X-Git-Url: https://ruderich.org/simon/gitweb/?a=blobdiff_plain;ds=inline;f=zsh%2Frc;h=ad641b9b3fbab962e721846d8d240b125e59af7d;hb=aa9db4c1b656eab6774b5ae1ade7c6f8bb13a01f;hp=7c833b5194b45263d16bc5b9b360f8cb8294a7ec;hpb=819bc9d7c9a57af67b48995ea17a1d8f63c6f58d;p=config%2Fdotfiles.git
diff --git a/zsh/rc b/zsh/rc
index 7c833b5..ad641b9 100644
--- a/zsh/rc
+++ b/zsh/rc
@@ -1,5 +1,20 @@
# Zsh configuration file.
+# Copyright (C) 2011-2012 Simon Ruderich
+#
+# This file is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This file is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this file. If not, see .
+
source_debug ". ~/.zsh/rc"
@@ -67,36 +82,27 @@ fi
# Simulate hooks using _functions arrays for Zsh versions older than 4.3.4. At
# the moment only precmd(), preexec() and chpwd() are simulated.
-#
-# At least 4.3.4 (not sure about later versions) has an error in add-zsh-hook
-# so the compatibility version is used there too.
-if [[ $ZSH_VERSION != (4.3.<5->|4.<4->*|<5->*) ]]; then
- # Provide add-zsh-hook which was added in 4.3.4.
- fpath=(~/.zsh/functions/compatibility $fpath)
-
+if [[ $ZSH_VERSION != (4.3.<4->*|4.<4->*|<5->*) ]]; then
# Run all functions defined in the ${precmd,preexec,chpwd}_functions
# arrays.
function precmd() {
for function in $precmd_functions; do
- $function $@
+ $function "$@"
done
}
function preexec() {
for function in $preexec_functions; do
- $function $@
+ $function "$@"
done
}
function chpwd() {
for function in $chpwd_functions; do
- $function $@
+ $function "$@"
done
}
fi
-# Autoload add-zsh-hook to add/remove zsh hook functions easily.
-autoload -Uz add-zsh-hook
-
-# Load zmv (zsh move) which is powerful to rename files.
+# Load zmv (zsh move) which is a powerful file renamer.
autoload -Uz zmv
@@ -112,12 +118,14 @@ setopt appendhistory
setopt incappendhistory
# If the same command is run multiple times store it only once in the history.
setopt histignoredups
+# Don't add lines starting with a space to the history.
+setopt histignorespace
# Vim like completions of previous executed commands (also enter Vi-mode). If
# called at the beginning it just recalls old commands (like cursor up), if
-# called after typing something, only lines starting with the typed are
-# returned. Very useful to get old commands quickly. Thanks to Mikachu in #zsh
-# on Freenode (2010-01-17 12:47 CET) for the information how to a use function
-# with bindkey.
+# called after typing something, only lines starting with the typed text are
+# returned. Very useful to get old commands quickly - in addition to the
+# history commands (!..). Thanks to Mikachu in #zsh on Freenode (2010-01-17
+# 12:47 CET) for the information how to a use function with bindkey.
zle -N my-vi-history-beginning-search-backward
my-vi-history-beginning-search-backward() {
local not_at_beginning_of_line
@@ -140,6 +148,15 @@ bindkey -a '^P' history-beginning-search-backward # binding for Vi-mode
# after calling ^P.
bindkey -a '^N' history-beginning-search-forward
+# Automatically push cd-ed directories on the directory stack.
+setopt autopushd
+# Don't push duplicates on the directory stack.
+setopt pushdignoredups
+# Exchange the meaning of + and - when specifying a directory on the stack.
+# This way cd - lists the last used directory first, which is more
+# natural because cd - goes to the last directory.
+setopt pushdminus
+
# PROMPT SETTINGS
@@ -150,7 +167,7 @@ autoload -Uz colors && colors
zmodload zsh/datetime
# Some shortcuts for colors. The %{...%} tells zsh that the data in between
-# doesn't need any space, necessary for correct prompt draw.
+# doesn't need any space, necessary for correct prompt drawing.
local red="%{${fg[red]}%}"
local blue="%{${fg[blue]}%}"
local green="%{${fg[green]}%}"
@@ -160,7 +177,7 @@ local default="%{${fg[default]}%}"
# vcs_info was added in 4.3.9 but it works in earlier versions too. So load it
# if the necessary files are available in ~/.zsh/functions/vcs_info (often a
# symbolic link to current checkout of Zsh's sources).
-if [[ $ZSH_VERSION == (4.3.<9->|4.<4->*|<5->*) ||
+if [[ $ZSH_VERSION == (4.3.<9->*|4.<4->*|<5->*) ||
-d ~/.zsh/functions/vcs_info ]]; then
# Update fpath to allow loading the vcs_info functions.
if [[ -d ~/.zsh/functions/vcs_info ]]; then
@@ -175,13 +192,13 @@ if [[ $ZSH_VERSION == (4.3.<9->|4.<4->*|<5->*) ||
zstyle ':vcs_info:*' enable git hg
# Check the repository for changes so they can be used in %u/%c (see
# below). This comes with a speed penalty for bigger repositories.
- zstyle ':vcs_info:*' check-for-changes true
+ zstyle ':vcs_info:*' check-for-changes yes
# Set style of vcs_info display. The current branch (green) and VCS (blue)
# is displayed. If there is an special action going on (merge, rebase)
# it's also displayed (red). Also display if there are unstaged or staged
# (%u/%c) changes.
- if [[ $ZSH_VERSION == (4.3.<11->|4.<4->*|<5->*) ||
+ if [[ $ZSH_VERSION == (4.3.<11->*|4.<4->*|<5->*) ||
-d ~/.zsh/functions/vcs_info ]]; then
zstyle ':vcs_info:*' formats \
"($green%b%u%c$default:$blue%s$default)"
@@ -203,7 +220,7 @@ if [[ $ZSH_VERSION == (4.3.<9->|4.<4->*|<5->*) ||
zstyle ':vcs_info:*' unstagedstr '¹'
zstyle ':vcs_info:*' stagedstr '²'
- # Default to running vcs_info. If possible we prevent running it later for
+ # Default to run vcs_info. If possible we prevent running it later for
# speed reasons. If set to a non empty value vcs_info is run.
FORCE_RUN_VCS_INFO=1
@@ -240,7 +257,7 @@ if [[ $ZSH_VERSION == (4.3.<9->|4.<4->*|<5->*) ||
prompt_chpwd() {
FORCE_RUN_VCS_INFO=1
}
- add-zsh-hook chpwd prompt_chpwd
+ chpwd_functions+=(prompt_chpwd)
# Used by prompt code below to determine if vcs_info should be run.
RUN_VCS_INFO=1
@@ -249,16 +266,15 @@ else
fi
# Set the prompt. A two line prompt is used. On the top left the current
-# working directory is displayed, on the right vcs_info (if available). On the
-# bottom left current user name and host is shown, the exit code of the last
-# command if it wasn't 0, the number of running jobs if not 0.
+# working directory is displayed, on the right vcs_info (if available) and the
+# current time in hex. On the bottom left current user name and host is shown,
+# the exit code of the last command if it wasn't 0, the number of running jobs
+# if not 0.
#
# The prompt is in green and blue to make easily detectable, the error exit
# code in red and bold and the job count in yellow.
#
# Thanks to Adam's prompt for the basic idea of this prompt.
-#
-# The current time is display in hex in the right prompt.
prompt_precmd() {
# Regex to remove elements which take no space. Used to calculate the
# width of the top prompt. Thanks to Bart's and Adam's prompt code in
@@ -300,23 +316,24 @@ $blue%B'%b$default\
$green%B%n%b$default@$green%B%m%b$default %(1j.$yellow%j$default.)%# \
%(?..($red%B%?%b$default%) )"
}
-add-zsh-hook precmd prompt_precmd
+precmd_functions+=(prompt_precmd)
-# When screen, xterm or rxvt is used set the name of the window to the
+# When screen, tmux, xterm or rxvt is used set the name of the window to the
# currently running program.
#
# When a program is started preexec() sets the window's name to it; when it
-# stops precmd() resets the window's name to 'zsh'.
+# stops precmd() resets the window's name to 'zsh'. 'fg' is supported and sets
+# the window's name to the resumed job.
#
-# It works with screen, xterm and rxvt.
+# It works with screen, tmux, xterm and rxvt.
#
# If a command is run with sudo or if the shell is running as root then a ! is
# added at the beginning of the command to make this clear. If a command is
# running on a different computer with ssh a @ is added at the beginning. If
-# screen is running on the remote machine instead of @screen @:hostname
-# (hostname replaced by the machine's hostname) is displayed. This only works
-# if the .zshrc on the server also uses this command.
+# screen/tmux is running on the remote machine instead of @screen @:hostname
+# (or @tmux ..; hostname replaced by the machine's hostname) is displayed.
+# This only works if the .zshrc on the server also uses this command.
#
# screen* is necessary as `screen` uses screen.linux for example for a linux
# console.
@@ -340,6 +357,14 @@ if [[ $TERM == screen* || $TERM == xterm* || $TERM == rxvt* ]]; then
program_name=${program_name#sudo }
program_sudo=yes
fi
+
+ # Replace fg with the resumed job name.
+ if [[ $program_name == fg ]]; then
+ program_name=${jobtexts[%+]}
+ elif [[ $program_name == fg\ * ]]; then
+ program_name=${jobtexts[${program_name#fg }]}
+ fi
+
# Remove all arguments from the program name.
program_name=${program_name%% *}
@@ -377,10 +402,10 @@ if [[ $TERM == screen* || $TERM == xterm* || $TERM == rxvt* ]]; then
# If screen is running in SSH then display "@:hostname" as title
# in the term/outer screen.
- if [[ $program_name == @screen ]]; then
+ if [[ $program_name == @screen || $program_name == @tmux ]]; then
program_name="@:${HOST//.*/}"
# Use "@:!hostname" for root screens.
- elif [[ $program_name == @!screen ]]; then
+ elif [[ $program_name == @!screen || $program_name == @!tmux ]]; then
program_name="@:!${HOST//.*/}"
fi
fi
@@ -417,9 +442,9 @@ if [[ $TERM == screen* || $TERM == xterm* || $TERM == rxvt* ]]; then
window_reset=
}
- # Sets the window title. Works with screen, xterm and rxvt. (V) escapes
- # all non-printable characters. Thanks to Mikachu in #zsh on Freenode
- # (2010-08-07 17:09 CEST).
+ # Sets the window title. Works with screen, tmux (which uses screen as
+ # TERM), xterm and rxvt. (V) escapes all non-printable characters. Thanks
+ # to Mikachu in #zsh on Freenode (2010-08-07 17:09 CEST).
if [[ $TERM == screen* ]]; then
window_title() {
print -n "\ek${(V)1}\e\\"
@@ -434,8 +459,8 @@ if [[ $TERM == screen* || $TERM == xterm* || $TERM == rxvt* ]]; then
fi
# Add the preexec() and precmd() hooks.
- add-zsh-hook preexec window_preexec
- add-zsh-hook precmd window_precmd
+ preexec_functions+=(window_preexec)
+ precmd_functions+=(window_precmd)
else
# Fallback if another TERM is used, necessary to run screen (see below in
# "RUN COMMANDS").
@@ -445,8 +470,8 @@ fi
# COMPLETION SETTINGS
-# Load the complist module which provides additions to completion lists
-# (coloring, scrollable).
+# Load the complist module which provides additional features to completion
+# lists (coloring, scrolling).
zmodload zsh/complist
# Use new completion system, store dumpfile in ~/.zsh/cache to prevent
# cluttering of ~/. $fpath must be set before calling this. Thanks to Adlai in
@@ -454,35 +479,80 @@ zmodload zsh/complist
# problem.
autoload -Uz compinit && compinit -d ~/.zsh/cache/zcompdump
-# Use cache to speed up completions.
-zstyle ':completion:*' use-cache on
+# Use cache to speed up some slow completions (dpkg, perl modules, etc.).
+zstyle ':completion:*' use-cache yes
zstyle ':completion:*' cache-path ~/.zsh/cache
-# Complete arguments and fix spelling mistakes when possible.
-zstyle ':completion:*' completer _complete _match _correct _approximate
-
-# Make sure the list of possible completions is displayed after pressing
-# the first time.
+# Let the completion system handle all completions, including expanding of
+# shell wildcards (which is handled by other shell mechanisms if the default
+# expand-or-complete is used).
+bindkey '^I' complete-word
+# If there are multiple matches after pressing always display them
+# immediately without requiring another . a completes to aa and
+# lists aaa, aab, aac as possible completions if the directory contains aaa,
+# aab, aac, bbb instead of only completing to aa.
setopt nolistambiguous
-# Allow completions in the middle of a text, i.e. "/usr/bin/whatever"
-# completes like "/usr/bin/". Useful when adding new options to commands.
-bindkey '^I' expand-or-complete-prefix
-# Try uppercase if the currently typed string doesn't match. This allows
-# typing in lowercase most of the time and completion fixes the case.
-zstyle ':completion:*' matcher-list '' 'm:{a-z}={A-Z}'
-
-# Use ls like colors for completions.
+# Support completions in the middle of a word, without this option zsh jumps
+# to the end of the word before the completion process begins. Is required for
+# the _prefix completer.
+setopt completeinword
+
+zstyle ':completion:::::' completer \
+ _expand _complete _prefix _ignored _approximate
+
+# Match specification to be tried when completing items. Each group ('...') is
+# tried after another if no matches were found, once matches are found no
+# other groups are tried. Thanks to Mikachu in #zsh on Freenode (2012-08-28
+# 18:48 CEST) for explanations.
+#
+# When matching also include the uppercase variant of typed characters
+# ('m:{a-z}={A-Z}'); using '' before this group would try the unmodified match
+# first, but I prefer to get all matches immediately (e.g. if Makefile and
+# makefile exist in the current directory echo m matches both, with '' it
+# would only match makefile because it found one match). This allows typing in
+# lowercase most of the time and completion fixes the case, which is faster.
+#
+# Don't perform these fixes in _approximate to prevent it from changing the
+# input too much. Thanks to the book "From Bash to Z Shell" page 249.
+zstyle ':completion:*:(^approximate):*' matcher-list 'm:{a-z}={A-Z}'
+
+# Allow one mistake per three characters. Thanks to the book "From Bash to Z
+# Shell" page 248.
+zstyle -e ':completion:*:approximate:*' max-errors \
+ 'reply=( $(( ($#PREFIX + $#SUFFIX) / 3 )) )'
+
+# Expand shell wildcards to all matching files after . echo *
+# results in a b c if the directory contains the files a, b, c. Thanks to the
+# book "From Bash to Z Shell" page 246.
+zstyle ':completion:*:expand:*' tag-order all-expansions
+# Keep prefixes unexpanded if possible: $HOME/ doesn't expand $HOME,
+# while $HOME does.
+zstyle ':completion:*:expand:*' keep-prefix yes
+
+# When completing multiple path components display all matching ambiguous
+# components. For example /u/s/d/r/README lists all matching READMEs
+# instead of just the matching paths up to the r/ component. Can be slow if
+# there are many matching files.
+zstyle ':completion:*' list-suffixes yes
+
+# Use ls-like colors for completions.
zstyle ':completion:*' list-colors ${(s.:.)LS_COLORS}
# Make completion lists scrollable so "do you wish to see all n possibilities"
-# is no longer displayed.
-zstyle ':completion:*' list-prompt '%p'
-# Display group name (like 'external command', 'alias', etc.) when there are
-# multiple matches in bold.
-zstyle ':completion:*' format ' %B%d%b:'
+# is no longer displayed. Display current position in percent (%p).
+zstyle ':completion:*:default' list-prompt '%p'
+# Display group name (%d) (like 'external command', 'alias', etc.), in bold.
+# Also display a message if _approximate found errors and no matches were
+# found.
+zstyle ':completion:*' format ' %B%d%b:'
+zstyle ':completion:*:corrections' format ' %B%d%b (errors: %e)'
+zstyle ':completion:*:warnings' format ' %Bno matches for %d%b'
# Display different types of matches separately.
zstyle ':completion:*' group-name ''
+# Separate man pages by section.
+zstyle ':completion:*' separate-sections yes
+
# Don't draw trailing / in bold (new in zsh 4.3.11). Thanks to Mikachu in #zsh
# on Freenode for the fix (2010-12-17 13:46 CET).
zle_highlight=(suffix:none)
@@ -491,22 +561,25 @@ zle_highlight=(suffix:none)
zstyle ':completion:*:functions' ignored-patterns '_*'
# Ignore parent directory.
zstyle ':completion:*:(cd|mv|cp):*' ignore-parents parent pwd
-# Always complete one value (file name) only once in the current line. This
-# makes it easy to complete multiple values because I can just press tab to
-# get all possible values. Otherwise I would have to skip the first value
-# again and again.
-zstyle ':completion:*' ignore-line yes
+# Always complete file names only once in the current line. This makes it easy
+# to complete multiple file names because I can just press tab to get all
+# possible values. Otherwise I would have to skip the first value again and
+# again. Thanks to Mikachu in #zsh on Freenode (2011-08-11 14:42 CEST) for the
+# hint to use other. other is necessary so prefix lists both prefix and
+# prefixrest if the directory contains prefix and prefixrest.
+zstyle ':completion:*:all-files' ignore-line other
# Except for mv and cp, because I often want to use to similar names, so I
# complete to the same and change it.
-zstyle ':completion:*:(mv|cp):*' ignore-line no
+zstyle ':completion:*:(mv|cp):all-files' ignore-line no
+
# Don't complete ./config.* files, this makes running ./configure much
# simpler. Thanks to Nomexous in #zsh on Freenode (2010-03-16 01:54 CET)
zstyle ':completion:*:*:-command-:*' ignored-patterns './config.*'
-
# Don't complete unwanted files with Vim. Thanks to Nomexous in #zsh on
-# Freenode (2010-06-06 04:54 CEST). See below to complete them.
-zstyle ':completion:*:*:vim:*:all-files' ignored-patterns '*.aux' '*.log' \
- '*.pdf' '*.class'
+# Freenode (2010-06-06 04:54 CEST). See below for a way to complete them.
+zstyle ':completion:*:*:vim:*:all-files' ignored-patterns \
+ '*.aux' '*.log' '*.pdf' \
+ '*.class'
# Provide a fallback completer which always completes files. Useful when Zsh's
# completion is too "smart". Thanks to Frank Terbeck
@@ -528,6 +601,12 @@ bindkey '^F' complete-files
# for a fix (-r) to handle whitespace/quotes
# correctly, both on the Zsh mailing list.
TRAPINT() {
+ # Don't store this line in history if histignorespace is enabled and the
+ # line starts with a space.
+ if [[ -o histignorespace && ${BUFFER[1]} = " " ]]; then
+ return $1
+ fi
+
# Store the current buffer in the history.
zle && print -s -r -- $BUFFER
@@ -543,15 +622,21 @@ fi
# Make sure aliases are expanded when using sudo.
alias sudo='sudo '
-# Global aliases for often used commands in the command line.
+# Global aliases for often used redirections.
alias -g E='2>&1'
-alias -g L='E | less'
-alias -g D='E | colordiff L'
+alias -g N='>/dev/null'
+alias -g EN='2>/dev/null'
+alias -g L='2>&1 | less'
+alias -g LS='2>&1 | less -S' # -S prevents wrapping of long lines
+alias -g D='2>&1 | colordiff | less'
+# Global aliases for often used commands in the command line.
+alias -g A='| awk'
alias -g G='| grep'
-alias -g S='| sort'
-alias -g U='| uniq'
alias -g H='| head'
+alias -g P='| perl'
+alias -g S='| sort'
alias -g T='| tail'
+alias -g U='| uniq'
# Make going up directories simple.
alias -g ...='../..'
@@ -567,33 +652,50 @@ if [[ -n $window_reset ]]; then
alias clear='clear; window_reset=yes; window_precmd reset'
fi
+
+# CUSTOM COMMANDS
+
# Display all branches (except stash) in gitk but only 200 commits as this is
-# much faster. Also put in the background and disown. Thanks to sitaram in
-# #git on Freenode (2009-04-20 15:51).
-gitk() {
- command gitk \
- --max-count=200 \
- $(git rev-parse --symbolic-full-name --remotes --branches) \
- $@ &
+# much faster. Also put in the background and disown. Thanks to drizzd in #git
+# on Freenode (2010-04-03 17:55 CEST).
+(( $+commands[gitk] )) && gitk() {
+ command gitk --max-count=200 --branches --remotes --tags "$@" &
disown %command
}
# Same for tig (except the disown part as it's no GUI program).
-tig() {
- command tig \
- --max-count=200 \
- $(git rev-parse --symbolic-full-name --remotes --branches) \
- $@
+(( $+commands[tig] )) && tig() {
+ command tig --max-count=200 --branches --remotes --tags "$@"
}
# Pipe output through less.
-tree() {
+(( $+commands[tree] )) && tree() {
command tree -C "$@" | less
}
-# Automatically disown.
-xpdf() {
- command xpdf "$@" &
- disown %command
+# Choose the "best" PDF viewer available: zathura, then xpdf. Also setup
+# completion for `pdf`.
+if (( $+commands[zathura] )); then
+ pdf() {
+ command zathura "$@" 2>/dev/null &
+ disown %command
+ }
+ # No completion for zathura yet.
+ compdef _xpdf pdf
+elif (( $+commands[xpdf] )); then
+ pdf() {
+ command xpdf "$@" 2>/dev/null &
+ disown %command
+ }
+ compdef _xpdf pdf
+fi
+
+# GHCI doesn't use readline, force it if rlwrap is available.
+(( $+commands[rlwrap] )) && ghci() {
+ command rlwrap \
+ --always-readline --complete-filenames -t dumb \
+ --histsize 5000 \
+ --file ~/.shell/rlwrap/ghci \
+ ghci "$@" 2>&1
}
@@ -610,26 +712,48 @@ fi
# LOAD ADDITIONAL CONFIGURATION FILES
+# Configuration option for rc.local to use GNU screen/tmux. By default GNU
+# screen is used. Possible values: screen, tmux.
+use_multiplexer=screen
+
source_config ~/.zsh/rc.local
# RUN COMMANDS
-# If not already in screen reattach to a running session or create a new one.
-# This also starts screen on a remote server when connecting through ssh.
-if [[ $TERM != dumb && $TERM != linux && -z $STY ]]; then
+# If not already in screen or tmux, reattach to a running session or create a
+# new one. This also starts screen/tmux on a remote server when connecting
+# through ssh.
+if [[ $TERM != dumb && $TERM != linux && -z $STY && -z $TMUX ]]; then
# Get running detached sessions.
- session=$(screen -list | grep 'Detached' | awk '{ print $1; exit }')
+ if [[ $use_multiplexer = screen ]]; then
+ session=$(screen -list | grep 'Detached' | awk '{ print $1; exit }')
+ elif [[ $use_multiplexer = tmux ]]; then
+ session=$(tmux list-sessions 2>/dev/null \
+ | sed '/(attached)$/ d; s/^\([0-9]\{1,\}\).*$/\1/; q')
+ fi
# As we exec later we have to set the title here.
- window_preexec "screen"
+ if [[ $use_multiplexer = screen ]]; then
+ window_preexec "screen"
+ elif [[ $use_multiplexer = tmux ]]; then
+ window_preexec "tmux"
+ fi
# Create a new session if none is running.
if [[ -z $session ]]; then
- exec screen
+ if [[ $use_multiplexer = screen ]]; then
+ exec screen
+ elif [[ $use_multiplexer = tmux ]]; then
+ exec tmux
+ fi
# Reattach to a running session.
else
- exec screen -r $session
+ if [[ $use_multiplexer = screen ]]; then
+ exec screen -r $session
+ elif [[ $use_multiplexer = tmux ]]; then
+ exec tmux attach-session -t $session
+ fi
fi
fi
@@ -641,7 +765,7 @@ fi
# cases it doesn't work, the E alias can be used as workaround.
#
# Moved in the "run commands" section to prevent one unnecessary zsh process
-# when starting screen (see above).
+# when starting screen/tmux (see above).
exec 2>>(while read -r -k -u 0 line; do
printf '\e[91m%s\e[0m' "$line";
print -n $'\0';
@@ -650,7 +774,7 @@ done &)
# Run reminder and redisplay it every four hours (if it's available).
PERIOD=14400
periodic() {
- which rem > /dev/null && [ -f ~/.reminders ] && rem -h
+ (( $+commands[rem] )) && [ -f ~/.reminders ] && rem -h
}