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

   1 #! bash
   2
   3 # 256 color terminal
   4 if [[ "$TERM" =~ ^xterm ]]; then
   5     export TERM=xterm-256color
   6 fi
   7 if [[ "$TERM" =~ ^screen ]]; then
   8     export TERM=screen-256color-bce
   9 fi
  10
  11 # Check for unsupported TERM variable
  12 if ! tput init &> /dev/null; then
  13     echo "Warning! TERM=$TERM unsupported, using TERM=xterm"
  14     export TERM=xterm
  15 fi
  16
  17 # Disable CTRL-s / CTRL-q
  18 stty -ixon
  19
  20
  21 # Fancy PS1 with revision control status for git, hg, svn
  22
  23 [ -r /usr/share/git/completion/git-prompt.sh ] && source /usr/share/git/completion/git-prompt.sh
  24 function my_git_ps1 {
  25     find_up_recurse .git || return
  26     GIT_PS1_SHOWDIRTYSTATE=1 \
  27     GIT_PS1_SHOWUNTRACKEDFILES=1 \
  28     __git_ps1 2> /dev/null
  29 }
  30
  31 function my_hg_ps1 {
  32     find_up_recurse .hg || return
  33     b="$(hg branch 2>/dev/null)" || return
  34     s="$(hg status | cut -c1 | sort -u | tr -d " \n")"
  35     echo -n " ($b"
  36     [ -n "$s" ] && echo -n " $s"
  37     echo -n ")"
  38 }
  39
  40 function my_svn_ps1 {
  41     find_up_recurse .svn || return
  42     s="$(svn status --ignore-externals 2>/dev/null | cut -c1 | sort -u | tr -d " \n")"
  43     [ -z "$s" ] && return
  44     echo -n " ($s)"
  45 }
  46
  47 if [ -z "$debian_chroot" -a -r /etc/debian_chroot ]; then
  48     debian_chroot=$(cat /etc/debian_chroot)
  49 fi
  50 PS1='${debian_chroot:+($debian_chroot)}'
  51 PS1="$PS1"'\[\033[00;31m\]\u@\h\[\033[00m\]:\[\033[00;34m\]\w\[\033[00m\]'
  52 PS1="$PS1"'\[\033[00;36m\]$(my_git_ps1 ; my_hg_ps1 ; my_svn_ps1)\[\033[00m\]'
  53 PS1="$PS1"'\n\$ '
  54
  55
  56
  57 # Display return codes on error
  58 function print_exit_code {
  59     _exit_msg="\033[01;33mexit code: $?\033[00m"
  60     if [ -z "${BASH_SOURCE[1]}" ]; then
  61         echo -e "$_exit_msg"
  62     fi
  63     unset _exit_msg
  64 }
  65 trap print_exit_code ERR
  66
  67
  68
  69 # ls colours
  70 eval $(TERM=xterm dircolors 2> /dev/null)
  71
  72 if [ "${DARKTERM:-1}" -eq 1 ]; then
  73
  74     # Sets colour scheme in apps like Vim
  75     export COLORFGBG="15;0"
  76
  77     # Bold ls colours
  78     LS_COLORS="$(echo "${LS_COLORS}" | sed 's/00;/01;/g')"
  79     LSCOLORS="ExFxCxDxBxEGEDABAGACAD" # BSD ls
  80     PS1="$(echo "${PS1}" | sed 's/00;/01;/g')"
  81
  82 else
  83
  84     # Sets colour scheme in apps like Vim
  85     export COLORFGBG="0;15"
  86
  87     # Unbold ls colours
  88     LS_COLORS="$(echo "${LS_COLORS}" | sed 's/01;/00;/g')"
  89     LSCOLORS="exfxcxdxbxegedabagacad" # BSD ls
  90 fi
  91
  92 # Display 'hostname:workingdir'
  93 DISPLAY_TITLE_COMMAND='echo -ne "\033]0;$(hostname| cut -d. -f1):${PWD/$HOME/~}\007"'
  94
  95 # xterm title
  96 if [[ "$TERM" =~ ^xterm ]]; then
  97     PROMPT_COMMAND="$DISPLAY_TITLE_COMMAND"
  98 fi
  99
 100 # screen window displays current command
 101 if [[ "$TERM" =~ ^screen ]]; then
 102     PROMPT_COMMAND="${DISPLAY_TITLE_COMMAND}; echo -ne '\033k\033\\'"
 103 fi
 104
 105 # Useful aliases
 106 alias ls='ls --color=auto -v'
 107 alias ll='ls -hlF'
 108 alias la='ls -ha'
 109 alias  l='ls -halF'
 110 alias f='find . -iname'
 111 alias webshare='python3 -mhttp.server'
 112 alias rm='rm -i'
 113 alias less='less -R'
 114 alias grep='grep --color=auto --exclude "*.svn-base"'
 115 alias scp='scp -o ControlPath=none'
 116 alias bc='bc -ql'
 117 alias watch='watch -n1'
 118 alias sudo='sudo ' # ability to use aliases with sudo
 119 alias sudosu='sudo su -l -s /bin/bash'
 120 alias _psresources='ps -weo pid,user:16,%cpu,%mem,stat,start_time,bsdtime,args'
 121 alias pscpu='_psresources --sort -%cpu|less -S'
 122 alias psmem='_psresources --sort -%mem|less -S'
 123 alias pstree='ps --forest -weo pid,user:16,args --sort start_time|less -S'
 124 alias pstime='ps -weo pid,user:16,lstart,args --sort start_time|less -S'
 125 alias pbcopy='xsel --clipboard --input'
 126 alias pbcopym='xsel --input'
 127 alias pbpaste='xsel --clipboard --output'
 128 alias pbpastem='xsel --output'
 129
 130
 131
 132 # Super man!
 133 #  Colourful headings
 134 #  Terminal title
 135 function man {
 136     echo -ne "\033]0;man $@\007"
 137
 138     env \
 139         LESS_TERMCAP_md=$'\E[01;38;5;74m' \
 140         LESS_TERMCAP_me=$'\E[0m' \
 141         LESS_TERMCAP_us=$'\E[04;38;5;146m' \
 142         LESS_TERMCAP_ue=$'\E[0m' \
 143     man "$@"
 144 }
 145
 146 # Usage: mcd somedir
 147 # Creates the directory if it doesn't exist, and changes into it
 148 function mcd {
 149     mkdir -p "${1}" &&
 150     cd "${1}"
 151 }
 152
 153 # Usage: editf somefile
 154 # Does a recursive search of the current directory for somefile, then edits it
 155 function editf {
 156     find . -iname "${1}" -exec $EDITORBG '{}' +
 157 }
 158
 159 # Usage: edit somefile [otherfiles ...]
 160 function edit {
 161     $EDITORBG "$@"
 162 }
 163
 164 # Sets the nice and ionice priorities for the current shell to the lowest values
 165 function slowshell {
 166     ionice -c 3 -p $$
 167     renice -n 19 -p $$
 168 }
 169
 170 # SSH to an unknown host and print the new known_hosts entry
 171 function ssh_new {
 172     local new_known_hosts_file="$(mktemp)"
 173     ssh -o UserKnownHostsFile="$new_known_hosts_file" "$@" echo Connection ok
 174     cat "$new_known_hosts_file"
 175     rm -f "$new_known_hosts_file"
 176 }
 177
 178 # SSH without verifying host key
 179 function ssh_unsafe {
 180     ssh -o StrictHostKeyChecking=no "$@"
 181 }
 182
 183
 184 # Bash should check the terminal size after every command terminates
 185 shopt -s checkwinsize
 186
 187 # Don't attempt to tab-complete an empty line
 188 shopt -s no_empty_cmd_completion
 189
 190 # Prevent overwriting existing files on stdout redirection
 191 set -o noclobber
 192
 193 # Better history
 194 shopt -s histappend
 195 shopt -s cmdhist
 196 export HISTCONTROL="erasedups:ignoredups"
 197 export HISTSIZE="100000"
 198 export HISTTIMEFORMAT="%F %T "
 199
 200 # Local customisations
 201 [ -r "${HOME}/.bash/interactive_local" ] && source "${HOME}/.bash/interactive_local"
 202
 203 # Load bash completion if available
 204 [ -r "/etc/bash_completion" ] && source "/etc/bash_completion"
 205