PaulEmmanuelSotir/.bash_aliases.sh

## .bash_aliases.sh
#!/bin/bash

# Begining of custom MOTD
#echo -e "\e[32m\e[1m###################################> ☣❤ \e[33m\e[1mPES SHELL\e[39m\e[0m - INTRUDERS BE CAREFULL\e[32m\e[1m ❤☣ <###################################\e[39m\e[0m"

echo -e "\e[33m\e[1m################################><><><><><><><><><><><><><><><><><><><><><><><><################################\e[39m\e[0m"
echo -e "\e[32m                                       ___  ________  ______ ________   __ "
echo -e       "                                      / _ \/ __/ __/ / __/ // / __/ /  / / "
echo -e       "                                     / ___/ _/_\ \  _\ \/ _  / _// /__/ /__"
echo -e       "                                    /_/  /___/___/ /___/_//_/___/____/____/\e[39m\e[1m ☣❤(INTRUDERS BE CAREFULL)☣❤"
echo -e "\e[33m\e[1m################################><><><><><><><><><><><><><><><><><><><><><><><><################################\e[39m\e[0m"


IS_CUDA_SETUP=$SETUP_CUDA # Env. variable set by linux install script (whether if Nvidia driver / CUDA Toolkit have been installed)
GCC_8_PRIORITY=20
GCC_9_PRIORITY=10
export GIT_EDITOR=vim

######## Custom bash aliases ########

alias now='date +"%T"'
alias ports='netstat -tulanp'
alias h="history"
alias grep_hist="history | grep"
alias greph="grep_hist"
alias git_log="git log --graph --oneline --decorate --all"
alias status="echo -e '\e[32m\e[1m#### GIT ALIASES #####\e[39m\e[0m\n- \e[33mgit_log\e[39m: pretty print graph of git log\n- \e[33mstatus\e[39m: this command\n- \e[33mmerge_dev\e[39m: ckeckout to master branch, merges dev into master, pushes all branches to remote and checkout back to dev branch\n\n\e[1m\e[4m\e[32m#### GIT BRANCH ####\e[0m\e[39m';git branch; echo -e '\n\e[1m\e[4m\e[32m#### GIT STATUS ####\e[0m\e[39m'; git status; echo -e '\n\e[1m\e[4m\e[32m#### GIT LOG ####\e[0m\e[39m'; git_log -n 10"
alias commit_all="git add --all; git commit -m"
alias merge_dev="set -euo pipefail; git checkout master; git merge dev; git push --all; git checkout dev"
alias git_info="status; echo -e '\e[32m\e[1m#### GIT GC #####\e[39m\e[0m\n'; git gc; echo -e '\e[32m\e[1m#### GIT OBJECT COUNT (size-pack: Packfiles size in KB) #####\e[39m\e[0m\n'; git count-objects -v"
alias ca="conda activate"
alias chkconfig="ls -alh /etc/rc?.d/* | grep "
alias smi="watch -cbd -n 1 -x 'nvidia-smi'"
alias stop_gui='gnome-session-quit'
alias exit_gui='stop_gui'

# URL Percent encoding/decoding
alias urldecode='python -c "import sys, urllib as ul; print(ul.unquote_plus(sys.argv[1]))"'
alias urlencode='python -c "import sys, urllib as ul; print(ul.quote_plus(sys.argv[1]))"'

# Rsyncc: Progress with checksum, recursive, relative paths, preserve permission, exucatibility, ACLs, Xattr, groups, modification times, handle sparse files efficiently, compress transfered data, prefer IPv4 + file-transfert stats  + preallocate files, + store/recover privileged attrs using xattrs
RSYNC_BACKUP_DIR=\$HOME/.rsync_backups
RSYNC_TMP_DIR=\$HOME/.rsync_tmp
RSYNC_OPTS=" --progress -crRpEAXgtSzDo -4 --stats --preallocate --fake-super --temp-dir=\\\$RSYNC_TMP_DIR"
alias rsyncc="rsync \$RSYNC_OPTS -l" # Copy symlinks as is
alias rsync_backup="rsyncc --backup --backup-dir=\\\$RSYNC_BACKUP_DIR --sufix='.old'"
alias rsynccb="rsync_backup"
# Same as rsyncc but "unsafe" symlinks are transformed (J: symlinks modification time modified)
alias rsyncc_safelinks="rsyncc \$RSYNC_OPTS -J --copy-unsafe-links"
# TODO: replace sshconfig with an ssh alias?
# alias ssh='ssh -a4CX -o "TCPKeepAlive=" -o "ServerAliveInterval" -o "ServerAliveCountMax" -o "ForwardX11Timeout" -o "FingerprintHash" -o "ConnectTimeout" -o "ConnectionAttempts" -o "CheckHostIP" -o "BatchMode" -o "AddKeysToAgent"

# If color support then, add color support to some commands
if [ -x /usr/bin/dircolors ]; then
    test -r \$HOME/.dircolors && eval "\$(dircolors -b \$HOME/.dircolors)" || eval "\$(dircolors -b)"
    alias dir="dir --color=auto"
    alias grep="grep --color=auto"
    alias ls="ls --color=auto"
    alias diff="colordiff"
fi

# Custom sudo/root aliases
if [ \$UID -ne 0 ]; then
    alias allow_out="sudo ufw default allow outgoing"
    alias deny_out="sudo ufw default deny outgoing"
    alias shutoff="sudo shutdown -h now"
    alias update='sudo apt-get update && sudo apt-get upgrade -y'
    alias default_gui='sudo systemctl set-default graphical'
    alias default_cmd='sudo systemctl set-default multi-user'
    alias start_gui='sudo systemctl start gdm3'
else
    alias allow_out="ufw default allow outgoing"
    alias deny_out="ufw default deny outgoing"
    alias shutoff="shutdown -h now"
    alias update='apt-get update && apt-get upgrade -y'
    alias default_gui='systemctl set-default graphical'
    alias default_cmd='systemctl set-default multi-user'
    alias start_gui='systemctl start gdm3'
fi

######## Custom functions ########

echo -e "\n\e[32m-------------------------------------------> Custom helper functions <----------------------------------------\e[39m\e[0m"

# Simplified ssh-add commands (usage: 'ssha key_rsa' is equivalent to 'ssh-add \$HOME/.ssh/key_rsa')
agent() {
    if [ -z "\$(ssh-add -L | grep \$1)" ] ; then
        cd \$HOME/.ssh && ssh-add "\$1"
        cd - > /dev/null
    fi
}
export -f agent
echo -e "- \e[33magent <ssh_key>\e[39m : performs 'ssh-add' within '\$HOME/.ssh' directory"

sudo_if_not_root() {
    if [ \$UID -ne 0 ]; then
        eval sudo "\$@"
    else
        eval "\$@"
    fi
}
export -f sudo_if_not_root
echo -e "- \e[33msudo_if_not_root *<command>\e[39m : runs following command with sudo if current user isn't already root (runs without sudo otherwise)"

ask() {
    ANSWER=""
    while [[ "\$ANSWER" != "Y" && "\$ANSWER" != "N" ]]; do
        echo "\$1 (Y/N)"
        read ANSWER
    done
    if [[ "\$ANSWER" == "Y" ]]; then
        eval "\$2"
    elif [[ "\$#" -ge 3 ]]; then
        eval "\$3"
    fi

}
export -f ask
echo -e "- \e[33mask <prompt> <cmd_if_yes> <?cmd_if_no>\e[39m : prompts user for a Y/N question. Runs first command if user choose 'Y' and runs another command if user choose to anwser 'N' (optional)."

# SSH utility function: agent + open ssh connection
ssha() {
    agent "\$1"
    ssh \${@:2}
}
export -f ssha
echo -e "- \e[33mssha <ssh_key> *<ssh_args>\e[39m : Adds 'ssh_key' to ssh agent with 'agent' utility function and ssh to given remote server with following arguments."

cenv() {
    CMD="conda env \$1 --file \${@:2}"
    echo \$CMD
    eval \$CMD
}
export -f cenv
echo -e "- \e[33mcenv <action> <env_file> *<other_args>\e[39m : Shorthand for 'conda env <action> --file <env_file> *<other_args>'. E.g.: 'cenv update ./environment.yml'"

# Sends SMS to my phone (Free mobile SMS API)
freesms() {
    usage() { echo "Usage: freesms [-m <string>] [-e] [-np] [-ns]" 1>&2; exit 1; }

    NOSUFFIX=false
    NOPREFIX=false
    EVAL_MESS=false

    while getopts ":m:ns:np:e:" o; do
        case "\${o}" in
            ns)
                NOSUFFIX=true
                ;;
            np)
                NOPREFIX=true
                ;;
            m)
                MESSAGE="\${OPTARG}"
                #TODO: if validation on argument is needed: ((s == 45 || s == 90)) || usage
                ;;
            e)
                EVAL_MESS=true
                ;;
            *)
                usage
                ;;
        esac
    done
    shift \$((OPTIND-1))

    if [ -z "\$MESSAGE" ]; then
        echo -e "ERROR: Missing required argument '-m' with SMS content.\n"
        usage
    fi

    # TODO: encrypt credentials and ask for its password, or, if root, use root-protected password file
    USER="..." #TODO: put your Free Mobile ID here if you have one
    PASS="..." #TODO: put your Free Mobile API key here if you have one

    if [[ "\$EVAL_MESS" ]]; then
        MESSAGE=\$(echo -e \$MESSAGE)
    fi
    if [[ ! \${NOPREFFIX} ]]; then
        PREFIX="-%20USER=\$USER%0D%0A-%20TIMESTAMP=\$(now)%0D%0A"
        MESSAGE="\$PREFIX\$MESSAGE"
    fi
    if [[ ! \${NOSUFFIX} ]]; then
        SUFFIX="%0D%0A[Sent from bash throught Free SMS Web API]"
        MESSAGE="\$MESSAGE\$SUFFIX"
    fi

    # Perform Free SMS Web API call
    echo -e "Sending SMS throught Free SMS web API...\nSMS content: '\$MESSAGE'"
    wget -q --prefer-family=IPv4 --no-cache --no-cookies --https-only -O- "https://smsapi.free-mobile.fr/sendmsg?user=\$USER&pass=\$PASS&msg=\$MESSAGE"
}
export -f freesms
echo -e "- \e[33mfreesms [-m <string>] [-np] [-ns]\e[39m : Send an SMS throught Free SMS Web API with '-m' arg string as content. Prefix and suffix can be disabled using '-np' or '-ns'. '-e' may be used to evaluate message (eq. to 'echo -e')"

# SSL encoding/decoding helper functions
echo -e "- \e[33msslenc/ssldec\e[39m : SSL encoding/decoding helper functions. Examples: 'sslenc message.txt', 'ssldec message.txt.enc', 'ssldec message.txt.enc > message.txt'"
sslenc() {
    echo -e "Please type password for SSL encoding of '\$1' file..."
    openssl enc -in "\$1" -aes-256-cbc -pass stdin > "\$1".enc
}
export -f sslenc

ssldec() {
    echo -e "Please type password for SSL decoding of '\$1' file..."
    echo \$(openssl enc -in "\$1" -d -aes-256-cbc -pass stdin)
}
export -f ssldec

remove_alternatives() {
    if [[ -n "\$(update-alternatives --display \$1 | grep -io -E "error:\s+no\s+alternatives")" ]]; then
        sudo_if_not_root update-alternatives --remove-all "\$1"
    fi
}
export -f remove_alternatives
echo -e "- \e[33mremove_alternatives <group>\e[39m : Removes all alternatives of given group if it exists (deletes given alternative group). (uses 'sudo_if_not_root')"

# Additional aliases/scripting which are machine-specific (the current file is common to all my workstations, i.e. user-accross-machines-specific :-S )
ADDITIONAL_ALIASES="\$HOME/.bash_aliases_additional"
if [ -f \$ADDITIONAL_ALIASES ]; then
    . \$ADDITIONAL_ALIASES
    export ADDITIONAL_ALIASES=\$ADDITIONAL_ALIASES
fi

######## Scripting ########

# Clear systemd journals older than 10 days if user says so
#ask "> Clean systemd journals entries older than 10 days?" "sudo_if_not_root journalctl --vacuum-time=10d"

# Makes sure there is a backup and tmp directory for rsync (NOTE: -d condition and mkdir -p option are redundant)
[[ -d \$RSYNC_BACKUP_DIR ]] || mkdir -p \$RSYNC_BACKUP_DIR
[[ -d \$RSYNC_TMP_DIR ]] || mkdir -p \$RSYNC_TMP_DIR

# Setup GCC/G++ 8-9 versions alternatives (update-alternative)
update_gcc_versions() {
    _GCC_8_PRIORITY=\$1
    _GCC_9_PRIORITY=\$2
    echo -e "> Setup GCC/G++ versions alternatives using 'update-alternatives' (GCC_9_PRIORITY=\$_GCC_9_PRIORITY ; GCC_8_PRIORITY=\$_GCC_8_PRIORITY)"

    remove_alternatives gcc
    sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-8 \$_GCC_8_PRIORITY
    sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-9 \$_GCC_9_PRIORITY
    remove_alternatives gcc-nm
    sudo update-alternatives --install /usr/bin/gcc-nm gcc-nm /usr/bin/gcc-nm-8 \$_GCC_8_PRIORITY
    sudo update-alternatives --install /usr/bin/gcc-nm gcc-nm /usr/bin/gcc-nm-9 \$_GCC_9_PRIORITY
    remove_alternatives gcc-ar
    sudo update-alternatives --install /usr/bin/gcc-ar gcc-ar /usr/bin/gcc-ar-8 \$_GCC_8_PRIORITY
    sudo update-alternatives --install /usr/bin/gcc-ar gcc-ar /usr/bin/gcc-ar-9 \$_GCC_9_PRIORITY
    remove_alternatives gcc-ranlib
    sudo update-alternatives --install /usr/bin/gcc-ranlib gcc-ranlib /usr/bin/gcc-ranlib-8 \$_GCC_8_PRIORITY
    sudo update-alternatives --install /usr/bin/gcc-ranlib gcc-ranlib /usr/bin/gcc-ranlib-9 \$_GCC_9_PRIORITY
    remove_alternatives gcov-tool
    sudo update-alternatives --install /usr/bin/gcov-tool gcov-tool /usr/bin/gcov-tool-8 \$_GCC_8_PRIORITY
    sudo update-alternatives --install /usr/bin/gcov-tool gcov-tool /usr/bin/gcov-tool-9 \$_GCC_9_PRIORITY
    remove_alternatives gcov-dump
    sudo update-alternatives --install /usr/bin/gcov-dump gcov-dump /usr/bin/gcov-dump-8 \$_GCC_8_PRIORITY
    sudo update-alternatives --install /usr/bin/gcov-dump gcov-dump /usr/bin/gcov-dump-9 \$_GCC_9_PRIORITY
    remove_alternatives gcov
    sudo update-alternatives --install /usr/bin/gcov gcov /usr/bin/gcov-8 \$_GCC_8_PRIORITY
    sudo update-alternatives --install /usr/bin/gcov gcov /usr/bin/gcov-9 \$_GCC_9_PRIORITY
    remove_alternatives g++
    sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-8 \$_GCC_8_PRIORITY
    sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-9 \$_GCC_9_PRIORITY

    # Set update-alternative GCC 'aliases'
    sudo update-alternatives --install /usr/bin/cc cc /usr/bin/gcc 30
    sudo update-alternatives --set cc /usr/bin/gcc
    sudo update-alternatives --install /usr/bin/c++ c++ /usr/bin/g++ 30
    sudo update-alternatives --set c++ /usr/bin/g++
}
#ask "> Update GCC/G++ version alternatives?" "update_gcc_versions \$GCC_8_PRIORITY \$GCC_9_PRIORITY"
#if [[ \$IS_CUDA_SETUP ]]; then
#    echo -e "> In order to change your default gcc/g++ default version manually, see 'update_gcc_versions()' helper function defined in '~/.bash_aliases'"
#    echo -e "\t(Example usage: 'update_gcc_versions 20 10' to set gcc/g++ binaries ver. 8 and 9 priorities to 20 and 10 respectively, which makes gcc/g++ 8 the default compiler)"
#fi
export -f update_gcc_versions

# End of custom MOTD (List all available aliases)
echo -e "\n\e[32m-------------------------------------------> Custom bash aliases <--------------------------------------------\e[39m"
# Print Alias names
echo -e "COMMANDS: \e[33m\$(alias | sed -n "s/^alias\s\([^=]*\)=[^$]*$/\1/p" | awk 'BEGIN { ORS = " \033[39m-\033[33m " } {print \$1}')\e[39m"
echo -e "\e[32m\e[1m##############################################################################################################\e[39m\e[0m\a"
	#!/bin/bash

	# Begining of custom MOTD
	#echo -e "\e[32m\e[1m###################################> ☣❤ \e[33m\e[1mPES SHELL\e[39m\e[0m - INTRUDERS BE CAREFULL\e[32m\e[1m ❤☣ <###################################\e[39m\e[0m"

	echo -e "\e[33m\e[1m################################><><><><><><><><><><><><><><><><><><><><><><><><################################\e[39m\e[0m"
	echo -e "\e[32m ___ ________ ______ ________ __ "
	echo -e " / _ \/ __/ __/ / __/ // / __/ / / / "
	echo -e " / ___/ _/_\ \ _\ \/ _ / _// /__/ /__"
	echo -e " /_/ /___/___/ /___/_//_/___/____/____/\e[39m\e[1m ☣❤(INTRUDERS BE CAREFULL)☣❤"
	echo -e "\e[33m\e[1m################################><><><><><><><><><><><><><><><><><><><><><><><><################################\e[39m\e[0m"


	IS_CUDA_SETUP=$SETUP_CUDA # Env. variable set by linux install script (whether if Nvidia driver / CUDA Toolkit have been installed)
	GCC_8_PRIORITY=20
	GCC_9_PRIORITY=10
	export GIT_EDITOR=vim

	######## Custom bash aliases ########

	alias now='date +"%T"'
	alias ports='netstat -tulanp'
	alias h="history"
	alias grep_hist="history \| grep"
	alias greph="grep_hist"
	alias git_log="git log --graph --oneline --decorate --all"
	alias status="echo -e '\e[32m\e[1m#### GIT ALIASES #####\e[39m\e[0m\n- \e[33mgit_log\e[39m: pretty print graph of git log\n- \e[33mstatus\e[39m: this command\n- \e[33mmerge_dev\e[39m: ckeckout to master branch, merges dev into master, pushes all branches to remote and checkout back to dev branch\n\n\e[1m\e[4m\e[32m#### GIT BRANCH ####\e[0m\e[39m';git branch; echo -e '\n\e[1m\e[4m\e[32m#### GIT STATUS ####\e[0m\e[39m'; git status; echo -e '\n\e[1m\e[4m\e[32m#### GIT LOG ####\e[0m\e[39m'; git_log -n 10"
	alias commit_all="git add --all; git commit -m"
	alias merge_dev="set -euo pipefail; git checkout master; git merge dev; git push --all; git checkout dev"
	alias git_info="status; echo -e '\e[32m\e[1m#### GIT GC #####\e[39m\e[0m\n'; git gc; echo -e '\e[32m\e[1m#### GIT OBJECT COUNT (size-pack: Packfiles size in KB) #####\e[39m\e[0m\n'; git count-objects -v"
	alias ca="conda activate"
	alias chkconfig="ls -alh /etc/rc?.d/* \| grep "
	alias smi="watch -cbd -n 1 -x 'nvidia-smi'"
	alias stop_gui='gnome-session-quit'
	alias exit_gui='stop_gui'

	# URL Percent encoding/decoding
	alias urldecode='python -c "import sys, urllib as ul; print(ul.unquote_plus(sys.argv[1]))"'
	alias urlencode='python -c "import sys, urllib as ul; print(ul.quote_plus(sys.argv[1]))"'

	# Rsyncc: Progress with checksum, recursive, relative paths, preserve permission, exucatibility, ACLs, Xattr, groups, modification times, handle sparse files efficiently, compress transfered data, prefer IPv4 + file-transfert stats + preallocate files, + store/recover privileged attrs using xattrs
	RSYNC_BACKUP_DIR=\$HOME/.rsync_backups
	RSYNC_TMP_DIR=\$HOME/.rsync_tmp
	RSYNC_OPTS=" --progress -crRpEAXgtSzDo -4 --stats --preallocate --fake-super --temp-dir=\\\$RSYNC_TMP_DIR"
	alias rsyncc="rsync \$RSYNC_OPTS -l" # Copy symlinks as is
	alias rsync_backup="rsyncc --backup --backup-dir=\\\$RSYNC_BACKUP_DIR --sufix='.old'"
	alias rsynccb="rsync_backup"
	# Same as rsyncc but "unsafe" symlinks are transformed (J: symlinks modification time modified)
	alias rsyncc_safelinks="rsyncc \$RSYNC_OPTS -J --copy-unsafe-links"
	# TODO: replace sshconfig with an ssh alias?
	# alias ssh='ssh -a4CX -o "TCPKeepAlive=" -o "ServerAliveInterval" -o "ServerAliveCountMax" -o "ForwardX11Timeout" -o "FingerprintHash" -o "ConnectTimeout" -o "ConnectionAttempts" -o "CheckHostIP" -o "BatchMode" -o "AddKeysToAgent"

	# If color support then, add color support to some commands
	if [ -x /usr/bin/dircolors ]; then
	test -r \$HOME/.dircolors && eval "\$(dircolors -b \$HOME/.dircolors)" \|\| eval "\$(dircolors -b)"
	alias dir="dir --color=auto"
	alias grep="grep --color=auto"
	alias ls="ls --color=auto"
	alias diff="colordiff"
	fi

	# Custom sudo/root aliases
	if [ \$UID -ne 0 ]; then
	alias allow_out="sudo ufw default allow outgoing"
	alias deny_out="sudo ufw default deny outgoing"
	alias shutoff="sudo shutdown -h now"
	alias update='sudo apt-get update && sudo apt-get upgrade -y'
	alias default_gui='sudo systemctl set-default graphical'
	alias default_cmd='sudo systemctl set-default multi-user'
	alias start_gui='sudo systemctl start gdm3'
	else
	alias allow_out="ufw default allow outgoing"
	alias deny_out="ufw default deny outgoing"
	alias shutoff="shutdown -h now"
	alias update='apt-get update && apt-get upgrade -y'
	alias default_gui='systemctl set-default graphical'
	alias default_cmd='systemctl set-default multi-user'
	alias start_gui='systemctl start gdm3'
	fi

	######## Custom functions ########

	echo -e "\n\e[32m-------------------------------------------> Custom helper functions <----------------------------------------\e[39m\e[0m"

	# Simplified ssh-add commands (usage: 'ssha key_rsa' is equivalent to 'ssh-add \$HOME/.ssh/key_rsa')
	agent() {
	if [ -z "\$(ssh-add -L \| grep \$1)" ] ; then
	cd \$HOME/.ssh && ssh-add "\$1"
	cd - > /dev/null
	fi
	}
	export -f agent
	echo -e "- \e[33magent <ssh_key>\e[39m : performs 'ssh-add' within '\$HOME/.ssh' directory"

	sudo_if_not_root() {
	if [ \$UID -ne 0 ]; then
	eval sudo "\$@"
	else
	eval "\$@"
	fi
	}
	export -f sudo_if_not_root
	echo -e "- \e[33msudo_if_not_root *<command>\e[39m : runs following command with sudo if current user isn't already root (runs without sudo otherwise)"

	ask() {
	ANSWER=""
	while [[ "\$ANSWER" != "Y" && "\$ANSWER" != "N" ]]; do
	echo "\$1 (Y/N)"
	read ANSWER
	done
	if [[ "\$ANSWER" == "Y" ]]; then
	eval "\$2"
	elif [[ "\$#" -ge 3 ]]; then
	eval "\$3"
	fi

	}
	export -f ask
	echo -e "- \e[33mask <prompt> <cmd_if_yes> <?cmd_if_no>\e[39m : prompts user for a Y/N question. Runs first command if user choose 'Y' and runs another command if user choose to anwser 'N' (optional)."

	# SSH utility function: agent + open ssh connection
	ssha() {
	agent "\$1"
	ssh \${@:2}
	}
	export -f ssha
	echo -e "- \e[33mssha <ssh_key> *<ssh_args>\e[39m : Adds 'ssh_key' to ssh agent with 'agent' utility function and ssh to given remote server with following arguments."

	cenv() {
	CMD="conda env \$1 --file \${@:2}"
	echo \$CMD
	eval \$CMD
	}
	export -f cenv
	echo -e "- \e[33mcenv <action> <env_file> <other_args>\e[39m : Shorthand for 'conda env <action> --file <env_file> <other_args>'. E.g.: 'cenv update ./environment.yml'"

	# Sends SMS to my phone (Free mobile SMS API)
	freesms() {
	usage() { echo "Usage: freesms [-m <string>] [-e] [-np] [-ns]" 1>&2; exit 1; }

	NOSUFFIX=false
	NOPREFIX=false
	EVAL_MESS=false

	while getopts ":m:ns:np:e:" o; do
	case "\${o}" in
	ns)
	NOSUFFIX=true
	;;
	np)
	NOPREFIX=true
	;;
	m)
	MESSAGE="\${OPTARG}"
	#TODO: if validation on argument is needed: ((s == 45 \|\| s == 90)) \|\| usage
	;;
	e)
	EVAL_MESS=true
	;;
	*)
	usage
	;;
	esac
	done
	shift \$((OPTIND-1))

	if [ -z "\$MESSAGE" ]; then
	echo -e "ERROR: Missing required argument '-m' with SMS content.\n"
	usage
	fi

	# TODO: encrypt credentials and ask for its password, or, if root, use root-protected password file
	USER="..." #TODO: put your Free Mobile ID here if you have one
	PASS="..." #TODO: put your Free Mobile API key here if you have one

	if [[ "\$EVAL_MESS" ]]; then
	MESSAGE=\$(echo -e \$MESSAGE)
	fi
	if [[ ! \${NOPREFFIX} ]]; then
	PREFIX="-%20USER=\$USER%0D%0A-%20TIMESTAMP=\$(now)%0D%0A"
	MESSAGE="\$PREFIX\$MESSAGE"
	fi
	if [[ ! \${NOSUFFIX} ]]; then
	SUFFIX="%0D%0A[Sent from bash throught Free SMS Web API]"
	MESSAGE="\$MESSAGE\$SUFFIX"
	fi

	# Perform Free SMS Web API call
	echo -e "Sending SMS throught Free SMS web API...\nSMS content: '\$MESSAGE'"
	wget -q --prefer-family=IPv4 --no-cache --no-cookies --https-only -O- "https://smsapi.free-mobile.fr/sendmsg?user=\$USER&pass=\$PASS&msg=\$MESSAGE"
	}
	export -f freesms
	echo -e "- \e[33mfreesms [-m <string>] [-np] [-ns]\e[39m : Send an SMS throught Free SMS Web API with '-m' arg string as content. Prefix and suffix can be disabled using '-np' or '-ns'. '-e' may be used to evaluate message (eq. to 'echo -e')"

	# SSL encoding/decoding helper functions
	echo -e "- \e[33msslenc/ssldec\e[39m : SSL encoding/decoding helper functions. Examples: 'sslenc message.txt', 'ssldec message.txt.enc', 'ssldec message.txt.enc > message.txt'"
	sslenc() {
	echo -e "Please type password for SSL encoding of '\$1' file..."
	openssl enc -in "\$1" -aes-256-cbc -pass stdin > "\$1".enc
	}
	export -f sslenc

	ssldec() {
	echo -e "Please type password for SSL decoding of '\$1' file..."
	echo \$(openssl enc -in "\$1" -d -aes-256-cbc -pass stdin)
	}
	export -f ssldec

	remove_alternatives() {
	if [[ -n "\$(update-alternatives --display \$1 \| grep -io -E "error:\s+no\s+alternatives")" ]]; then
	sudo_if_not_root update-alternatives --remove-all "\$1"
	fi
	}
	export -f remove_alternatives
	echo -e "- \e[33mremove_alternatives <group>\e[39m : Removes all alternatives of given group if it exists (deletes given alternative group). (uses 'sudo_if_not_root')"

	# Additional aliases/scripting which are machine-specific (the current file is common to all my workstations, i.e. user-accross-machines-specific :-S )
	ADDITIONAL_ALIASES="\$HOME/.bash_aliases_additional"
	if [ -f \$ADDITIONAL_ALIASES ]; then
	. \$ADDITIONAL_ALIASES
	export ADDITIONAL_ALIASES=\$ADDITIONAL_ALIASES
	fi

	######## Scripting ########

	# Clear systemd journals older than 10 days if user says so
	#ask "> Clean systemd journals entries older than 10 days?" "sudo_if_not_root journalctl --vacuum-time=10d"

	# Makes sure there is a backup and tmp directory for rsync (NOTE: -d condition and mkdir -p option are redundant)
	[[ -d \$RSYNC_BACKUP_DIR ]] \|\| mkdir -p \$RSYNC_BACKUP_DIR
	[[ -d \$RSYNC_TMP_DIR ]] \|\| mkdir -p \$RSYNC_TMP_DIR

	# Setup GCC/G++ 8-9 versions alternatives (update-alternative)
	update_gcc_versions() {
	_GCC_8_PRIORITY=\$1
	_GCC_9_PRIORITY=\$2
	echo -e "> Setup GCC/G++ versions alternatives using 'update-alternatives' (GCC_9_PRIORITY=\$_GCC_9_PRIORITY ; GCC_8_PRIORITY=\$_GCC_8_PRIORITY)"

	remove_alternatives gcc
	sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-8 \$_GCC_8_PRIORITY
	sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-9 \$_GCC_9_PRIORITY
	remove_alternatives gcc-nm
	sudo update-alternatives --install /usr/bin/gcc-nm gcc-nm /usr/bin/gcc-nm-8 \$_GCC_8_PRIORITY
	sudo update-alternatives --install /usr/bin/gcc-nm gcc-nm /usr/bin/gcc-nm-9 \$_GCC_9_PRIORITY
	remove_alternatives gcc-ar
	sudo update-alternatives --install /usr/bin/gcc-ar gcc-ar /usr/bin/gcc-ar-8 \$_GCC_8_PRIORITY
	sudo update-alternatives --install /usr/bin/gcc-ar gcc-ar /usr/bin/gcc-ar-9 \$_GCC_9_PRIORITY
	remove_alternatives gcc-ranlib
	sudo update-alternatives --install /usr/bin/gcc-ranlib gcc-ranlib /usr/bin/gcc-ranlib-8 \$_GCC_8_PRIORITY
	sudo update-alternatives --install /usr/bin/gcc-ranlib gcc-ranlib /usr/bin/gcc-ranlib-9 \$_GCC_9_PRIORITY
	remove_alternatives gcov-tool
	sudo update-alternatives --install /usr/bin/gcov-tool gcov-tool /usr/bin/gcov-tool-8 \$_GCC_8_PRIORITY
	sudo update-alternatives --install /usr/bin/gcov-tool gcov-tool /usr/bin/gcov-tool-9 \$_GCC_9_PRIORITY
	remove_alternatives gcov-dump
	sudo update-alternatives --install /usr/bin/gcov-dump gcov-dump /usr/bin/gcov-dump-8 \$_GCC_8_PRIORITY
	sudo update-alternatives --install /usr/bin/gcov-dump gcov-dump /usr/bin/gcov-dump-9 \$_GCC_9_PRIORITY
	remove_alternatives gcov
	sudo update-alternatives --install /usr/bin/gcov gcov /usr/bin/gcov-8 \$_GCC_8_PRIORITY
	sudo update-alternatives --install /usr/bin/gcov gcov /usr/bin/gcov-9 \$_GCC_9_PRIORITY
	remove_alternatives g++
	sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-8 \$_GCC_8_PRIORITY
	sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-9 \$_GCC_9_PRIORITY

	# Set update-alternative GCC 'aliases'
	sudo update-alternatives --install /usr/bin/cc cc /usr/bin/gcc 30
	sudo update-alternatives --set cc /usr/bin/gcc
	sudo update-alternatives --install /usr/bin/c++ c++ /usr/bin/g++ 30
	sudo update-alternatives --set c++ /usr/bin/g++
	}
	#ask "> Update GCC/G++ version alternatives?" "update_gcc_versions \$GCC_8_PRIORITY \$GCC_9_PRIORITY"
	#if [[ \$IS_CUDA_SETUP ]]; then
	# echo -e "> In order to change your default gcc/g++ default version manually, see 'update_gcc_versions()' helper function defined in '~/.bash_aliases'"
	# echo -e "\t(Example usage: 'update_gcc_versions 20 10' to set gcc/g++ binaries ver. 8 and 9 priorities to 20 and 10 respectively, which makes gcc/g++ 8 the default compiler)"
	#fi
	export -f update_gcc_versions

	# End of custom MOTD (List all available aliases)
	echo -e "\n\e[32m-------------------------------------------> Custom bash aliases <--------------------------------------------\e[39m"
	# Print Alias names
	echo -e "COMMANDS: \e[33m\$(alias \| sed -n "s/^alias\s\([^=]\)=[^$]$/\1/p" \| awk 'BEGIN { ORS = " \033[39m-\033[33m " } {print \$1}')\e[39m"
	echo -e "\e[32m\e[1m##############################################################################################################\e[39m\e[0m\a"