From: James Bunton <jamesbunton@delx.net.au>
Date: Thu, 27 Oct 2016 07:41:31 +0000 (+1100)
Subject: bash: BSD friendly
X-Git-Url: https://code.delx.au/dotfiles/commitdiff_plain/79e1077d8fea6a7d39793507c0752b19aa1dca62

bash: BSD friendly
---

diff --git a/.bash/interactive b/.bash/interactive
index 3d1810f..6ca1cac 100644
--- a/.bash/interactive
+++ b/.bash/interactive
@@ -1,5 +1,11 @@
 #! bash
 
+
+
+##################
+# Terminal setup #
+##################
+
 # Check for unsupported TERM variable
 if ! tput init &> /dev/null; then
     echo "Warning! TERM=$TERM unsupported, using TERM=xterm"
@@ -9,8 +15,16 @@ fi
 # Disable CTRL-s / CTRL-q
 stty -ixon
 
+# Sets colour scheme in apps like Vim
+export COLORFGBG="15;0"
+
+
 
-# Fancy PS1 with revision control status for git, hg, svn
+#############
+# 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 {
@@ -36,17 +50,36 @@ function my_svn_ps1 {
     echo -n " ($s)"
 }
 
-if [ -z "$debian_chroot" -a -r /etc/debian_chroot ]; then
-    debian_chroot=$(cat /etc/debian_chroot)
-fi
-PS1='${debian_chroot:+($debian_chroot)}'
-PS1="$PS1"'\[\033[00;31m\]\u@\h\[\033[00m\]:\[\033[00;34m\]\w\[\033[00m\]'
-PS1="$PS1"'\[\033[00;36m\]$(my_git_ps1 ; my_hg_ps1 ; my_svn_ps1)\[\033[00m\]'
+# 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\$ '
 
 
 
-# Display return codes on error
+################
+# xterm titles #
+################
+
+# hostname:workingdir
+DISPLAY_TITLE_COMMAND='echo -ne "\033]0;$(hostname| cut -d. -f1):${PWD/$HOME/~}\007"'
+
+if [[ "$TERM" =~ ^xterm ]]; then
+    PROMPT_COMMAND="$DISPLAY_TITLE_COMMAND"
+fi
+
+if [[ "$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
@@ -58,69 +91,92 @@ trap print_exit_code ERR
 
 
 
-# ls colours
-eval $(TERM=xterm dircolors 2> /dev/null)
+################
+# bash options #
+################
 
-if [ "${DARKTERM:-1}" -eq 1 ]; then
+# Bash should check the terminal size after every command terminates
+shopt -s checkwinsize
 
-    # Sets colour scheme in apps like Vim
-    export COLORFGBG="15;0"
+# Don't attempt to tab-complete an empty line
+shopt -s no_empty_cmd_completion
 
-    # Bold ls colours
-    LS_COLORS="$(echo "${LS_COLORS}" | sed 's/00;/01;/g')"
-    LSCOLORS="ExFxCxDxBxEGEDABAGACAD" # BSD ls
-    PS1="$(echo "${PS1}" | sed 's/00;/01;/g')"
+# Prevent overwriting existing files on stdout redirection
+set -o noclobber
 
-else
+# Better history
+shopt -s histappend
+shopt -s cmdhist
+export HISTCONTROL="erasedups:ignoredups"
+export HISTSIZE="100000"
+export HISTTIMEFORMAT="%F %T "
 
-    # Sets colour scheme in apps like Vim
-    export COLORFGBG="0;15"
 
-    # Unbold ls colours
-    LS_COLORS="$(echo "${LS_COLORS}" | sed 's/01;/00;/g')"
-    LSCOLORS="exfxcxdxbxegedabagacad" # BSD ls
-fi
 
-# Display 'hostname:workingdir'
-DISPLAY_TITLE_COMMAND='echo -ne "\033]0;$(hostname| cut -d. -f1):${PWD/$HOME/~}\007"'
+##########################
+# ls aliases and colours #
+##########################
 
-# xterm title
-if [[ "$TERM" =~ ^xterm ]]; then
-    PROMPT_COMMAND="$DISPLAY_TITLE_COMMAND"
-fi
+# GNU ls colours
+eval $(TERM=xterm dircolors 2> /dev/null)
 
-# screen window displays current command
-if [[ "$TERM" =~ ^screen ]]; then
-    PROMPT_COMMAND="${DISPLAY_TITLE_COMMAND}; echo -ne '\033k\033\\'"
-fi
+# BSD ls colours
+export LSCOLORS="ExFxCxDxBxEGEDABAGACAD"
 
-# Useful aliases
-alias ls='ls --color=auto -v'
+# 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'
+
+
+
+##############
+# 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='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 _psresources='ps -weo pid,user:16,%cpu,%mem,stat,start_time,bsdtime,args'
-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 -weo pid,user:16,lstart,args --sort start_time|less -S'
 alias pbcopy='xsel --clipboard --input'
 alias pbcopym='xsel --input'
 alias pbpaste='xsel --clipboard --output'
 alias pbpastem='xsel --output'
 
-
-
 # Super man!
 #  Colourful headings
 #  Terminal title
@@ -173,21 +229,10 @@ function ssh_unsafe {
 }
 
 
-# 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
 
-# Better history
-shopt -s histappend
-shopt -s cmdhist
-export HISTCONTROL="erasedups:ignoredups"
-export HISTSIZE="100000"
-export HISTTIMEFORMAT="%F %T "
+###########
+# The end #
+###########
 
 # Local customisations
 [ -r "${HOME}/.bash/interactive_local" ] && source "${HOME}/.bash/interactive_local"