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 PS1="$PS1"'\n\$ '
  59
  60
  61
  62 ################
  63 # xterm titles #
  64 ################
  65
  66 # hostname:workingdir
  67 DISPLAY_TITLE_COMMAND='echo -ne "\033]0;$(hostname| cut -d. -f1):${PWD/$HOME/~}\007"'
  68
  69 if [[ "$TERM" =~ ^xterm ]]; then
  70     PROMPT_COMMAND="$DISPLAY_TITLE_COMMAND"
  71 fi
  72
  73 if [[ "$TERM" =~ ^screen ]]; then
  74     PROMPT_COMMAND="${DISPLAY_TITLE_COMMAND}; echo -ne '\033k\033\\'"
  75 fi
  76
  77
  78
  79 #################################
  80 # Display return codes on error #
  81 #################################
  82
  83 function print_exit_code {
  84     _exit_msg="\033[01;33mexit code: $?\033[00m"
  85     if [ -z "${BASH_SOURCE[1]}" ]; then
  86         echo -e "$_exit_msg"
  87     fi
  88     unset _exit_msg
  89 }
  90 trap print_exit_code ERR
  91
  92
  93
  94 ################
  95 # bash options #
  96 ################
  97
  98 # Bash should check the terminal size after every command terminates
  99 shopt -s checkwinsize
 100
 101 # Don't attempt to tab-complete an empty line
 102 shopt -s no_empty_cmd_completion
 103
 104 # Prevent overwriting existing files on stdout redirection
 105 set -o noclobber
 106
 107 # Better history
 108 shopt -s histappend
 109 shopt -s cmdhist
 110 export HISTCONTROL="erasedups:ignoredups"
 111 export HISTSIZE="100000"
 112 export HISTTIMEFORMAT="%F %T "
 113
 114
 115
 116 ##########################
 117 # ls aliases and colours #
 118 ##########################
 119
 120 # GNU ls colours
 121 eval $(TERM=xterm dircolors 2> /dev/null)
 122
 123 # BSD ls colours
 124 export LSCOLORS="ExFxCxDxBxEGEDABAGACAD"
 125
 126 # Lets find the ls
 127 if ls --color=auto -v &> /dev/null; then
 128     alias ls='ls --color=auto -v'
 129 elif gls --color=auto -v &> /dev/null; then
 130     alias ls='gls --color=auto -v'
 131 elif ls -G &> /dev/null; then
 132     alias ls='ls -G'
 133 else
 134     alias ls='ls -F'
 135 fi
 136 alias ll='ls -hlF'
 137 alias la='ls -ha'
 138 alias  l='ls -halF'
 139
 140
 141
 142 ##############
 143 # ps aliases #
 144 ##############
 145
 146 alias _psresources='ps -wAo pid,user,%cpu,%mem,stat,start,time,args'
 147 if [ "$(uname)" = "Linux" ]; then
 148     alias pscpu='_psresources --sort -%cpu|less -S'
 149     alias psmem='_psresources --sort -%mem|less -S'
 150     alias pstree='ps --forest -weo pid,user:16,args --sort start_time|less -S'
 151     alias pstime='ps -wAo pid,user,lstart,args --sort start_time|less -S'
 152 else
 153     alias pscpu='_psresources -r|less -S'
 154     alias psmem='_psresources -m|less -S'
 155     alias pstime='ps -wAo pid,user,lstart,args|less -S'
 156 fi
 157
 158
 159 ##################
 160 # Useful aliases #
 161 ##################
 162
 163 alias f='find . -iname'
 164 alias webshare='python3 -mhttp.server'
 165 alias less='less -R'
 166 if echo x | grep -q --color=auto x &> /dev/null; then
 167     alias grep='grep --color=auto'
 168 fi
 169 alias scp='scp -o ControlPath=none'
 170 alias bc='bc -ql'
 171 alias watch='watch -n1'
 172 alias sudo='sudo ' # ability to use aliases with sudo
 173 alias sudosu='sudo su -l -s /bin/bash'
 174 alias pbcopy='xsel --clipboard --input'
 175 alias pbcopym='xsel --input'
 176 alias pbpaste='xsel --clipboard --output'
 177 alias pbpastem='xsel --output'
 178
 179 # Super man!
 180 #  Colourful headings
 181 #  Terminal title
 182 function man {
 183     echo -ne "\033]0;man $@\007"
 184
 185     env \
 186         LESS_TERMCAP_md=$'\E[01;38;5;74m' \
 187         LESS_TERMCAP_me=$'\E[0m' \
 188         LESS_TERMCAP_us=$'\E[04;38;5;146m' \
 189         LESS_TERMCAP_ue=$'\E[0m' \
 190     man "$@"
 191 }
 192
 193 # Usage: mcd somedir
 194 # Creates the directory if it doesn't exist, and changes into it
 195 function mcd {
 196     mkdir -p "${1}" &&
 197     cd "${1}"
 198 }
 199
 200 # Usage: editf somefile
 201 # Does a recursive search of the current directory for somefile, then edits it
 202 function editf {
 203     find . -iname "${1}" -exec $EDITORBG '{}' +
 204 }
 205
 206 # Usage: edit somefile [otherfiles ...]
 207 function edit {
 208     $EDITORBG "$@"
 209 }
 210
 211 # Sets the nice and ionice priorities for the current shell to the lowest values
 212 function slowshell {
 213     ionice -c 3 -p $$
 214     renice -n 19 -p $$
 215 }
 216
 217 # SSH to an unknown host and print the new known_hosts entry
 218 function ssh_new {
 219     local new_known_hosts_file="$(mktemp)"
 220     ssh -o UserKnownHostsFile="$new_known_hosts_file" "$@" echo Connection ok
 221     cat "$new_known_hosts_file"
 222     rm -f "$new_known_hosts_file"
 223 }
 224
 225 # SSH without verifying host key
 226 function ssh_unsafe {
 227     ssh -o StrictHostKeyChecking=no "$@"
 228 }
 229
 230
 231
 232 ###########
 233 # The end #
 234 ###########
 235
 236 # Local customisations
 237 [ -r "${HOME}/.bash/interactive_local" ] && source "${HOME}/.bash/interactive_local"
 238
 239 # Load bash completion if available
 240 [ -r "/etc/bash_completion" ] && source "/etc/bash_completion"
 241