bash: adapt bashrc for debian, taking some niceties from its bashrc

diff --git a/.bashrc b/.bashrc
index 91f47fb..daa4d00 100644 (file)
--- a/.bashrc
+++ b/.bashrc
@@ -16,8 +16,10 @@ then
     return
 fi
 
-# Source the system-wide file.
-source /etc/bashrc
+if [ -n "$IS_GUIX_SYSTEM" ]; then
+    # Source the system-wide file.
+    source /etc/bashrc
+fi
 
 # from https://unix.stackexchange.com/a/55935
 a_prompt() {
@@ -37,11 +39,22 @@ fi
 # echo -e "\033[6 q"              # non-blinking
 
 # various bash tweaks
+# append to the history file, don't overwrite it
 shopt -s histappend
 shopt -s cmdhist
+# check the window size after each command and, if necessary,
+# update the values of LINES and COLUMNS.
+shopt -s checkwinsize
+# If set, the pattern "**" used in a pathname expansion context will
+# match all files and zero or more directories and subdirectories.
+#shopt -s globstar
+# for setting history length see HISTSIZE and HISTFILESIZE in bash(1)
 HISTSIZE=
 HISTFILESIZE=
+# don't put duplicate lines or lines starting with space in the
+# history.
 HISTCONTROL=ignoreboth
+# ignore a few very common commands and don't add them to history
 HISTIGNORE='ls:l:s:g:[bf]g:history'
 HISTTIMEFORMAT='%F %T '
 stty stop ""
@@ -50,7 +63,11 @@ stty stop ""
 alias ls='ls -p --color=auto'
 alias l='ls -lh'                # long format and human-readable sizes
 alias ll='l -A'                 # long format, all files
+alias dir='dir --color=auto'
+alias vdir='vdir --color=auto'
 alias grep='grep --color=auto'
+alias fgrep='fgrep --color=auto'
+alias egrep='egrep --color=auto'
 alias mpv="mpv --ytdl-format mp4"
 alias mv="mv -iv"
 alias cp="cp -iv"
@@ -67,6 +84,22 @@ aur() {
    cd ${1}
 }
 
+# separate alias definitions file, if exists
+if [ -f ~/.bash_aliases ]; then
+    . ~/.bash_aliases
+fi
+
+# enable programmable completion features (not needed if already
+# enabled in /etc/bash.bashrc and if /etc/profile sources
+# /etc/bash.bashrc).
+if ! shopt -oq posix; then
+  if [ -f /usr/share/bash-completion/bash_completion ]; then
+    . /usr/share/bash-completion/bash_completion
+  elif [ -f /etc/bash_completion ]; then
+    . /etc/bash_completion
+  fi
+fi
+
 if [ -z "$IS_GUIX_SYSTEM" ]; then
     if ! pgrep -u "$USER" ssh-agent > /dev/null; then
         ssh-agent > ~/.ssh-agent-thing