#! bash
-# Sets up the shell for interactive commands
-# Use the terminfo backspace character as the erase character. This is not
-# enabled by default because terminfo is often broken.
-#stty erase $(tput kbs)
-# The contents of /etc/debian_chroot will be printed in the prompt. You can
-# create this file in chroot environments to know where you are.
-if [ -z "$debian_chroot" -a -r /etc/debian_chroot ]; then
- debian_chroot=$(cat /etc/debian_chroot)
-fi
-
-# Prompt: user@host:directory$
-PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\n\$ '
+##################
+# Terminal setup #
+##################
# Check for unsupported TERM variable
if ! tput init &> /dev/null; then
- echo "Warning! TERM=$TERM unsupported, using TERM=xterm"
- export TERM=xterm
+ echo "Warning! TERM=$TERM unsupported, using TERM=xterm"
+ export TERM=xterm
fi
-# The all important colours!
-ssource "${HOME}/.bash/colors"
+# Disable CTRL-s / CTRL-q
+stty -ixon
+
+# Sets colour scheme in apps like Vim
+export COLORFGBG="15;0"
+
+
+
+#############
+# Fancy PS1 #
+#############
+
+# Revision control status for git, hg, svn
+
+[ -r /usr/share/git/completion/git-prompt.sh ] && source /usr/share/git/completion/git-prompt.sh
+function my_git_ps1 {
+ find_up_recurse .git || return
+ GIT_PS1_SHOWDIRTYSTATE=1 \
+ GIT_PS1_SHOWUNTRACKEDFILES=1 \
+ __git_ps1 2> /dev/null
+}
+
+function my_hg_ps1 {
+ find_up_recurse .hg || return
+ b="$(hg branch 2>/dev/null)" || return
+ s="$(hg status | cut -c1 | sort -u | tr -d " \n")"
+ echo -n " ($b"
+ [ -n "$s" ] && echo -n " $s"
+ echo -n ")"
+}
+
+function my_svn_ps1 {
+ find_up_recurse .svn || return
+ s="$(svn status --ignore-externals 2>/dev/null | cut -c1 | sort -u | tr -d " \n")"
+ [ -z "$s" ] && return
+ echo -n " ($s)"
+}
+
+# Two line prompt
+
+PS1=''
+PS1="$PS1"'\[\033[01;31m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]'
+PS1="$PS1"'\[\033[01;36m\]$(my_git_ps1 ; my_hg_ps1 ; my_svn_ps1)\[\033[00m\]'
+PS1="$PS1"'\n\$ '
+
+
+
+################
+# xterm titles #
+################
+
+# hostname:workingdir
+DISPLAY_TITLE_COMMAND='echo -ne "\033]0;$(hostname| cut -d. -f1):${PWD/$HOME/~}\007"'
-# xterm titlebar displays 'hostname:workingdir'
-if tput hs || tput tsl &> /dev/null; then
- PROMPT_COMMAND='tput tsl; echo -n "$(hostname| cut -d. -f1):${PWD/$HOME/~}"; tput fsl;'
+if [[ "$TERM" =~ ^xterm ]]; then
+ PROMPT_COMMAND="$DISPLAY_TITLE_COMMAND"
fi
-# screen window displays current command
-case "${TERM}" in
-screen*)
- PROMPT_COMMAND="$PROMPT_COMMAND echo -ne '\033k\033\\'"
- ;;
-esac
+if [[ "$TERM" =~ ^screen ]]; then
+ PROMPT_COMMAND="${DISPLAY_TITLE_COMMAND}; echo -ne '\033k\033\\'"
+fi
+
+
+
+#################################
+# Display return codes on error #
+#################################
+
+function print_exit_code {
+ _exit_msg="\033[01;33mexit code: $?\033[00m"
+ if [ -z "${BASH_SOURCE[1]}" ]; then
+ echo -e "$_exit_msg"
+ fi
+ unset _exit_msg
+}
+trap print_exit_code ERR
+
+
+
+################
+# bash options #
+################
+
+# Bash should check the terminal size after every command terminates
+shopt -s checkwinsize
+
+# Don't attempt to tab-complete an empty line
+shopt -s no_empty_cmd_completion
+
+# Prevent overwriting existing files on stdout redirection
+set -o noclobber
-# Useful aliases
-alias ls='ls --color=auto'
+# Better history
+shopt -s histappend
+shopt -s cmdhist
+export HISTCONTROL="erasedups:ignoredups"
+export HISTSIZE="100000"
+export HISTTIMEFORMAT="%F %T "
+
+
+
+##########################
+# ls aliases and colours #
+##########################
+
+# GNU ls colours
+eval $(TERM=xterm dircolors 2> /dev/null)
+
+# BSD ls colours
+export LSCOLORS="ExFxCxDxBxEGEDABAGACAD"
+
+# Lets find the ls
+if ls --color=auto -v &> /dev/null; then
+ alias ls='ls --color=auto -v'
+elif gls --color=auto -v &> /dev/null; then
+ alias ls='gls --color=auto -v'
+elif ls -G &> /dev/null; then
+ alias ls='ls -G'
+else
+ alias ls='ls -F'
+fi
alias ll='ls -hlF'
alias la='ls -ha'
alias l='ls -halF'
-alias ld='ls -ld'
+
+
+
+##############
+# ps aliases #
+##############
+
+alias _psresources='ps -wAo pid,user,%cpu,%mem,stat,start,time,args'
+if [ "$(uname)" = "Linux" ]; then
+ alias pscpu='_psresources --sort -%cpu|less -S'
+ alias psmem='_psresources --sort -%mem|less -S'
+ alias pstree='ps --forest -weo pid,user:16,args --sort start_time|less -S'
+ alias pstime='ps -wAo pid,user,lstart,args --sort start_time|less -S'
+else
+ alias pscpu='_psresources -r|less -S'
+ alias psmem='_psresources -m|less -S'
+ alias pstime='ps -wAo pid,user,lstart,args|less -S'
+fi
+
+
+##################
+# Useful aliases #
+##################
+
alias f='find . -iname'
-alias webshare='python -c "import SimpleHTTPServer; SimpleHTTPServer.test()"'
+alias webshare='python3 -mhttp.server'
alias rm='rm -i'
alias less='less -R'
-alias grep='grep --color=auto --exclude "*.svn-base"'
+if echo x | grep -q --color=auto x &> /dev/null; then
+ alias grep='grep --color=auto'
+fi
alias scp='scp -o ControlPath=none'
alias bc='bc -ql'
+alias watch='watch -n1'
+alias sudo='sudo ' # ability to use aliases with sudo
+alias sudosu='sudo su -l -s /bin/bash'
+alias pbcopy='xsel --clipboard --input'
+alias pbcopym='xsel --input'
+alias pbpaste='xsel --clipboard --output'
+alias pbpastem='xsel --output'
-# Bash should check the terminal size after every command terminates
-shopt -s checkwinsize
-# Don't attempt to tab-complete an empty line
-shopt -s no_empty_cmd_completion
+# Super man!
+# Colourful headings
+# Terminal title
+function man {
+ echo -ne "\033]0;man $@\007"
+
+ env \
+ LESS_TERMCAP_md=$'\E[01;38;5;74m' \
+ LESS_TERMCAP_me=$'\E[0m' \
+ LESS_TERMCAP_us=$'\E[04;38;5;146m' \
+ LESS_TERMCAP_ue=$'\E[0m' \
+ man "$@"
+}
+
+# Usage: mcd somedir
+# Creates the directory if it doesn't exist, and changes into it
+function mcd {
+ mkdir -p "${1}" &&
+ cd "${1}"
+}
+
+# Usage: editf somefile
+# Does a recursive search of the current directory for somefile, then edits it
+function editf {
+ find . -iname "${1}" -exec $EDITORBG '{}' +
+}
+
+# Usage: edit somefile [otherfiles ...]
+function edit {
+ $EDITORBG "$@"
+}
+
+# Sets the nice and ionice priorities for the current shell to the lowest values
+function slowshell {
+ ionice -c 3 -p $$
+ renice -n 19 -p $$
+}
+
+# SSH to an unknown host and print the new known_hosts entry
+function ssh_new {
+ local new_known_hosts_file="$(mktemp)"
+ ssh -o UserKnownHostsFile="$new_known_hosts_file" "$@" echo Connection ok
+ cat "$new_known_hosts_file"
+ rm -f "$new_known_hosts_file"
+}
+
+# SSH without verifying host key
+function ssh_unsafe {
+ ssh -o StrictHostKeyChecking=no "$@"
+}
+
+
+
+###########
+# The end #
+###########
# Local customisations
-ssource "${HOME}/.bash/interactive_local"
+[ -r "${HOME}/.bash/interactive_local" ] && source "${HOME}/.bash/interactive_local"
# Load bash completion if available
-[ -r "${1}" ] && "/etc/bash_completion"
+[ -r "/etc/bash_completion" ] && source "/etc/bash_completion"