Use a ~/.bash_completion file. From the Bash Completion FAQ: Q. How can I insert my own local completions without having to reinsert them every time you issue a new release? A. Put them in ~/.bash_completion, which is parsed at the end of the main completion script. See also the next question. Q. I author/maintain package … Read more
I think your only options are: ssh in as another user and su to your account; use something like ftp or smbclient, if the relevant services are enabled on the host; find an open vulnerability in an open network service and exploit it :). get an admin to fix the problem.
I have a little script that extracts archives, I found it somewhere on the net: extract () { if [ -f $1 ] ; then case $1 in *.tar.bz2) tar xvjf $1 ;; *.tar.gz) tar xvzf $1 ;; *.bz2) bunzip2 $1 ;; *.rar) unrar x $1 ;; *.gz) gunzip $1 ;; *.tar) tar xvf $1 … Read more