Z-shell overview

2019-12-12 833 words 4 minutes

Reference

Very useful blog:

http://stevelosh.com/blog/2010/02/my-extravagant-zsh-prompt/#username-and-hostname

http://zsh.sourceforge.net/Intro/intro_12.html#SEC12

Variable

name	usage
%m	Hostname
%n	Username
%d	Directory from /
%~	Directory from ~
%t	time (12)
%T	time (24)

%d and %~ can add a number to specify how many previous path will show. Like %1~

Guide to zsh

Here is the link to A User’s Guide to the Z-Shell

single quotes & double quotes

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RPROMPT="$(command)"  # this will run command, then set RPROMPT to the result
RPROMPT='$(command)'  # this will set RPROMPT to run command each time it is printed

Date

man Date


%a	locale’s abbreviated weekday name (e.g., Sun)
%A	locale’s full weekday name (e.g., Sunday)
%b	locale’s abbreviated month name (e.g., Jan)
%B	locale’s full month name (e.g., January)
%c	locale’s date and time (e.g., Thu Mar 3 23:05:25 2005)
%C	century; like %Y, except omit last two digits (e.g., 20)
%d	day of month (e.g., 01)
%D	date; same as %m/%d/%y
%e	day of month, space padded; same as %_d
%F	full date; same as %Y-%m-%d
%g	last two digits of year of ISO week number (see %G)
%G	year of ISO week number (see %V); normally useful only with %V
%h	same as %b
%H	hour (00..23)
%I	hour (01..12)
%j	day of year (001..366)
%k	hour, space padded ( 0..23); same as %_H
%l	hour, space padded ( 1..12); same as %_I
%m	month (01..12)
%M	minute (00..59)
%n	a newline
%N	nanoseconds (000000000..999999999)
%p	locale’s equivalent of either AM or PM; blank if not known
%P	like %p, but lower case
%r	locale’s 12-hour clock time (e.g., 11:11:04 PM)
%R	24-hour hour and minute; same as %H:%M
%s	seconds since 1970-01-01 00:00:00 UTC
%S	second (00..60)
%t	a tab
%T	time; same as %H:%M:%S
%u	day of week (1..7); 1 is Monday
%U	week number of year, with Sunday as first day of week (00..53)
%V	ISO week number, with Monday as first day of week (01..53)
%w	day of week (0..6); 0 is Sunday
%W	week number of year, with Monday as first day of week (00..53)
%x	locale’s date representation (e.g., 12/31/99)
%X	locale’s time representation (e.g., 23:13:48)
%y	last two digits of year (00..99)
%Y	year
%z	+hhmm numeric time zone (e.g., -0400)
%:z	+hh:mm numeric time zone (e.g., -04:00)
%::z	+hh:mm:ss numeric time zone (e.g., -04:00:00)
%:::z	numeric time zone with : to necessary precision (e.g., -04, +05:30)
%Z	alphabetic time zone abbreviation (e.g., EDT)

My ZSH theme

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function prompt_char {
    git branch >/dev/null 2>/dev/null && echo '±' && return
    hg root >/dev/null 2>/dev/null && echo '☿' && return
    echo ''
}

function virtualenv_info {
    [ $VIRTUAL_ENV ] && echo '('`basename $VIRTUAL_ENV`') '
}

function timeClock {
    HOUR=$(date +'%I') # 1 - 12
    MIN=$(date +'%M') # 0 - 59
    if [[ $HOUR -eq 1 && MIN -lt 30 ]]; then echo '\U1F550'
    elif [[ $HOUR -eq 1 && MIN -ge 30 ]]; then echo '\U1F55C'
    elif [[ $HOUR -eq 2 && MIN -lt 30 ]]; then echo '\U1F551'
    elif [[ $HOUR -eq 2 && MIN -ge 30 ]]; then echo '\U1F55D'
    elif [[ $HOUR -eq 3 && MIN -lt 30 ]]; then echo '\U1F552'
    elif [[ $HOUR -eq 3 && MIN -ge 30 ]]; then echo '\U1F55E'
    elif [[ $HOUR -eq 4 && MIN -lt 30 ]]; then echo '\U1F553'
    elif [[ $HOUR -eq 4 && MIN -ge 30 ]]; then echo '\U1F55F'
    elif [[ $HOUR -eq 5 && MIN -lt 30 ]]; then echo '\U1F554'
    elif [[ $HOUR -eq 5 && MIN -ge 30 ]]; then echo '\U1F560'
    elif [[ $HOUR -eq 6 && MIN -lt 30 ]]; then echo '\U1F555'
    elif [[ $HOUR -eq 6 && MIN -ge 30 ]]; then echo '\U1F561'
    elif [[ $HOUR -eq 7 && MIN -lt 30 ]]; then echo '\U1F556'
    elif [[ $HOUR -eq 7 && MIN -ge 30 ]]; then echo '\U1F562'
    elif [[ $HOUR -eq 8 && MIN -lt 30 ]]; then echo '\U1F557'
    elif [[ $HOUR -eq 8 && MIN -ge 30 ]]; then echo '\U1F563'
    elif [[ $HOUR -eq 9 && MIN -lt 30 ]]; then echo '\U1F558'
    elif [[ $HOUR -eq 9 && MIN -ge 30 ]]; then echo '\U1F564'
    elif [[ $HOUR -eq 10 && MIN -lt 30 ]]; then echo '\U1F559'
    elif [[ $HOUR -eq 10 && MIN -ge 30 ]]; then echo '\U1F565'
    elif [[ $HOUR -eq 11 && MIN -lt 30 ]]; then echo '\U1F55A'
    elif [[ $HOUR -eq 11 && MIN -ge 30 ]]; then echo '\U1F566'
    elif [[ $HOUR -eq 12 && MIN -lt 30 ]]; then echo '\U1F55B'
    elif [[ $HOUR -eq 12 && MIN -ge 30 ]]; then echo '\U1F567'
    fi
}

PROMPT='%{$fg[yellow]%}🜲 %{$fg[red]%}%n%{$reset_color%} %{$fg_bold[green]%}%2~ $(git_prompt_info)%{$reset_color%}$(virtualenv_info)$(prompt_char) '

RPROMPT='$(timeClock)'

ZSH_THEME_GIT_PROMPT_PREFIX="%{$fg[blue]%}"
ZSH_THEME_GIT_PROMPT_SUFFIX="%{$reset_color%}"
ZSH_THEME_GIT_PROMPT_DIRTY="⥀ "
ZSH_THEME_GIT_PROMPT_CLEAN=""