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lisa
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PostPosted: Tue Jul 29, 2003 12:57 am    Post subject: Reply with quote

Here's mine...

Code:

alias nano='nano -w'
alias rm='rm -i'
alias mv='mv -iv'
alias cp='cp -iv'
alias ls='ls --color=auto'
alias rndc='rndc -k /chroot/dns/etc/bind/rndc.key'
export PS1='\[\033[01;32m\]\u@\h \[\033[01;34m\]\W \$ \[\033[00m\]'

case $TERM in
        xterm*|rxvt|eterm)
                PROMPT_COMMAND='echo -ne "\033]0;${USER}@${HOSTNAME%%.*}:${PWD/$HOME/~}\007"'
                ;;
        screen)
                PROMPT_COMMAND='echo -ne "\033_${USER}@${HOSTNAME%%.*}:${PWD/$HOME/~}\033\\"'
                ;;
esac

:)

This along with bash-completion makes my life easier.
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Ivion
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Location: Amsterdam

PostPosted: Tue Jul 29, 2003 2:21 am    Post subject: Reply with quote

thadk wrote:
No, I'm pretty sure that a backgrounded(&) process dies when it's parent (the xterm/ssh session) does. I'm trying to figure out how to make it so the parent is pid 1 (at least thats the definition of a daemon I found)

With kde I can sort of do what I want with `kdeinit`


Well, 1 option is screen, with which you can 'detach' processes and they will keep running even if you log out. And you also have the ability to 'retach' processes. :)

Another option is:
Code:

(program &)

This 'disowns' a process, this actually starts the program in a subshell, and puts the program inside that subshell into the background. ^_^
I'm not sure if this will work with what you want to accomplish, but I'm sure screen will. :D
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isomer
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PostPosted: Tue Jul 29, 2003 3:01 am    Post subject: Reply with quote

thadk wrote:
No, I'm pretty sure that a backgrounded(&) process dies when it's parent (the xterm/ssh session) does. I'm trying to figure out how to make it so the parent is pid 1 (at least thats the definition of a daemon I found)


Try this:

Code:
$ nohup /path/to/program


The program you start won't be killed by the HUP signal that way, and will live on even if its xterm is closed.

-isomer
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thadk
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PostPosted: Tue Jul 29, 2003 4:02 am    Post subject: Thanks!! Reply with quote

I think I recall reading bout that somewhere now but it got lost.
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viperlin
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PostPosted: Tue Jul 29, 2003 10:42 am    Post subject: Reply with quote

in an aterm/xterm/eterm and others backgrounding something will stay after you close it if you close it by pressing CTRL-D instead of using the window manager exit button, or at least it does for me.
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Bellrang QT
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PostPosted: Wed Jul 30, 2003 2:20 am    Post subject: Reply with quote

nico-- wrote:
If you leave the xterm open you still get output from the program... you have to redirect the output to /dev/null but i can't remember how to do that, heh.

Code:
mpg123 mylegallyrippedmp3file.mp3 > /dev/null &


I wrote:
Probably another dumb question...

Is there a way to control what shows up in the titlebar of Putty? When I emerge (using an ssh session with Putty), the titlebar is changed. When emerge is done, the titlebar just displayed "xterm".

When I ssh into my RedHat box, it shows user@machine... that's kinda nice.

Any ideas?

Any ideas about this yet?
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Kalin
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PostPosted: Sun Aug 03, 2003 11:51 am    Post subject: Reply with quote

Just saw this thread, so here are my aliases:

Code:

alias ll='ls -l --color=always'

alias emerge='emerge -v'
alias merge='ACCEPT_KEYWORDS=~x86 emerge'
alias unmerge='emerge unmerge'

alias nano='nano -w'

# Commands I cannot remember are stored here
alias h='less /usr/local/doc/commands'
# No more alsa drivers to fill the display :-)
alias llmod='lsmod |grep -v snd'

# Don't forget export GREP_COLOR="1;32" for green :-)
alias grep='grep --color=auto'


All this goes to /etc/profile.d/alias!
I have
Code:
 [ -f /etc/profile.d/alias ] && source /etc/profile.d/alias
in /etc/profile to load it for every user.
[/code]
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Guezz-Who
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PostPosted: Sun Aug 03, 2003 5:37 pm    Post subject: My humble little alias/options/completion collection.. :) Reply with quote

I got a little inspired from ebrostig's tab completions so I made some more..
Notice the 'service' function.. you can type 'service pcm[tab]' and it will autocomplete it to pcmcia.. 'service pcmcia z[tab]' will autocomplete to 'service pcmcia zap'

My list of aliases/options/completions:

Code:
#!/bin/bash

#some vars:
GENTOO="1" #set to 1 on gentoo (i have multiple computers with different distros)

#alias:
alias ls="ls --color=auto"
alias lsd="ls --color -d */" #only dirs
alias rm="rm -i"
alias mv="mv -iv"
alias cp="cp -iv"
alias grep="grep --color=auto"
export GREP_COLOR="1;32" #green color grep..
alias lftp="lftp -d" #show some usefull debug info in lftp
alias recal="history | grep"
alias h="history"
alias cman="PAGER=\"cat\" man" #cat a man page..
alias psg="ps -ef | grep -v grep | grep" # ps grep
     
alias gsu="gnomesu -c"
           
alias vi="vim -o"
alias vim="vim -o"
alias vimdiff="vimdiff -X"
alias xdiff="gvimdiff"
alias le="less"
alias mo="more"
alias mp="mplayer"

#shows what ip you have on the internet (if there's no proxys that is..
alias whatip="wget -O - http://www.whatismyip.com 2> /dev/null | grep \"<h1>\" | cut -d \" \" -f 4"

#gentoo stuff (emerge aliases and service function):
if [ $GENTOO -eq 1 ] ; then
   alias emerge="emerge -v"
   alias nemerge="nice -n 5 emerge"
   alias unmerge="emerge unmerge"
   alias aemerge="ACCEPT_KEYWORDS=\"~x86\" emerge"

   function service {  # run services from /etc/init.d/
      if [ -z $1 ] ; then
         ls /etc/init.d
      else
         /etc/init.d/$1 $2
      fi
   }

   function _listservices { # get tab completion for services and options
      local cur
      local opt
      COMPREPLY=()
      opt=${COMP_WORDS[2]}
      cur=${COMP_WORDS[COMP_CWORD]}
      if [ -z $opt ] ; then
         COMPREPLY=( $( ls -1 /etc/init.d/ | grep ^$cur ) )
      else
         COMPREPLY=( $( compgen -W 'start stop restart pause zap status' | grep ^$cur) )
      fi
   }
   complete -F _listservices service
fi

#Shell options:
shopt -s cdspell #error correction
shopt -s cdable_vars
shopt -s sourcepath
shopt -s no_empty_cmd_completion
shopt -s histappend histreedit
shopt -s extglob
shopt -s extglob

#tab completion stuff:
complete -A hostname   rsh rcp telnet rlogin lftp ftp ping disk ssh
complete -A command    nohup exec eval trace strace gdb
complete -A command    command type which
complete -A export     printenv
complete -A variable   export local readonly unset
complete -A enabled    builtin
complete -A alias      alias unalias
complete -A function   function
complete -A user       su mail finger
complete -A helptopic  help   # currently same as builtins
complete -A shopt      shopt
complete -A stopped -P '%' bg
complete -A job -P '%'     fg jobs disown

complete -A directory  mkdir rmdir

complete -f -X '!*.gz'   gunzip zcat zmore
complete -f -X '!*.bz2' bunzip2
complete -f -X '!*.zip' unzip
complete -f -X '!*.ps'  gs ghostview gv
complete -f -X '!*.pdf' xpdf
complete -f -X '!*.+(gif|jpg|jpeg|GIF|JPG|bmp)' xv gimp gqview

complete -A signal kill -P '%'

#other completions:

function _umount () {
   local cur
   COMPREPLY=()
   cur=${COMP_WORDS[COMP_CWORD]}
   COMPREPLY=( $( mount | cut -d' ' -f 3 | grep ^$cur) )
   return 0
}

function _rmmod () {
   local cur
   COMPREPLY=()
   cur=${COMP_WORDS[COMP_CWORD]}
   COMPREPLY=( $( lsmod | cut -d' ' -f 1 | grep ^$cur) )
}

function _killall () { # ps -A cut program-names if they are too long.. :(
   local cur
   cur=${COMP_WORDS[COMP_CWORD]}
   COMPREPLY=( $( ps -A | awk '{ print $4 }' | sort | uniq | grep ^$cur) )
}

complete -F _umount umount
complete -F _rmmod rmmod
complete -F _killall killall

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Sledgy
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PostPosted: Thu Aug 07, 2003 8:48 am    Post subject: Reply with quote

written and/or collected over the years

Code:
 Add to the path variable named by $1 the component $2.  $3 must be
# "append" or "prepend" to indicate where the component is added.
addpath () {
    eval value=\"\$$1\"
    case "$value" in
        *:$2:*|*:$2|$2:*|$2)
            result="$value"
            ;;
        "")
            export $1
            result="$2"
            ;;
        *)
            case "$3" in
                p*)
                    result="$2:${value}"
                    ;;
                *)
                    result="${value}:$2"
                    ;;
            esac
    esac
    eval $1=$result
    unset result value
}

# convenience routine which appends a string to a path.
append () {
    addpath "$1" "$2" append
}

# convenience routine which prepends a string to a path.
prepend () {
  addpath "$1" "$2" prepend
}

allows clean scripts like:
Code:

...
#################################
#
#  java
#
#################################
setenv JAVA_HOME /java/j2sdk

append PATH ${JAVA_HOME}/bin

setenv CLASSPATH .
append CLASSPATH $JAVA_HOME
append CLASSPATH /java/jdom/lib/xerces.jar
append CLASSPATH /java/jdom/build/jdom.jar
...


Code:
setenv () {
  eval $1=$2
  export $1
}

(guess where i came from ;))



Code:
# tar-copy

tcp () {
  if [ $# != 2 ]
  then
    echo "usage: tcp [sourcefile|sourcedirectory] targetdirectory"
  else
    if [ ! -e $1 ]
    then
      echo "where's ${1}?"
    else
      if [ ! -d $2 ]
      then
        echo "$2 doesn't exist"
      else
        echo "/bin/tar -cvf - $1 | (cd $2; /bin/tar -xpf -)"
        /bin/tar -cvf - $1 | (cd $2; /bin/tar -xpf -)
      fi
    fi
  fi
}


Code:
# mkdir + cd

mkcd () {
  if [ $# != 1 ]
  then
    echo "usage: mcd directory"
  else
    if [ ! -d $1 ]
    then
      if [ -e $1 ]
      then
        echo "$1 exists but isn't a directory"
      else
        mkdir -p $1
        cd $1
      fi
    else
      cd $1
    fi
  fi
}
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PostPosted: Fri Aug 08, 2003 8:59 am    Post subject: Reply with quote

Woaw... The Guezz-Who one is a bit complicated for me...
Not sure I understand how everything works... Not even the half actually!

:lol:
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ArsDangor
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Posts: 477

PostPosted: Wed Aug 13, 2003 9:33 pm    Post subject: Reply with quote

I've learned a lot from this thread :D

This is my particular version of Sledgy's mkcd. It's called xmd for a DOS utility that made the same.
It also supports a task I find very repetitive: moving some file to a directory that might not exist yet.
Code:
xmd () {

    if (($# > 2)) || (($# < 1))
    then
        echo "Uso: xmd directorio_nuevo [fichero de destino]"
    else
        if [ ! -d $1 ]
        then
            mkdir $1
            if (($# == 2)) && [ -e $2 ]
                then
                mv $2 $1
            fi
            cd $1
        else
            echo "El nuevo directorio ya existe o es un fichero regular."
        fi
    fi
}

All the ifs avoid annoying error messages from mv, cd or mkdir. The messages are in Spanish. I hope the function is simple enough not no need them translated. ;)
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PostPosted: Mon Aug 18, 2003 12:16 am    Post subject: Reply with quote

My .bashrc prompt can be found here: https://forums.gentoo.org/viewtopic.php?t=75940
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PostPosted: Mon Aug 18, 2003 9:16 am    Post subject: Reply with quote

this might of been posted, but its so great i will post it again if it has :P

easy way to logout some people may not know about..

control-d :P
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viperlin
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PostPosted: Mon Aug 18, 2003 10:26 am    Post subject: Reply with quote

control-s to lock up an xterm so you cannot use it........ not usefull but i keep accidnetally doing it on my new keyboard instead of control-d, just lettin u know.....
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kitano
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PostPosted: Mon Aug 18, 2003 10:41 am    Post subject: Reply with quote

not completely true about the control-s thingie.

yes: it locks up your xterm/eterm

no: its not a cheap screenlocker

problem: control-s is something like sleep. pressing control-w rewakens the console executing _all_ command typed in inbetween (i.d. while sleeping)

can be fatal...

don't know what its good for, anyway
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PostPosted: Mon Aug 18, 2003 10:43 am    Post subject: Reply with quote

nobody ever using the control-r combination?

read alot about the history command and i thought ctrl-r goes hand in hand with it...

but now that i didn't really see it here, i thought maybe i should post it.

after pressing ctrl-r, try typing the first few letters of the command which should be in your history. voila, here we go.
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PostPosted: Sun Aug 24, 2003 12:18 am    Post subject: Reply with quote

actually this was posted thrice already in this thread:

once one page two by sa
another time on page two by nephros
and yet another time, but this time on page 3 by jleidigh

lol.

but i won't blame anyone, since i love using it myself.
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PostPosted: Mon Aug 25, 2003 3:24 am    Post subject: just wanted to say... Reply with quote

gentoo forums keeps me up all nights with all the info everywhere... this thread is REALLY filled with good tips and tricks.
Thank you guys for making it easy to learn more about gentoo.
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Ari Rahikkala
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PostPosted: Mon Aug 25, 2003 4:27 am    Post subject: Reply with quote

kitano wrote:

problem: control-s is something like sleep. pressing control-w rewakens the console executing _all_ command typed in inbetween (i.d. while sleeping)


At least on my system, it's ctrl-q, not ctrl-w... and I usually use scroll lock to cause what at least seems to be the same effect anyway.
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PostPosted: Mon Aug 25, 2003 4:32 am    Post subject: Reply with quote

Ari Rahikkala wrote:
ctrl-q


I owe you a coke. I keep forgetting what the turn-off-scroll-lock command is. :-P

-- Curious
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PostPosted: Wed Aug 27, 2003 10:00 pm    Post subject: Color, Pathes and problems Reply with quote

I changes ls to ls --color myself, but could anyone explain to me, why it somtimes works, and sometimes doesn't work (for example it's different when I "su") and sometimes the path variable is correct, buth sometimes it is not especially "/usr/local/sbin/" is oftentimes not found. Is there a list, which programs execute which files?

And the last thing that is annoying is that the keyboard rate is set to slow even if I append kbdrate to the startup programs, I have to run it manually everytime so I thought about putting it in .bashrc where it doesn't belong
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PostPosted: Wed Aug 27, 2003 10:50 pm    Post subject: Re: Color, Pathes and problems Reply with quote

byns wrote:
I changes ls to ls --color myself, but could anyone explain to me, why it somtimes works, and sometimes doesn't work (for example it's different when I "su") and sometimes the path variable is correct, buth sometimes it is not especially "/usr/local/sbin/" is oftentimes not found. Is there a list, which programs execute which files?

And the last thing that is annoying is that the keyboard rate is set to slow even if I append kbdrate to the startup programs, I have to run it manually everytime so I thought about putting it in .bashrc where it doesn't belong


You could append:
Code:
source /etc/profile
to your ~/.bashrc file
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PostPosted: Thu Aug 28, 2003 4:55 am    Post subject: Reply with quote

balk wrote:
How often I press '/' in any other program when trying to search for a word! Should be implemented in every browser too.


Yes, I find this very handy in Mozilla. I forget when it was introduced, but it makes searching for keywords very easy.
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PostPosted: Thu Aug 28, 2003 4:58 am    Post subject: Reply with quote

Brandy wrote:
hmm... bad spelling. No problem:
Code:
^sr^ser
useradd -m -c "Brandy Westcott" brandy -g users -G wheel,portage -s /bin/bash

^string1^string2 is really just the same as !!:s/string1/string2


THAT is a mighty useful trick. Thanks! Got any more of those slightly obscure but very handy techniques?
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PostPosted: Thu Aug 28, 2003 5:22 am    Post subject: Reply with quote

kitano wrote:
not completely true about the control-s thingie.

yes: it locks up your xterm/eterm

no: its not a cheap screenlocker

problem: control-s is something like sleep. pressing control-w rewakens the console executing _all_ command typed in inbetween (i.d. while sleeping)

can be fatal...

don't know what its good for, anyway


Ctrl-S is the XOFF command. It disables flow control to the TTY which effectively means the controlling terminal will stop accepting output from the child process(es). It will still accept input however, you just won't see it echoed on the terminal. Any child process (or thread) that tries to write normally to the terminal will block.

Ctrl-Q is the XON command - it reverses XOFF and resumes normal behaviour.

Ctrl-S is extremely useful once you realise what it does. For example, you're downloading a file with wget and you want to pause it. Hit ctrl-s to pause, ctrl-q to resume. As long as wget (or any other process) is constantly writing to the terminal, it will block.

Note that XOFF is not actually pausing the process, it is merely blocking stdout (the internals are a bit more complicated, but I think that's enough to get across the gist of this feature).
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