code.delx.au - dotfiles/blob - .bash/interactive

   1 #! bash
   2
   3 # Check for unsupported TERM variable
   4 if ! tput init &> /dev/null; then
   5     echo "Warning! TERM=$TERM unsupported, using TERM=xterm"
   6     export TERM=xterm
   7 fi
   8
   9 # Disable CTRL-s / CTRL-q
  10 stty -ixon
  11
  12
  13 # Fancy PS1 with revision control status for git, hg, svn
  14
  15 [ -r /usr/share/git/completion/git-prompt.sh ] && source /usr/share/git/completion/git-prompt.sh
  16 function my_git_ps1 {
  17     find_up_recurse .git || return
  18     GIT_PS1_SHOWDIRTYSTATE=1 \
  19     GIT_PS1_SHOWUNTRACKEDFILES=1 \
  20     __git_ps1 2> /dev/null
  21 }
  22
  23 function my_hg_ps1 {
  24     find_up_recurse .hg || return
  25     b="$(hg branch 2>/dev/null)" || return
  26     s="$(hg status | cut -c1 | sort -u | tr -d " \n")"
  27     echo -n " ($b"
  28     [ -n "$s" ] && echo -n " $s"
  29     echo -n ")"
  30 }
  31
  32 function my_svn_ps1 {
  33     find_up_recurse .svn || return
  34     s="$(svn status --ignore-externals 2>/dev/null | cut -c1 | sort -u | tr -d " \n")"
  35     [ -z "$s" ] && return
  36     echo -n " ($s)"
  37 }
  38
  39 if [ -z "$debian_chroot" -a -r /etc/debian_chroot ]; then
  40     debian_chroot=$(cat /etc/debian_chroot)
  41 fi
  42 PS1='${debian_chroot:+($debian_chroot)}'
  43 PS1="$PS1"'\[\033[00;31m\]\u@\h\[\033[00m\]:\[\033[00;34m\]\w\[\033[00m\]'
  44 PS1="$PS1"'\[\033[00;36m\]$(my_git_ps1 ; my_hg_ps1 ; my_svn_ps1)\[\033[00m\]'
  45 PS1="$PS1"'\n\$ '
  46
  47
  48
  49 # Display return codes on error
  50 function print_exit_code {
  51     _exit_msg="\033[01;33mexit code: $?\033[00m"
  52     if [ -z "${BASH_SOURCE[1]}" ]; then
  53         echo -e "$_exit_msg"
  54     fi
  55     unset _exit_msg
  56 }
  57 trap print_exit_code ERR
  58
  59
  60
  61 # ls colours
  62 eval $(TERM=xterm dircolors 2> /dev/null)
  63
  64 if [ "${DARKTERM:-1}" -eq 1 ]; then
  65
  66     # Sets colour scheme in apps like Vim
  67     export COLORFGBG="15;0"
  68
  69     # Bold ls colours
  70     LS_COLORS="$(echo "${LS_COLORS}" | sed 's/00;/01;/g')"
  71     LSCOLORS="ExFxCxDxBxEGEDABAGACAD" # BSD ls
  72     PS1="$(echo "${PS1}" | sed 's/00;/01;/g')"
  73
  74 else
  75
  76     # Sets colour scheme in apps like Vim
  77     export COLORFGBG="0;15"
  78
  79     # Unbold ls colours
  80     LS_COLORS="$(echo "${LS_COLORS}" | sed 's/01;/00;/g')"
  81     LSCOLORS="exfxcxdxbxegedabagacad" # BSD ls
  82 fi
  83
  84 # Display 'hostname:workingdir'
  85 DISPLAY_TITLE_COMMAND='echo -ne "\033]0;$(hostname| cut -d. -f1):${PWD/$HOME/~}\007"'
  86
  87 # xterm title
  88 if [[ "$TERM" =~ ^xterm ]]; then
  89     PROMPT_COMMAND="$DISPLAY_TITLE_COMMAND"
  90 fi
  91
  92 # screen window displays current command
  93 if [[ "$TERM" =~ ^screen ]]; then
  94     PROMPT_COMMAND="${DISPLAY_TITLE_COMMAND}; echo -ne '\033k\033\\'"
  95 fi
  96
  97 # Useful aliases
  98 alias ls='ls --color=auto -v'
  99 alias ll='ls -hlF'
 100 alias la='ls -ha'
 101 alias  l='ls -halF'
 102 alias f='find . -iname'
 103 alias webshare='python3 -mhttp.server'
 104 alias rm='rm -i'
 105 alias less='less -R'
 106 alias grep='grep --color=auto --exclude "*.svn-base"'
 107 alias scp='scp -o ControlPath=none'
 108 alias bc='bc -ql'
 109 alias watch='watch -n1'
 110 alias sudo='sudo ' # ability to use aliases with sudo
 111 alias sudosu='sudo su -l -s /bin/bash'
 112 alias _psresources='ps -weo pid,user:16,%cpu,%mem,stat,start_time,bsdtime,args'
 113 alias pscpu='_psresources --sort -%cpu|less -S'
 114 alias psmem='_psresources --sort -%mem|less -S'
 115 alias pstree='ps --forest -weo pid,user:16,args --sort start_time|less -S'
 116 alias pstime='ps -weo pid,user:16,lstart,args --sort start_time|less -S'
 117 alias pbcopy='xsel --clipboard --input'
 118 alias pbcopym='xsel --input'
 119 alias pbpaste='xsel --clipboard --output'
 120 alias pbpastem='xsel --output'
 121
 122
 123
 124 # Super man!
 125 #  Colourful headings
 126 #  Terminal title
 127 function man {
 128     echo -ne "\033]0;man $@\007"
 129
 130     env \
 131         LESS_TERMCAP_md=$'\E[01;38;5;74m' \
 132         LESS_TERMCAP_me=$'\E[0m' \
 133         LESS_TERMCAP_us=$'\E[04;38;5;146m' \
 134         LESS_TERMCAP_ue=$'\E[0m' \
 135     man "$@"
 136 }
 137
 138 # Usage: mcd somedir
 139 # Creates the directory if it doesn't exist, and changes into it
 140 function mcd {
 141     mkdir -p "${1}" &&
 142     cd "${1}"
 143 }
 144
 145 # Usage: editf somefile
 146 # Does a recursive search of the current directory for somefile, then edits it
 147 function editf {
 148     find . -iname "${1}" -exec $EDITORBG '{}' +
 149 }
 150
 151 # Usage: edit somefile [otherfiles ...]
 152 function edit {
 153     $EDITORBG "$@"
 154 }
 155
 156 # Sets the nice and ionice priorities for the current shell to the lowest values
 157 function slowshell {
 158     ionice -c 3 -p $$
 159     renice -n 19 -p $$
 160 }
 161
 162 # SSH to an unknown host and print the new known_hosts entry
 163 function ssh_new {
 164     local new_known_hosts_file="$(mktemp)"
 165     ssh -o UserKnownHostsFile="$new_known_hosts_file" "$@" echo Connection ok
 166     cat "$new_known_hosts_file"
 167     rm -f "$new_known_hosts_file"
 168 }
 169
 170 # SSH without verifying host key
 171 function ssh_unsafe {
 172     ssh -o StrictHostKeyChecking=no "$@"
 173 }
 174
 175
 176 # Bash should check the terminal size after every command terminates
 177 shopt -s checkwinsize
 178
 179 # Don't attempt to tab-complete an empty line
 180 shopt -s no_empty_cmd_completion
 181
 182 # Prevent overwriting existing files on stdout redirection
 183 set -o noclobber
 184
 185 # Better history
 186 shopt -s histappend
 187 shopt -s cmdhist
 188 export HISTCONTROL="erasedups:ignoredups"
 189 export HISTSIZE="100000"
 190 export HISTTIMEFORMAT="%F %T "
 191
 192 # Local customisations
 193 [ -r "${HOME}/.bash/interactive_local" ] && source "${HOME}/.bash/interactive_local"
 194
 195 # Load bash completion if available
 196 [ -r "/etc/bash_completion" ] && source "/etc/bash_completion"
 197