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Scris de Cypress   
Thursday, 22 November 2007
#!/bin/bash
##########################################################################
# Title      :    workon - create xterms to work on a specified host
# Author     :    Heiner Steven < Aceasta adresa e-mail este protejata impotriva spamului, JavaScript trebuie activat pentru a putea vizualiza pagina. >
# Date       :    1995-10-11
# Requires   :    isxwindows
# Category   :    Desktop
# SCCS-Id.   :    @(#) workon    1.12 06/03/03
##########################################################################
# Description
#    o    The command $XTERM needs ot understand the option "-g" and "-T",
#    e.g. "-g 80x25 -T title"
##########################################################################

PN=`basename "$0"`            # Program name
VER='1.12'                # Version number

: ${XTERM:=xterm}
: ${XTERMOPTS=}

# We need a way to ping exactly one time (Linux "ping" needs -c option)
if [ -z "$PINGONCE" ]
then
    case `uname` in
    SunOS)    PINGONCE=ping;;
    Linux)    PINGONCE="ping -c 1";;
    *)    PINGONCE="ping -c 1";;    # Default
    esac
fi

#########################################################################
# CONFIGURATION SECTION
#
#           | XOFF
#       +---|-------------------+
#       |   |-----------PX      |
# YOFF -----1111111     2222222 |
#       |   1111111     2222222 |
#       |   1111111     2222222 |
#       |   1111111     2222222 |
#       |                       |
#       +-----------------------+

# The offsets may be used to provide a fixed left or top margin for
# all windows

XOFF=153
YOFF=0

# These offsets are used for the right windows (the do not include XOFF/YOFF)

PX=503                    # Offset from the left margin
PY=514                    # Offset from the top margin

# Two window sizes

DX=80;    DY=70                # Size of wins 1 and 2

# END CONFIGURATION SECTION
#########################################################################

X=`expr ${XOFF:=0} + ${PX:=0}`
Y=`expr ${YOFF:=0} + ${PY:=0}`

usage () {
    echo >&2 "$PN - work on remote host, $VER (stv '95)
usage: $PN [-c] [-l loginname] [host ...]
    or $PN [-c] login@host [login@host ...]
   -c:  check if host is alive (using ping(1))"
    exit 1
}

msg () {
    for i
    do echo "$PN: $i" >&2
    done
}

fatal () { msg "$@"; exit 1; }

PingHost=false
# Check arguments before setting them
getopt chl: "$@" > /dev/null 2>&1    || usage
set -- `getopt hl: "$@"`
while [ $# -gt 0 ]
do
    case "$1" in
        -c)    PingHost=true;;
    -l)    User="$2"; shift;;
    --)    shift; break;;
    -h)    usage;;
    -*)    usage;;
    *)    break;;            # first file name
    esac
    shift
done

isxwindows || fatal "use only with X Windows"

CurHost=`uname -n`
: ${User:=$USER}

[ $# -lt 1 ] && set -- $CurHost

if [ -z "$SSH_AGENT_PID" ]
then Rcmd=rlogin
else Rcmd=ssh
fi

# Give the user time to change to another virtual desktop
sleep 3

# For each host there will be two windows. We handle the following cases:
#  (1) local window
#  (2) remote window
# both cases with (a) current or (b) different user.
# We set the variables
#    o    "cmd" to the command to be run in the window (none, "login", or
#       "$Rcmd")
#    o    "geom_left", "geom_right" to the geometry for the left and right
#       window, respectively

for Host
do
    case "$Host" in
        *@*)
        User=`echo "$Host" | cut -d@ -f1`
        Host=`echo "$Host" | cut -d@ -f2`
        ;;
    esac

    OPTS="$XTERMOPTS -T ${User:+$User@}$Host"

    if [ "$Host" = "$CurHost" ]
    then                # Local work
    if [ "$User" = "${USER:-INVALID}" ]
    then                # (1a) Default user - no login
        cmd=
        geom_left="${DX}x${DY}+${XOFF}+${YOFF}"
        geom_right="${DX}x${DY}+${X}+${YOFF}"
    else                # (1b) User specified - login
        cmd="login \"$User\""
        geom_left="${DX}x${DY}+${XOFF}+${YOFF}"
        geom_right="${DX}x${DY}+${X}+${YOFF}"
    fi
    else                # Remote login
    if [ $PingHost = true ]
    then $PINGONCE "$Host" || continue
    fi
    cmd="$Rcmd ${User:+-l $User} \"$Host\""
    geom_left="${DX}x${DY}+${XOFF}+${YOFF}"
    geom_right="${DX}x${DY}+${X}+${YOFF}"
    fi

    if [ -n "$cmd" ]
    then
    eval $XTERM $OPTS -g $geom_left  '-e "$cmd"' &
    eval $XTERM $OPTS -g $geom_right '-e "$cmd"' &
    else
    eval $XTERM $OPTS -g $geom_left &
    eval $XTERM $OPTS -g $geom_right &
    fi

done

wait
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Copyright (C) 2007 Alain Georgette / Copyright (C) 2006 Frantisek Hliva. All rights reserved.
 

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Foloseste aceeasi partitie SWAP in Linux si Windows
Daca esti in lipsa de spatiu si doresti sa folosesti aceeasi partitie swap si in Linux si in Windows, poti sa faci urmatorul truc:
1. Formateaza partitia ca si partitie DOS si creaza fisierul SWAP Windows pe ea, dar nu rula inca sistemul de operare.
2. Booteaza in Linux si s alveaza partitia intr-un fisier. Presupunand ca partitia swap se afla pe /dev/hda5, vom face
dd if=/dev/hda5 of=/etc/dosswap
3. Comprima fisierul dosswap:
gzip -9 /etc/dosswap
4. Adauga urmatoarele in fisierul /etc/rc pentru a pregati si instala swap-ul in Linux. XXXXX este numarul de blocuri din partitia swap:
mkswap /dev/hda5 XXXXX
swapon -av   
5. Adauga partitia in /etc/fstab
 

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