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

   1 #! bash
   2
   3
   4
   5 ##################
   6 # Terminal setup #
   7 ##################
   8
   9 # Check for unsupported TERM variable
  10 if ! tput init &> /dev/null; then
  11     echo "Warning! TERM=$TERM unsupported, using TERM=xterm"
  12     export TERM=xterm
  13 fi
  14
  15 # Disable CTRL-s / CTRL-q
  16 stty -ixon
  17
  18 # Sets colour scheme in apps like Vim
  19 export COLORFGBG="15;0"
  20
  21
  22
  23 #############
  24 # Fancy PS1 #
  25 #############
  26
  27 # Revision control status for git, hg, svn
  28
  29 [ -r /usr/share/git/completion/git-prompt.sh ] && source /usr/share/git/completion/git-prompt.sh
  30 function my_git_ps1 {
  31     find_up_recurse .git || return
  32     GIT_PS1_SHOWDIRTYSTATE=1 \
  33     GIT_PS1_SHOWUNTRACKEDFILES=1 \
  34     __git_ps1 2> /dev/null
  35 }
  36
  37 function my_hg_ps1 {
  38     find_up_recurse .hg || return
  39     b="$(hg branch 2>/dev/null)" || return
  40     s="$(hg status | cut -c1 | sort -u | tr -d " \n")"
  41     echo -n " ($b"
  42     [ -n "$s" ] && echo -n " $s"
  43     echo -n ")"
  44 }
  45
  46 function my_svn_ps1 {
  47     find_up_recurse .svn || return
  48     s="$(svn status --ignore-externals 2>/dev/null | cut -c1 | sort -u | tr -d " \n")"
  49     [ -z "$s" ] && return
  50     echo -n " ($s)"
  51 }
  52
  53 # Two line prompt
  54
  55 PS1=''
  56 PS1="$PS1"'\[\033[01;31m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]'
  57 PS1="$PS1"'\[\033[01;36m\]$(my_git_ps1 ; my_hg_ps1 ; my_svn_ps1)\[\033[00m\]'
  58
  59 if ! [[ "$TERM" =~ ^screen ]]; then
  60     PS1="$PS1"'\n\$ '
  61 else
  62     PS1="$PS1"'\n\[\033k\033\\\]\$> '
  63 fi
  64
  65
  66 ###############
  67 # xterm title #
  68 ###############
  69
  70 # hostname:workingdir
  71 PROMPT_COMMAND='echo -ne "\033]0;$(hostname| cut -d. -f1):${PWD/$HOME/~}\007"'
  72
  73
  74
  75 #################################
  76 # Display return codes on error #
  77 #################################
  78
  79 function print_exit_code {
  80     _exit_msg="\033[01;33mexit code: $?\033[00m"
  81     if [ -z "${BASH_SOURCE[1]}" ]; then
  82         echo -e "$_exit_msg"
  83     fi
  84     unset _exit_msg
  85 }
  86 trap print_exit_code ERR
  87
  88
  89
  90 ################
  91 # bash options #
  92 ################
  93
  94 # Bash should check the terminal size after every command terminates
  95 shopt -s checkwinsize
  96
  97 # Don't attempt to tab-complete an empty line
  98 shopt -s no_empty_cmd_completion
  99
 100 # Prevent overwriting existing files on stdout redirection
 101 set -o noclobber
 102
 103 # Better history
 104 shopt -s histappend
 105 shopt -s cmdhist
 106 export HISTCONTROL="erasedups:ignoredups:ignorespace"
 107 export HISTSIZE="100000"
 108 export HISTTIMEFORMAT="%F %T "
 109
 110
 111
 112 ##########################
 113 # ls aliases and colours #
 114 ##########################
 115
 116 # GNU ls colours
 117 eval $(TERM=xterm dircolors 2> /dev/null)
 118
 119 # BSD ls colours
 120 export LSCOLORS="ExFxCxDxBxEGEDABAGACAD"
 121
 122 # Lets find the ls
 123 if ls --color=auto -v &> /dev/null; then
 124     alias ls='ls --color=auto -v'
 125 elif gls --color=auto -v &> /dev/null; then
 126     alias ls='gls --color=auto -v'
 127 elif ls -G &> /dev/null; then
 128     alias ls='ls -G'
 129 else
 130     alias ls='ls -F'
 131 fi
 132 alias ll='ls -hlF'
 133 alias la='ls -ha'
 134 alias  l='ls -halF'
 135
 136
 137
 138 ##############
 139 # ps aliases #
 140 ##############
 141
 142 alias _psresources='ps -wAo pid,user,%cpu,%mem,stat,start,time,args'
 143 if [ "$(uname)" = "Linux" ]; then
 144     alias pscpu='_psresources --sort -%cpu|less -S'
 145     alias psmem='_psresources --sort -%mem|less -S'
 146     alias pstree='ps --forest -weo pid,user:16,args --sort start_time|less -S'
 147     alias pstime='ps -wAo pid,user,lstart,args --sort start_time|less -S'
 148 else
 149     alias pscpu='_psresources -r|less -S'
 150     alias psmem='_psresources -m|less -S'
 151     alias pstime='ps -wAo pid,user,lstart,args|less -S'
 152 fi
 153
 154
 155 ##################
 156 # Useful aliases #
 157 ##################
 158
 159 alias f='find . -iname'
 160 alias webshare='python3 -mhttp.server'
 161 if echo x | grep -q --color=auto x &> /dev/null; then
 162     alias grep='grep --color=auto'
 163 fi
 164 alias scp='scp -o ControlPath=none'
 165 alias bc='bc -ql'
 166 alias watch='watch -n1'
 167 alias sudo='sudo ' # ability to use aliases with sudo
 168 alias sudosu='sudo su -l -s /bin/bash'
 169
 170 if ! which pbcopy &> /dev/null; then
 171     alias pbcopy='xsel --clipboard --input'
 172     alias pbcopym='xsel --input'
 173     alias pbpaste='xsel --clipboard --output'
 174     alias pbpastem='xsel --output'
 175 fi
 176
 177 # Super man!
 178 #  Colourful headings
 179 #  Terminal title
 180 function man {
 181     echo -ne "\033]0;man $@\007"
 182
 183     env \
 184         LESS_TERMCAP_md=$'\E[01;38;5;74m' \
 185         LESS_TERMCAP_me=$'\E[0m' \
 186         LESS_TERMCAP_us=$'\E[04;38;5;146m' \
 187         LESS_TERMCAP_ue=$'\E[0m' \
 188     man --encoding ascii "$@"
 189 }
 190
 191 # Usage: mcd somedir
 192 # Creates the directory if it doesn't exist, and changes into it
 193 function mcd {
 194     mkdir -p "${1}" &&
 195     cd "${1}"
 196 }
 197
 198 # Usage: editf somefile
 199 # Does a recursive search of the current directory for somefile, then edits it
 200 function editf {
 201     find . -iname "${1}" -exec $EDITORBG '{}' +
 202 }
 203
 204 # Usage: edit somefile [otherfiles ...]
 205 function edit {
 206     $EDITORBG "$@"
 207 }
 208
 209 # Sets the nice and ionice priorities for the current shell to the lowest values
 210 function slowshell {
 211     ionice -c 3 -p $$
 212     renice -n 19 -p $$
 213 }
 214
 215 # SSH to an unknown host and print the new known_hosts entry
 216 function ssh_new {
 217     local new_known_hosts_file="$(mktemp)"
 218     ssh -o UserKnownHostsFile="$new_known_hosts_file" "$@" echo Connection ok
 219     cat "$new_known_hosts_file"
 220     rm -f "$new_known_hosts_file"
 221 }
 222
 223 # SSH without verifying host key
 224 function ssh_unsafe {
 225     ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null "$@"
 226 }
 227
 228
 229
 230 ###########
 231 # The end #
 232 ###########
 233
 234 # Local customisations
 235 [ -r "${HOME}/.bash/interactive_local" ] && source "${HOME}/.bash/interactive_local"
 236
 237 # Load bash completion if available
 238 [ -r "/etc/bash_completion" ] && source "/etc/bash_completion"
 239