Bashrc enhancements

I mostly use the commandline, but try to avoid too much typing, so I created and collected lots of Bash enhancements to make my live somewhat easier.

To use it, add this to your bashrc ( ~/.bashrc ) file :

cdl() { cd "$1"; ls -l; } 

ff () { find . -exec grep -q "${1}" '{}' \; -print; }
# ff:  to find a file under the current directory
ff () { /usr/bin/find . -name "$@" ; }
# ffs: to find a file whose name starts with a given string
ffs () { /usr/bin/find . -name "$@"'*' ; }
# ffe: to find a file whose name ends with a given string
ffe () { /usr/bin/find . -name '*'"$@" ; }

# enquote: surround lines with quotes (useful in pipes) - from MervTormel
enquote () { /usr/bin/sed 's/^/"/;s/$/"/' ; }

# debug_http: download a web page and show info on what took time
debug_http () { /usr/bin/curl $@ -o /dev/null -w "dns:
   %{time_namelookup} connect: %{time_connect} pretransfer:
   %{time_pretransfer} starttransfer: %{time_starttransfer} total:
   %{time_total}\n" ; }

# http_headers: get just the HTTP headers from a web page (and its redirects)
http_headers () { /usr/bin/curl -m 1 -I -L $@ ; }

#show contents of tar file
tarview() {
    echo -n "Displaying contents of $1 "
    if [ ${1##*.} = tar ]
    then
        echo "(uncompressed tar)"
        tar tvf $1
    elif [ ${1##*.} = gz ]
    then
        echo "(gzip-compressed tar)"
        tar tzvf $1
    elif [ ${1##*.} = bz2 ]
    then
        echo "(bzip2-compressed tar)"
        cat $1 | bzip2 -d | tar tvf -
    fi
}

# print your local ip-address
iplocal(){
   ifconfig  | grep 'inet addr:'| grep -v '127.0.0.1' |
   cut -d: -f2 | awk '{ print $1}' ;
}

alias mysqlx="mysql -u yourname -p"
alias sdn='shutdown -h -P now'
alias upgrade='apt-get update && apt-get upgrade'
alias ll='ls -l'

 function ii()
{
    echo -e "\nYou are logged onto "; hostname
    echo -e "\nAdditionnal information:$NC " ; uname -a
    echo -e "\n${RED}Users logged on:$NC " ; w -h
    echo -e "\n${RED}Current date :$NC " ; date
    echo -e "\n${RED}Machine stats :$NC " ; uptime
    echo -e "\n${RED}Disk space :$NC " ; df
    echo -e "\n${RED}Memory stats :$NC " ; free
    echo -e "\n${RED}Local IP Address :"; iplocal
    echo
}
function repeat()
{
   if [ $# != 0 ]; then
    local i max
    max=$1; shift;
    for ((i=1; i < = max ; i++)); do
    eval "$@";
    done
   else
    echo "usage: repeat  "
   fi
}
function apts()  # debian specific.
{
   apt-cache search $1
}

function ds()
{
    echo 'size of directories in MB'
    if [ $# -lt 1 ] || [ $# -gt 2 ]; then
        echo 'you did not specify a directy, using pwd'
        DIR=$(pwd)
        find $DIR -maxdepth 1 -type d -exec du -sm \{\} \; | sort -nr
    else
        find $1 -maxdepth 1 -type d -exec du -sm \{\} \; | sort -nr
    fi
}
# Opens a filebrowser starting from
# the current working directory
function ww()
{
  #nautilus $(pwd)
    nautilus ./
}
# remove line-numbers from a text/script
function rln()
{
if [ $# != 0 ]; then
 sed -e 's/[0-9]*\ //' $1
else
 echo "rln - remove linenubers from a textfile / script."
 echo "usage:  rln  > "
fi
}