Modifying the konsole prompt

[viking60]

In the terminal or konsole I have often wanted to change the look and function. There is color prompt etc.. but it is fairly limited.
Here is a way:
in your home directory:

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nano .bashrc

This will pop .bashrc with a content that could looke like this:

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# .bashrc

# User specific aliases and functions

# Source global definitions
if [ -f /etc/bashrc ]; then
   . /etc/bashrc
fi

or PSI= etc etc.

Now comment out everything in the file with # so it looks like this:

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# .bashrc

# User specific aliases and functions

# Source global definitions
#if [ -f /etc/bashrc ]; then
#   . /etc/bashrc
#fi

Now copy this in to the file below the lines you commented out:

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bash_prompt_cmd() {
RTN=$?



smiley() {
    if [ $1 == 0 ] ; then
echo ":)"
    else
echo ":("
       fi
    }
smileyc() {
    if [ $1 == 0 ] ; then
echo $GREEN
else
echo $RED
       fi
    }
 if [ $(tput colors) -gt 0 ] ; then
RED=$(tput setaf 1)
GREEN=$(tput setaf 2)
RST=$(tput op)
fi
smiley=$(smiley $RTN)
smileyc=$(smileyc $RTN)
        local CY="\[\e[1;31m\]" # Each is 12 chars long
        local BL="\[\e[1;34m\]"
        local WH="\[\e[1;37m\]"
        local BR="\[\e[0;33m\]"
        local RE="\[\e[1;31m\]"
        local PROMPT="${CY}$"
        [ $UID -eq "0" ] && PROMPT="${RE}#"

        # Add the first part of the prompt: username,host, and time
        local PROMPT_PWD=""
        local PS1_T1="$BL.:[ $CY`whoami`@`hostname` $BL: $CY\t $BL:$CY "
        local ps_len=$(( ${#PS1_T1} - 12 * 6 + 6 + 4 )) #Len adjust for colors, time and var
        local PS1_T2=" $BL]:.\n\[\$smileyc\]\$smiley\[$RST\] "
        local startpos=""

        PROMPT_PWD="${PWD/#$HOME/~}"
        local overflow_prefix="..."
        local pwdlen=${#PROMPT_PWD}
        local maxpwdlen=$(( COLUMNS - ps_len ))
        # Sometimes COLUMNS isn't initiliased, if it isn't, fall back on 80
        [ $maxpwdlen -lt 0 ] && maxpwdlen=$(( 80 - ps_len ))

        if [ $pwdlen -gt $maxpwdlen ] ; then
                startpos=$(( $pwdlen - maxpwdlen + ${#overflow_prefix} ))
                PROMPT_PWD="${overflow_prefix}${PROMPT_PWD:$startpos:$maxpwdlen}"
        fi
        export PS1="${PS1_T1}${PROMPT_PWD}${PS1_T2}"
smiley=$(smiley $RTN)
smileyc=$(smileyc $RTN)
        local CY="\[\e[1;31m\]" # Each is 12 chars long
        local BL="\[\e[1;34m\]"
        local WH="\[\e[1;37m\]"
        local BR="\[\e[0;33m\]"
        local RE="\[\e[1;31m\]"
        local PROMPT="${CY}$"
        [ $UID -eq "0" ] && PROMPT="${RE}#"

        # Add the first part of the prompt: username,host, and time
        local PROMPT_PWD=""
        local PS1_T1="$BL.:[ $CY`whoami`@`hostname` $BL: $CY\t $BL:$CY "
        local ps_len=$(( ${#PS1_T1} - 12 * 6 + 6 + 4 )) #Len adjust for colors, time and var
        local PS1_T2=" $BL]:.\n\[\$smileyc\]\$smiley\[$RST\] "
        local startpos=""

        PROMPT_PWD="${PWD/#$HOME/~}"
        local overflow_prefix="..."
        local pwdlen=${#PROMPT_PWD}
        local maxpwdlen=$(( COLUMNS - ps_len ))
        # Sometimes COLUMNS isn't initiliased, if it isn't, fall back on 80
        [ $maxpwdlen -lt 0 ] && maxpwdlen=$(( 80 - ps_len ))

        if [ $pwdlen -gt $maxpwdlen ] ; then
                startpos=$(( $pwdlen - maxpwdlen + ${#overflow_prefix} ))
                PROMPT_PWD="${overflow_prefix}${PROMPT_PWD:$startpos:$maxpwdlen}"
        fi
        export PS1="${PS1_T1}${PROMPT_PWD}${PS1_T2}"
}
PROMPT_COMMAND=bash_prompt_cmd


This is my favorite. It gives a nice and clean overview where you are in your navigation and it has a smiley system. Green smile for the right code, and if you enter the wrong code you get a red smiley.

I have tested it both in Arch (Installed cope-git first) and Mandriva.
It looks like this:

If you want the same (or a different) effect on the root prompt; just create .bashrc in /root and put the content there.
If you like it let me know. Or post your favourite!
(PS this is not going to look great in Mandriva as root user)
Good luck.

[dedanna1029]

(Installed cope-git first)

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# pacman -S cope-git
-->error: 'cope-git': could not find or read package

This is as root:

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# ls
Desktop  Downloads  Xorg.0.log.txt  depmod.txt   dmesg2.txt  xorg.conf.new

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# nano .bashrc

(no response, as it's not there).

[viking60]

Oh sorry it is in aur So you will have to use yaourt cope-git. (For instructions on installing yaourt look elsewhere in this forum or better: Find it in the Arch wiki and follow the instructions)

[dedanna1029]

I already know how to use AUR and yaourt, thanks. That will be good for others.

[viking60]

That will be good for others.

That is the whole idea - kind of

[dedanna1029]

Now when I pull up a terminal, this comes up with it:

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bash: /home/dedanna/.bashrc: line 47: syntax error near unexpected token `time'
bash: /home/dedanna/.bashrc: line 47: `for colors, time and var'

[dedanna1029]

It is still doing it, even after the cope-git install.

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bash: /home/dedanna/.bashrc: line 47: syntax error near unexpected token `time'
bash: /home/dedanna/.bashrc: line 47: `for colors, time and var'

Having packaged and come across many syntax errors, I have learned that when it says there is one, there is one. I think the code for .bashrc needs some work - I will get to it when I can. For now, I'm outta here, and off to sleep.

[dedanna1029]

I have fixed the script. Line #67 was the issue; "#Len adjust for colors, time and var" should have been brought down to the next line, and I have done so, inserted it into .bashrc, and am now able to run terminal correctly with this:

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bash_prompt_cmd() {
RTN=$?



smiley() {
    if [ $1 == 0 ] ; then
echo ":)"
    else
echo ":("
       fi
    }
smileyc() {
    if [ $1 == 0 ] ; then
echo $GREEN
else
echo $RED
       fi
    }
if [ $(tput colors) -gt 0 ] ; then
RED=$(tput setaf 1)
GREEN=$(tput setaf 2)
RST=$(tput op)
fi
smiley=$(smiley $RTN)
smileyc=$(smileyc $RTN)
        local CY="\[\e[1;31m\]" # Each is 12 chars long
        local BL="\[\e[1;34m\]"
        local WH="\[\e[1;37m\]"
        local BR="\[\e[0;33m\]"
        local RE="\[\e[1;31m\]"
        local PROMPT="${CY}$"
        [ $UID -eq "0" ] && PROMPT="${RE}#"

        # Add the first part of the prompt: username,host, and time
        local PROMPT_PWD=""
        local PS1_T1="$BL.:[ $CY`whoami`@`hostname` $BL: $CY\t $BL:$CY "
        local ps_len=$(( ${#PS1_T1} - 12 * 6 + 6 + 4 )) #Len adjust for colors, time and var
        local PS1_T2=" $BL]:.\n\[\$smileyc\]\$smiley\[$RST\] "
        local startpos=""

        PROMPT_PWD="${PWD/#$HOME/~}"
        local overflow_prefix="..."
        local pwdlen=${#PROMPT_PWD}
        local maxpwdlen=$(( COLUMNS - ps_len ))
        # Sometimes COLUMNS isn't initiliased, if it isn't, fall back on 80
        [ $maxpwdlen -lt 0 ] && maxpwdlen=$(( 80 - ps_len ))

        if [ $pwdlen -gt $maxpwdlen ] ; then
                startpos=$(( $pwdlen - maxpwdlen + ${#overflow_prefix} ))
                PROMPT_PWD="${overflow_prefix}${PROMPT_PWD:$startpos:$maxpwdlen}"
        fi
        export PS1="${PS1_T1}${PROMPT_PWD}${PS1_T2}"
smiley=$(smiley $RTN)
smileyc=$(smileyc $RTN)
        local CY="\[\e[1;31m\]" # Each is 12 chars long
        local BL="\[\e[1;34m\]"
        local WH="\[\e[1;37m\]"
        local BR="\[\e[0;33m\]"
        local RE="\[\e[1;31m\]"
        local PROMPT="${CY}$"
        [ $UID -eq "0" ] && PROMPT="${RE}#"

        # Add the first part of the prompt: username,host, and time
        local PROMPT_PWD=""
        local PS1_T1="$BL.:[ $CY`whoami`@`hostname` $BL: $CY\t $BL:$CY "
        local ps_len=$(( ${#PS1_T1} - 12 * 6 + 6 + 4 ))
   #Len adjust for colors, time and var
        local PS1_T2=" $BL]:.\n\[\$smileyc\]\$smiley\[$RST\] "
        local startpos=""

        PROMPT_PWD="${PWD/#$HOME/~}"
        local overflow_prefix="..."
        local pwdlen=${#PROMPT_PWD}
        local maxpwdlen=$(( COLUMNS - ps_len ))
        # Sometimes COLUMNS isn't initiliased, if it isn't, fall back on 80
        [ $maxpwdlen -lt 0 ] && maxpwdlen=$(( 80 - ps_len ))

        if [ $pwdlen -gt $maxpwdlen ] ; then
                startpos=$(( $pwdlen - maxpwdlen + ${#overflow_prefix} ))
                PROMPT_PWD="${overflow_prefix}${PROMPT_PWD:$startpos:$maxpwdlen}"
        fi
        export PS1="${PS1_T1}${PROMPT_PWD}${PS1_T2}"
}
PROMPT_COMMAND=bash_prompt_cmd

Which produces:

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.:[ dedanna@dedanna.rocks.net : 13:07:32 : ~ ]:.
:)

It's just unfortunate that colors can't be shown in the forum's code tags.



Now, if I could just get the syntax right for gtkpacman to be fixed, I'd do real good. Have been unable to find the maintainer's page to report the bug on it.

[viking60]

Yeah I love that smiley. I use it too!

[dedanna1029]

It even does it in tty if one is logged into it as their own user. Haven't implemented this for root, so it doesn't do it there. Try it. Hit Ctrl+Alt+F2 ... log in as your user.

[dedanna1029]

Debating on changing red to purple. Now that, would be cool. My two fav colors.

[dedanna1029]

Debating on changing red to purple. Now that, would be cool. My two fav colors.

Giving it a shot now in Linux Mint 12.
The issue being that of course, there's no cope-git in the repos.

I'm not sure, but I don't think Linux Mint needed the cope-git?

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:( echo "My name is Ded's Tilda"
My name is Ded's Tilda
.:[ dedanna@dedanna : 13:24:48 : ~/Documents ]:.
:) echo "See my pretty prompt"
See my pretty prompt
:) echo $PROMPT
.:[ dedanna@dedanna : 13:25:17 : ~/Documents ]:.