dotfiles/shell/functions

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2016-06-14 19:13:17 +00:00
# Functions gathered from around the internet
extract () { # Extracts most common compressed files
if [ -f $1 ] ; then
case $1 in
*.tar.bz2) tar xjf $1 ;;
*.tar.gz) tar xzf $1 ;;
*.bz2) bunzip2 $1 ;;
*.rar) rar x $1 ;;
*.gz) gunzip $1 ;;
*.tar) tar xf $1 ;;
*.tbz2) tar xjf $1 ;;
*.tgz) tar xzf $1 ;;
*.zip) unzip $1 ;;
*.Z) uncompress $1 ;;
*) echo "'$1' cannot be extracted via extract()" ;;
esac
else
echo "'$1' is not a valid file"
fi
}
maketar() { tar cvzf "${1%%/}.tar.gz" "${1%%/}/"; }
makezip() { zip -r "${1%%/}.zip" "$1" ; }
psgrep() {
if [ ! -z $1 ] ; then
echo "Grepping for processes matching $1..."
ps aux | grep $1 | grep -v grep
else
echo "!! Need name to grep for"
fi
}
gpass() { # Generates passwords
local l=$1
[ "$l" == "" ] && l=20
tr -dc A-Za-z0-9-!@%^*_ < /dev/urandom | head -c ${l} | xargs
}
#up() { # Usage: up <Number of directories>. Blank for up one dir.
# local d=""
# limit=$1
# for((i=1 ; i <= limit ; i++)); do
# d=$d/..
# done
# d=$(echo $d | sed 's/^\///')
# if [ -z "$d" ]; then
# d=..
# fi
# cd $d
#}
#dirsize - finds directory sizes and lists them for the current directory
dirsize (){
du -shx * .[a-zA-Z0-9_]* 2> /dev/null | \
egrep '^ *[0-9.]*[MG]' | sort -n > /tmp/list
egrep '^ *[0-9.]*M' /tmp/list
egrep '^ *[0-9.]*G' /tmp/list
rm -rf /tmp/list
}
myps() { ps $@ -u $USER -o pid,%cpu,%mem,bsdtime,command ; }
ii() { # Get current host related info.
echo -e "\nYou are logged on ${BRed}$HOST"
echo -e "\n${BRed}Additionnal information:$NC " ; uname -a
echo -e "\n${BRed}Users logged on:$NC " ; w -hs | cut -d " " -f1 | sort | uniq
echo -e "\n${BRed}Current date :$NC " ; date
echo -e "\n${BRed}Machine stats :$NC " ; uptime
echo -e "\n${BRed}Memory stats :$NC " ; free
echo -e "\n${BRed}Diskspace :$NC " ; mydf / $HOME
echo -e "\n${BRed}Local IP Address :$NC" ; my_ip
echo -e "\n${BRed}Open connections :$NC "; netstat -pan --inet;
echo
}