='rm -Rf $1'                          # To remove directories and their contents.
alias rmtrash='mv --force -t ~/.local/share/Trash '  # Toss files into the Trash bin.
 
 
#-------------------------------------------------------------
# APT.
#-------------------------------------------------------------
 
# List APT repositories.
alias aptlist='cat /etc/apt/sources.list{,.d/*} 2>/dev/null | grep -v "^#"'
 
 
#-------------------------------------------------------------
# Archiving.
#-------------------------------------------------------------
 
# Compress with one of the best comp. algos out there + 7z format is platform agnostic.
alias 7zadd='7z a -t7z -m0=lzma -mx=9 -mfb=64 -md=64m -ms=on'
 
 
#-------------------------------------------------------------
# Backup.
#-------------------------------------------------------------
 
 
alias rsync='rsync -ravz'                        # Recusive, Archive Mode, Verbose, Compress
alias rsyncssh='rsync -e ssh'                    # Use ssh.
 
alias backuphome='\rsync -avhpr --delete-delay /home/peter /backup/home/peter'
 
 
#-------------------------------------------------------------
# cd
#-------------------------------------------------------------
 
# To pick up when user forgets the space.
alias cd..='cd ..'
 
# Uses cd() function = pushd,
# b = go backwards (popd), f = go forwards (kind of like "unpopd").
alias d='dirs'
alias b='pushd +1'                               # go backwards (popd).
alias f='pushd -0'                               # go forwards (kind of like "unpopd").
 
alias gohome='pushd ~/ > /dev/null'              #
alias goback='popd'                              #
 
# Add many of similar to these...
#alias goproject?"pushd ~/git/project > /dev/null"
#alias gologs?"pushd /var/log > /dev/null"
 
 
#-------------------------------------------------------------
# Clipboard
#-------------------------------------------------------------
 
# Helps with copy and pasting to and from a terminal using X and the mouse.
# Especially for piping output to the clipboard and vice versa.
# Alias names chosen according to what the internet said the corresponding macos commands are.
alias pbcopy='xsel --clipboard --input'
alias pbpaste='xsel --clipboard --output'
 
#echo 'foo' | cpy copies ‘foo’ to the clipboard
#alias cpy="xclip -selection clipboard"
 
alias setclip='xclip -selection c'
alias getclip='xclip -selection clipboard -o'
 
 
#-------------------------------------------------------------
# Copy.
#-------------------------------------------------------------
 
alias cpv='\rsync -ah --info=progress2'           # Progress bar on file copy.  --info=progress2 gives a total percentage.
alias cpv2='\rsync --progress -ravz'              # Progress bar on file copy.  --progress = show progress during transfer.
 
 
#-------------------------------------------------------------
# Date.
#-------------------------------------------------------------
 
alias week='date +"%V"'                          # Week of the year.
 
# View the calender by typing the first three letters of the month.
alias jan='cal -m 01'
alias feb='cal -m 02'
alias mar='cal -m 03'
alias apr='cal -m 04'
alias may='cal -m 05'
alias jun='cal -m 06'
alias jul='cal -m 07'
alias aug='cal -m 08'
alias sep='cal -m 09'
alias oct='cal -m 10'
alias nov='cal -m 11'
alias dec='cal -m 12'
 
 
#-------------------------------------------------------------
# Disk
#-------------------------------------------------------------
 
#alias du='\du -ach | sort -h'                     # Human-readable format.
#alias du='du -kh'                                # Human-readable format.
alias du="\du -hc -d1 2> >(grep -v 'Permission denied') | sort -h"
 
alias dutotal='\du -ch 2> /dev/null |tail -1'     # Displays only the total.
alias du1='\du -h -d 1'                           # Shows only 1 level deep.
alias du10='\du -hsx * | sort -rh | head -10'     # What is using the most space.
 
alias df='\df -kTh;\df -Thl --total | grep total'  # Adds total to the df command.
#alias df="df -Tha --total"
 
# Shows the individual partition usages without the temporary memory values.
alias dfx='\df -kThl --exclude-type=tmpfs --exclude-type=devtmpfs'
 
alias mount='\mount | column -t'                  # Make mount command output pretty and human readable format.
 
# View only mounted drives.
#alias mnt="mount | awk -F ' ' '{print \$1, \$3}' | column -t | grep -E ^/dev/ | sort"  # The \ before the $ is only needed when used as an alias.
alias mnt='\mount | awk -F'\'' '\'' '\''{ printf "%s\t%s\n",$1,$3; }'\'' | column -t | grep -E ^/dev/ | sort'
#alias mnt="\mount | awk -F' ' '{ printf \"%s\t%s\n\",\$1,\$3; }' | column -t | grep -E ^/dev/ | sort"
#alias mnt="mount | awk '$1 ~ /\/dev/ { print $1,$3; }' | column -t | sort;"
 
alias mntnice='\mount | grep -E ^/dev | column -t     # Display mount nicely.'
 
 
#-------------------------------------------------------------
# Directories.
#-------------------------------------------------------------
 
alias mkdir='mkdir -p'                           # Make parent directories if needed.
alias back='cd $OLDPWD'                          # Return to the last directory you were in.  Same as 'cd -'.
 
 
#-------------------------------------------------------------
# Docker.
#-------------------------------------------------------------
 
alias dockershell="docker run --rm -i -t --entrypoint=/bin/bash"   # Specify an image and drop into an interactive bash shell.
alias dockershellsh="docker run --rm -i -t --entrypoint=/bin/sh"   # Specify an image and drop into an interactive sh shell.
 
#alias dockerphp='docker run --rm -it -v "$PWD":/opt -w /opt php php'
#alias dockerjava='docker run --rm -it -v "$PWD":/opt -w /opt java java'
#alias dockernode='docker run --rm -it -v "$PWD":/opt -w /opt node node'
#alias dockerruby='docker run --rm -it -v "$PWD":/opt -w /opt ruby ruby'
#alias dockerpython='docker run --rm -it -v "$PWD":/opt -w /opt python python'
#alias dockerhtop='docker run --rm -it --pid host tehbilly/htop'
#alias dockermysql='docker run --rm -it imega/mysql-client mysql'
 
 
#-------------------------------------------------------------
# Downloading.
#-------------------------------------------------------------
 
alias wget='wget -c'                             # -c flag to continue download in case of problems.
alias wgetpage='wget --html-extension --recursive --convert-links --page-requisites --no-parent $1'  # Save a local copy of a remote web resource.
 
 
#-------------------------------------------------------------
# Files.
#-------------------------------------------------------------
 
alias fcount='ls -l | wc -l'                     # File count.
alias fcounta='ls -la | wc -l'                   # File count (incl hidden files).
alias fcountr='find . -type f | wc -l'           # File count recursive.
alias lastmod='ls -t -1'                         # Last modified file.
alias lastmodified='find -type f -print0 | xargs -r0 stat -c %y\ %n | sort'  # Last modified file in all subdirectories as well.
 
alias blanks="grep '(^[[:space:]]*$'"            # Only blank lines.
alias noblanks="grep -Ev '(^[[:space:]]*#|^$|^[[:space:]]*//)'"   # Only print actual code/configuration.
alias comments="grep '^ *\#.*$'"                 # Show comments in a file.
alias nocomments='grep -Ev "^(#|$)"'             # Show text file without comment (#) lines; or empty lines.
alias decomment='grep -Ev "^[[:space:]]*((#|;|//).*)?$" '  # Removes full-line comments and blank lines.
 
alias unprintable='grep --color="auto" -P -n "[\x00-\x1E]"'  # Shows which lines (with line numbers) in a file contain control characters.
alias expletives='grep --color="auto" -P -n "[^\x00-\x7E]" '  # Shows which lines in a file contain anything "above" a RUBOUT, i.e. above ASCII 127.
 
 
alias bigfiles='find . -type f 2>/dev/null | xargs du -a 2>/dev/null | awk "{ if ( \$1 > 5000) print \$0 }" | sort -hr'
alias verybigfiles='find . -type f 2>/dev/null | xargs du -a 2>/dev/null | awk "{ if ( \$1 > 500000) print \$0 }" | sort -hr'
 
alias brokenlinks='\find . -xtype l -printf "%p -> %l\n"'  # Find broken symlinks.
 
# count files by type - http://www.shell-fu.org/lister.php?id=173
#alias ftype="\find ${*-.} -type f | xargs file | awk -F, '{print $1}' | awk '{$1=NULL;print $0}' | sort | uniq -c | sort -nr"
 
alias fdiff='grep -F -x -v -f $1 $2'             # Show diffs between files.
alias filedeletefirstline='cat tmp.txt | sed 1d | wc -l'  # Delete first line of file.
 
 
#-------------------------------------------------------------
# File Permissions.
#-------------------------------------------------------------
 
alias fperm="find . -type f -exec chmod 0644 '{}' \;"  # File permissions.
alias dperm="find . -type d -exec chmod 0755 '{}' \;"  # Directory permissions.
 
 
#-------------------------------------------------------------
# GPU.
#-------------------------------------------------------------
 
alias showgpu="watch -d -n 0.5 nvidia-smi"a      # Nvidia.
 
 
#-------------------------------------------------------------
# Greps.
#-------------------------------------------------------------
 
alias grep='grep --color=auto'                   # Color output.
alias egrep='egrep --color=auto'                 # Color output.
alias fgrep='fgrep --color=auto'                 # Color output.
alias grepall='find . -name "*" | xargs grep --color=auto '  # Greps everything, including subdirectories.
 
 
#-------------------------------------------------------------
# History.
#-------------------------------------------------------------
 
# Find a command in your grep history.
# Usage: 
#   histgrep bash
alias histgrep='history|grep'                    # Find a command in history.  Usage "histgrep something".
#alias histtop10="history | awk '{CMD[$2]++;count++;}END { for (a in CMD)print CMD[a] " " CMD[a]/count*100 "% " a;}' | grep -v "./" | column -c3 -s " " -t | sort -nr | nl |  head -n10"  # Returns most commonly used commands.
 
 
#-------------------------------------------------------------
# Images.
#-------------------------------------------------------------
 
# Resizes images.
# Use the ImageMagick package (sudo apt-get install imagemagick) which contains a command called mogrify that does just this.
# This will resize all of the PNG images in the current directory, only if they are wider than 690px.
#alias imgresizepng='mogrify -resize 690\> *.png'    # Resize all PNG images wider than 690px in the current directory.
 
 
#-------------------------------------------------------------
# Logs.
#-------------------------------------------------------------
 
# alias syslog='sudo tail -10f /var/log/syslog'  # Follow syslog.
# alias messages='sudo tail -10f /var/log/messages'  # Follow messages.
 
alias dmesg='dmesg -T'                           # Make log times human readable.
 
# Last 10 items within every log file.
alias logs='tail -f /var/log/{dmesg,messages,*{,/*}{log,err}}'
 
alias syslog="tail -F /var/log/syslog"
 
 
# Returns the frequency of each line; i.e. how many times the line is in the file.
# Useful when parsing logs.
# What is the most common line in this stream.
alias rank="sort| uniq -c|sort -n"
 
 
#-------------------------------------------------------------
# ls.  (Assumes you use a recent GNU ls).
#-------------------------------------------------------------
 
alias ls='\ls -h --color=auto'                    # Add colors and human-readable sizes by default on 'ls'.
alias lsn='\ls --color=never'                      # With no color.
alias lsa='ls -A'                                # Show hidden files.
alias lsd='ls -d */ >/dev/null 2>/dev/null; [ $? -eq 0 ] && ls -d */ || : ;'  # List only directories, if any exist.
alias lsdf='ls -v --group-directories-first'     # Directories first, with alphanumeric sorting.
#alias lsdt='ls -h --group-directories-first --time-style=+"%d.%m.%Y %H:%M" --color=auto -F'
#alias lsdt='ls -h --group-directories-first --time-style=+"%Y.%m.%d %H:%M" --color=auto -F'
alias lsdt='ls -h --group-directories-first --time-style="+%Y-%m-%d %H:%M:%S" --color=auto -F'
alias lse='ls -AF | grep -E "\.|/"'              # Show only file with an extension.
alias lsh='ls -Am'                               # List files horizontally, comma-separated.
alias lsm='ls -Al |more'                         # Pipe through 'more'.
alias lsne='ls -AF | grep -Ev "\.|/"'            # Show only file without an extension.
alias lsnx='ls -AF | grep -v \*'                 # Show non executables only.
alias lsr='ls -lR'                               # List files recursively.
alias lssd='ls -Atr'                             # Sort by date, most recent last
alias lssh='ls -Ax'                              # Sort by name horizontally.
#alias lsss='ls --human-readable --size -1 -S --classify'  # Sort by size, biggest first.
alias lsss='ls -Sr'                              # Sort by size, biggest last.
alias lsssh='ls -shAxSr'                         # Sort by size, biggest last, horizontally.
alias lssta='ls -Atur'                           # Sort by/show access time,most recent last.
alias lsstc='ls -Atcr'                           # Sort by/show change time,most recent last.
alias lssx='ls -AXB'                             # Sort by extension.
alias lsx='ls -AF | grep \*'                     # Show executables only.
 
alias ll='ls -lF'                                # Long listing, classify.
alias lla='ls -lAF'                              # All files, long listing.
alias lld='ls -lFA | grep :*/'                   # List only directories, if any exist.
alias lldf='ls -lv --group-directories-first'    # Directories first, with alphanumeric sorting.
#alias lldt='ls -lh --group-directories-first --time-style=+"%d.%m.%Y %H:%M" --color=auto -F'
#alias lldt='ls -lh --group-directories-first --time-style=+"%Y.%m.%d %H:%M" --color=auto -F'
alias lldt='ls -lh --group-directories-first --time-style="+%Y-%m-%d %H:%M:%S" --color=auto -F'
alias lle='ls -lFA | grep -E "\.|/"'             # Show only file with an extension.
alias llm='ll |more'                             # Pipe through 'more'
alias llne='ls -lFA | grep -Ev "\.|/"'           # Show only file without an extension.
alias llnx='ls -lFA | grep -v \*'                # Show non executables only.
alias llr='ll -lAR'                              # Recursive ls.
alias llsd='ls -lAtrh'                           # Sort by date, most recent last, and human readable
alias llss='ls -lSr'                             # Sort by size, biggest last.
alias llsta='ls -ltur'                           # Sort by/show access time,most recent last.
alias llstc='ls -ltcr'                           # Sort by/show change time,most recent last.
alias llsx='ls -lXB'                             # Sort by extension.
alias llx='ls -lFA | grep \*'                    # Show executables only.
 
alias tree='find . | sed "s/[^/]*\//|   /g;s/| *\([^| ]\)/+--- \1/"'  # Simple tree of current dir.
 
 
#-------------------------------------------------------------
# Memory.
#-------------------------------------------------------------
 
alias free="free -mt"                            # Shows nicer output.
alias gpumem='grep -i --color memory /var/log/Xorg.0.log'
alias mem='grep -E "Mem|Cache|Swap" /proc/meminfo'
#alias mem2='echo -e Memory usage: $(free -h | grep "+" | cut -c26-30)/ $(free -h | grep "Mem:" | cut -c15-18)'
 
 
#-------------------------------------------------------------
# Misc.
#-------------------------------------------------------------
 
# Set the ? (question mark) as an alias.
alias -- ?='echo Help'
#alias '?'='echo help'
 
 
# Makes all of the other aliases you define function correctly when used with sudo.
# The ALIASES section of the bash manual says:
#    If the last character of the alias value is a blank, then the next command word following the alias is also checked for alias expansion.
# So this ensures commands are evaluated for aliases before being passed over to sudo, which ends up being pretty useful.
alias sudo='sudo '                               # Makes all of the other aliases you define function correctly when used with sudo.
 
alias please='sudo $(fc -ln -1)'                 # Rerun the last typed command, but prepend it with 'sudo' this time.
 
alias machine='uname -a | cut -f2 -d" "'         # Machine name.
alias pause='read -n 1 -p "Press any key to continue…"'
alias restart='killall -SIGUSR1'
alias utf='iconv -f ISO-8859-1 -t UTF-8'
alias which='type -a'                            # Includes aliases.
 
alias userinfo='getent passwd|column  -t -s: -n'
alias groupinfo='getent group|column  -t -s: -n'
 
# Generate sha1 digest.
alias sha1='openssl sha1'
 
 
#-------------------------------------------------------------
# Networking.
#-------------------------------------------------------------
 
alias connections='sudo /usr/bin/lsof -i -P'
#alias openports='netstat -lntp 2>/dev/null | grep -v " - *$"'  # Shows open ports.
#alias openports='ss -lntp 2>/dev/null | grep -v " - *$"'  # Shows open ports.
alias openports='sudo lsof -i -P -n | grep LISTEN'  # Shows open ports.
#alias macs='ifconfig | grep HWaddr'             # Shows MAC addresses for all nics.
alias macs='ip a | grep link/ether'  # Shows MAC addresses for all nics.
#alias netstatus="netstat -ant | awk '{print $6}' | sort | uniq -c | sort -n"
alias netstatus="ss -ant | awk '{print $6}' | sort | uniq -c | sort -n"
#alias nics='ifconfig em1 | egrep "[0-9]{1,3}(\.[0-9]{1,3}){3}"'  # Shows all nics.
alias nics='ip a | grep -E "[0-9]{1,3}(\.[0-9]{1,3}){3}"'  # Shows all nics.
#alias nics='ip a | egrep "[0-9]{1,3}(\.[0-9]{1,3}){3}"'  # Shows all nics.
alias ping='ping -c 5'                           # Stop after sending 5 ECHO_REQUEST packets.
alias fastping='sudo ping -c 5 -s.2'             # Do not wait interval 1 second, go fast.
#alias pingrouter="ping `netstat -nr| grep -m 1 -iE 'default|0.0.0.0' | awk '{print $2}'`"   # Print the router.
#alias pingrouter="ping `ip a|sort -nr| grep -m 1 -iE 'default|0.0.0.0' | awk '{print $2}'`"   # Print the router.
#####alias pingrouter="ping `ss -nr| grep -m 1 -iE 'default|0.0.0.0' | awk '{print $2}'`"   # Print the router.
 
#alias subnet="netstat -nr| grep -m 1 -iE 'default|0.0.0.0' | awk '{print $2}' | sed 's/\.[0-9]*$//'"  # Returns 192.168.1.
#####alias subnet="ss -nr| grep -m 1 -iE 'default|0.0.0.0' | awk '{print $2}' | sed 's/\.[0-9]*$//'"  # Returns 192.168.1.
 
 
# Show a listing of IP addresses.
alias ips="ip a | sed -En 's/127.0.0.1//;s/.*inet (addr:)?(([0-9]*\.){3}[0-9]*).*/\2/p'"
 
 
# Network diagnostic.
# Usage: mtr google.com
alias trace='mtr --report-wide --curses $1'
 
 
#-------------------------------------------------------------
# Monitors.
#-------------------------------------------------------------
 
# Disconnect monitors or if back to officef
#alias monitormulti='xrandr --output HDMI-2 --primary --auto --right-of eDP-1'
#alias monitorsingle='xrandr --output HDMI-2 --off'
#alias monitormax='sudo ~/xbacklight -set 100'
 
 
#-------------------------------------------------------------
# Notifications.
#-------------------------------------------------------------
 
# Sends a note to all logins.
# Usage: growl this is my message.
# [TODO: Need to check this works - take care!]
#alias growl=`notify-send --urgency=low -i "$([ $? = 0 ] && echo terminal || echo error)" "$(history|tail -n1|sed -e `\s/^s*[0-9]\+\s*//;s/[;&|]\s*alert$//`\")"`
#alias alert=`notify-send --urgency=low -i "$([ $? = 0 ] && echo terminal || echo error)" "$(history|tail -n1|sed -e `\s/^s*[0-9]\+\s*//;s/[;&|]\s*alert$//`\")"`
 
#alias alert='notify-send --urgency=low -i "$([ $? = 0 ] && echo terminal || echo error)" "$(history|tail -n1|sed -e '\''s/^\s*[0-9]\+\s*//;s/[;&|]\s*alert$//'\'')"
#alias alert='notify-send --urgency=low -i "$([ $? = 0 ] && echo terminal || echo error)" "$(history|tail -n1|sed -e '\''s/^\s*[0-9]\+\s*//;s/[;&|]\s*alert$//'\'')"'
 
# Add an "alert" alias for long running commands.  Use like so:
#   sleep 10; alert
alias alert='notify-send --urgency=low -i "$([ $? = 0 ] && echo terminal || echo error)" "$(history|tail -n1|sed -e '\''s/^\s*[0-9]\+\s*//;s/[;&|]\s*alert$//'\'')"'
 
 
#-------------------------------------------------------------
# Passwords.
#-------------------------------------------------------------
 
 
#-------------------------------------------------------------
# Path.
#-------------------------------------------------------------
 
# Pretty-print of some PATH variables:
alias path='echo -e ${PATH//:/\\n}'
alias libpath='echo -e ${LD_LIBRARY_PATH//:/\\n}'
 
 
#-------------------------------------------------------------
# Processes.
#-------------------------------------------------------------
 
alias ps="\ps auxf"                               # Set default.
alias psc='\ps h -eo pcpu,pmem,pid,comm,user,cputime | sort -nr | head'
alias psc10="ps auxf | sort -nr -k 3 | head -10"
alias psm='\ps h -eo pmem,pcpu,pid,comm,user,cputime | sort -nr | head'
alias psm10="ps auxf | sort -nr -k 4 | head -10"
alias pstree='\ps -e -o pid,args --forest'
alias psfull='\ps -auxwww'                        # ps with wide output so you can see full commands.
 
# usage: psg peter
# usage: psg ssh
alias psg="\ps aux | grep -v grep | grep -i -e VSZ -e"  # ps grep.
#alias psg='ps -Helf | grep -v $$ | grep -i -e WCHAN -e '  # ps grep.
 
# Show only 1 line for ps grep.
alias psg1="\ps -el | column -t | head -1 && \ps -el | column -t | \grep $1"
 
# Show only my procs.
alias myps='\ps -fHu $USER'                       # if not $USER, try $LOGIN
 
 
#-------------------------------------------------------------
# Programming – C/C++/Java/PHP.
#-------------------------------------------------------------
 
# Count lines of php code under the current directory.
alias countphp='find . -name "*.php" -print0 | xargs -0 wc'
 
# Count lines of java code under the current directory.
alias countjava='find . -name "*.java" -print0 | xargs -0 wc'
 
# Count lines of C or C++ or Obj-C code under the current directory.
alias countc='find . \( -name "*.c" -or -name "*.cpp" -or -name "*.h" -or -name "*.m" \) -print0 | xargs -0 wc'
 
# Count lines of C or C++ or Obj-C or Java or PHP code under the current directory.
alias countcode='find . \( -name "*.c" -or -name "*.cpp" -or -name "*.h" -or -name "*.m" -or -name "*.java" -or -name "*.php" \) -print0 | xargs -0 wc'
 
 
alias gcc='gcc -std=c99' 
alias g++='g++ -std=c++2a'
 
 
#-------------------------------------------------------------
# Python.
#-------------------------------------------------------------
 
# Create a Python virtual environment.
#
# Running pyve creates a new directory, called venv, containing the usual virtual environment filesystem for Python3.
# The pyva alias activates the environment in your current shell:
#
#$ cd my-project
#$ ve
#$ va
#(venv) $
 
alias pyve='python3 -m venv ./venv'
alias pyva='source ./venv/bin/activate'
 
 
#-------------------------------------------------------------
# Screen.
#-------------------------------------------------------------
 
# Turn screen off.
alias screenoff="xset dpms force off"
 
alias screencast="ffmpeg -threads 0 -async 30 -f x11grab -s 1920x1080 -r 30 -i :0 -vcodec libx264 -preset superfast -crf 16 -f mp4 out.mp4"
alias screencastaudio="ffmpeg -threads 0 -async 30 -f alsa -i pulse -f x11grab -s 1920x1080 -r 30 -i :0 -vcodec libx264 -preset superfast -crf 16 -acodec libmp3lame -f mp4 out.mp4"
 
 
alias screentest='P=(" " █ ░ ▒ ▓); while :; do printf "\e[$[RANDOM%LINES+1];$[RANDOM%COLUMNS+1]f${P[$RANDOM%5]}"; done'
 
 
#-------------------------------------------------------------
# Sound.
#-------------------------------------------------------------
 
alias mic-on="pactl load-module module-loopback"
alias mic-off="pactl unload-module module-loopback"
 
 
#-------------------------------------------------------------
# Spelling typos.  Highly personal and keyboard-dependent.
#-------------------------------------------------------------
 
alias xs='cd'
alias vf='cd'
alias moer='more'
alias moew='more'
alias kk='ll'
 
 
#-------------------------------------------------------------
# Time.
#-------------------------------------------------------------
 
alias now='date +"%T"'
alias nowtime=now
alias nowdate='date +"%Y-%m-%d"'
 
 
#-------------------------------------------------------------
# TMUX.
#-------------------------------------------------------------
 
alias tmuxn='tmux new-session -s'                # tmux new session.
alias tmuxa='tmux attach -t'                     # tmux attach.
alias tmuxls='tmux ls'                           # tmux list.
alias tmuxkill='tmux kill-session -s'            # kill session name.
 
 
#-------------------------------------------------------------
# UUID.
#-------------------------------------------------------------
 
alias uuid="uuidgen | tr -d - | tr -d '\n' | tr '[:upper:]' '[:lower:]' && echo"
 
 
#-------------------------------------------------------------
# Web.
#-------------------------------------------------------------
 
# Pass it via sudo so whoever is admin can reload it without calling you.
alias nginxreload='sudo /usr/sbin/nginx -s reload'
alias nginxtest='sudo /usr/sbin/nginx -t'

chown root:root /etc/profile.d/bash_aliases.sh
chmod 644 /etc/profile.d/bash_aliases.sh