Przydatne Skrypty na polskim forum

[fallow]

Zgodnie z proponowanym pomyslem to watek w ktorym zamieszczane beda skrypty ktore uznamy za przydatne. Wszystkie ustalenia , dyskusja mieszcza sie w TYM WATKU. Tu takze nalezy zglaszac nowe skrypty do dodania.

Jak zglosic i zamiescic skrypt ?
Skrypty sa przechowywane w tym watku , zamiescic skypt w watku ktory sluzy do dyskusji nad skryptami ( link wyzej ) , jesli uznamy ze skrypt nadaje sie do zamieszczenia wowczas zostanie on dodany do watku ktory obecnie czytasz czyli "Przydatne Skrypty na polskim forum" , pozniej zostanie dodany do niego link w pierwszym poscie w tym watku.

----------------LISTA----------------------------
Skrypt # 1
Opis : Pokazuje progress kompilacji pakietow via emerge
Autor : Gherald

Skrypt # 2
Opis : pokazuje niepotrzebne pliki w /etc/
Autor : Nelchael

Skrypt # 3
Opis : skypt sluzacy do latwej , przyjemnej zmiany io schedulera dla danego urzadzenia
Autor : Genn

Skrypt # 4
Opis: Skrypt służy do automatycznego synchronizowania komputera(zalecane raz na tydzień - chodzi głównie o obciążenie serwerów rsync)
Autor : Michael Panhorst , Oryginalny post

Skrypt # 5
Opis: Wyszukuje i wyświetla stare i potencjalnie niepotrzebne już pliki znajdujące się w distfiles
Autor : Konstantin Shaposhnikov

[fallow]

Opis : Pokazuje progress kompilacji pakietow via emerge
Autor : Gherald

Code: Select all

#!/bin/bash 
#eprogress v0.0.1, July 13, 2004 

#When given a package name this scipt is will track the progress of an ebuild by counting the number of .c and .cpp files in the portage temp directory and comparing it to the number of .o files that have been compiled so far. 

#When run without arguements it's useful for locating previous failed or interrupted ebuilds so they can be attempted again or deleted manually to free space. 

cd /var/tmp/portage 
printf "%40s%8s%8s%8s%9s" "PACKAGE" "TOTAL" "LEFT" "DONE" "PERCENT"; echo 
for i in $1*; do 
   A=`find $i/ -iname "*.c*" | wc -l` 
   if test $A -eq 0; then continue; fi 
   B=`find $i/ -iname "*.o*" | wc -l` 
   C=$[$A-$B] 
   D=`expr $B \* 100 / $A` 
   if test $D -gt 100; then D="??"; fi 
   printf "%40s%8s%8s%8s%7s" "$i" "$A" "$C" "$B" "$D"; echo 
done

Proponuje zamienic przedostatnia linijke

Code: Select all

printf "%40s%8s%8s%8s%7s" "$i" "$A" "$C" "$B" "$D"; echo

na nastepujaca

Code: Select all

printf "%40s%8s%8s%8s%7s" "$i" "$A" "$C" "$B" "$D"; echo; break

co pomaga pozbyc sie smieci na koncu skryptu, np.:
find: server.crt/: Nie jest katalogiem
find: server.key/: Nie jest katalogiem

[nelchael]

Opis: pokazuje niepotrzebne pliki w /etc/
Autor: Nelchael

Code: Select all

#!/bin/bash

BASH_COLOR_RESET="\e[0m"
BASH_COLOR_GREEN="\e[01;32m"
BASH_COLOR_RED="\e[01;31m"

FILES_OK=0
FILES_BAD=0
FILES_TOTAL=0

for i in `find /etc -type f | sort`; do
	echo -n "Checking \"${i}\"... "
	# Check
	jest="`grep -Hr \"${i}\" /var/db/pkg/* | head -n 1 | cut -d ':' -f 1 | sed -e 's,/CONTENTS,,g' -e 's,/var/db/pkg/,,g'`"
	FILES_TOTAL=$(($FILES_TOTAL + 1))
	if [ "x${jest}" = "x" ]; then
		echo -en "${BASH_COLOR_RED}NOT FOUND${BASH_COLOR_RESET}"
		FILES_BAD=$(($FILES_BAD + 1))
	else
		echo -en "${BASH_COLOR_GREEN}ok${BASH_COLOR_RESET} (${jest})"
		FILES_OK=$(($FILES_OK + 1))
	fi
	echo
done

echo "Files: ${FILES_TOTAL} Valid: ${FILES_OK} Unknown: ${FILES_BAD}"

[fallow]

skypt sluzacy do latwej , przyjemnej zmiany io schedulera dla danego urzadzenia
Autor : Genn

Code: Select all

#!/bin/bash

###***Authored by Genn***###
##E-Mail: TheWindRider@myrealbox.com

#Last Update: 1/18/05

#This script was created to change the currently used scheduler
#under the vivid-sources kernel.  
#(http://forums.gentoo.org/viewtopic.php?p=1337010, maintained by fallow and troll)
#There are probably other kernels that could use this script as
#well, but I'm not aware of them.

#This script must be executable.  If it does not work 
#'chmod 700 *this_script*' should do it.

#You can supply one optional arguement with this script.
#'script_name block-device' will run the script with the
#intend to interactively change the scheduler on the
#block device you specify.  The block device is just the 
#last portion of the device address without slashes.  
#IE, if you wanted to adjust the schedular on /dev/hda, 
#you would run 'this_script hda' and follow the on-screen 
#instructions.

#Now, I say the arguement is optional because you are 
#requred to set the DEFAULT_DRIVE variable to a valid block 
#device.  So, if you do not supply the arguement, the script 
#will use that block-device.  The variable is set by the 
#same rules that the arguement is supplied by; just use the 
#last portion of the address with no slashes.

#And for those of you wondering where the variable is,

DEFAULT_DRIVE=hda

#Now you've done everything you need to, go run the script,
#and ignore everything from here down.
##########################################################

#Verification of a valid default block device choice.
if [ -z `ls /sys/block | grep $DEFAULT_DRIVE` ]
  then
    echo "You chose a non-valid block device as default."
    echo "/dev/$DEFAULT_DRIVE does not exist."
    echo "Please change the variable DEFAULT_DRIVE in the script."
    exit
fi

#Verification of root level access
ROOT_UID=0
ERR_NOTROOT=67

if [ "$UID" != "$ROOT_UID" ]
then
  echo "You must be root to run this script."
  exit $ERR_NOTROOT
fi

#If an arguement is supplied this makes sure it is used.
#Or if none is supplied it uses the default choice.
if [ -n "$1" ]
then
  if [ -n `ls /sys/block | grep $1` ]
  then
    echo "Now using /dev/$1 for block device."
    DRIVE=$1

  else
    echo "You chose a non-valid block device."
    echo "/dev/$1 does not exist."
    exit 1

  fi

else 
  echo "No arguement supplied."
  echo "Defaulting to /dev/${DEFAULT_DRIVE} for block device."
  DRIVE=${DEFAULT_DRIVE}

fi

#Schedular file location
SCHEDLOC=/sys/block/${DRIVE}/queue/scheduler

#Verification of valid scheduler location
if [ `[ -f ${SCHEDLOC} ]` ! -a `[ -w ${SCHEDLOC} ]` ]
then
  echo "Uh oh, either $SCHEDLOC is not a file, or you do not "
  echo "have write access to it.  I would suggest you verify" 
  echo "that the location listed above is correct and that the "
  echo "value in the script did not get altered somewhow.  The "
  echo "standard location is: "
  echo "/sys/block/{some_block_device}/queue/scheduler.  If it "
  echo "is valid, try echoing something by hand to "
  echo "$SCHEDLOC.  If you're "
  echo "sure your using the right kernel, and none of that works, "
  echo "make a post in the vivid-sources thread.  On the other "
  echo "hand, if echoing by hand does work, send me an e-mail as "
  echo "you just discovered a bug."
  exit 1

fi

#Identification of different available schedulers.
SCHED1=`cat ${SCHEDLOC} | gawk '{print $1}'`
SCHED2=`cat ${SCHEDLOC} | gawk '{print $2}'`
SCHED3=`cat ${SCHEDLOC} | gawk '{print $3}'`
SCHED4=`cat ${SCHEDLOC} | gawk '{print $4}'`  

#User Interface portion
echo "List of available schedulers"
echo "The bracketed choice is the one currectly in use."
echo "Selecting this one does nothing."

echo "1 -  ${SCHED1}"
echo "2 -  ${SCHED2}"
echo "3 -  ${SCHED3}"
echo "4 -  ${SCHED4}"

echo " "
echo "Please type the number corresponding the scheduler you wish to use."

#This applies the selected change
read CHOICE
case ${CHOICE} in
1) 
echo "$SCHED1" > $SCHEDLOC
NEWSCHED=${SCHED1}
;;
2) 
echo "$SCHED2" > $SCHEDLOC
NEWSCHED=${SCHED2}
;;
3) 
echo "$SCHED3" > $SCHEDLOC
NEWSCHED=${SCHED3}
;;
4) 
echo "$SCHED4" > $SCHEDLOC
NEWSCHED=${SCHED4} 
;;
*) 
echo "You must input a numerical value corresponding to one of the not-in-use schedulers."
exit 1   
;;
esac

#Error catching if the current scheduler is chosen.
VALIDATE=`echo $NEWSCHED | grep -F '['`
if [ "${VALIDATE}" != "" ]
then
echo "You just chose the scheduler currently in use."
exit 1
fi

echo " "

#Announcement of what schedular was selected for which drive.
echo "Schedular changed to $NEWSCHED on /dev/${DRIVE}"
exit 0

[fallow]

Gentoo Linux Cron Update
Autor: Michael Panhorst
Oryginalny post: http://forums.gentoo.org/viewtopic.php? ... 52#1304452

Wymagania: mailx, esearch, gentoolkit
Sposób instalacji: Najprostszy - umieszczenie skryptu w katalogu /etc/cron.weekly, inny - umieszczenie w crontabie.

Opis: Skrypt służy do automatycznego synchronizowania komputera(zalecane raz na tydzień - chodzi głównie o obciążenie serwerów rsync)

Co robi skrypt:
1. emerge sync
2. fixpackages, jeśli trzeba
3. Sprawdzenie GLSA
4. Jeśli wystąpiły błędy przy emerge sync albo są nowe GLSA, skrypt wysyła email z informacją
5. Sprawdzenie czy są nowe wersje (emerge system or emerge world)
6. Paczkowanie nowych wersji jeśli spełnione są zależności(emerge -B)
7. Wysłanie emaila (jeśli są pakiety do zaktualizowania), a także informacji w jaki sposób tego dokonać (używając juz skompilowanych paczek - emerge -avK)

Code: Select all

#!/bin/bash 
# 
# 
# glcu - gentoo linux cron update 
# script for keeping your Gentoo linux up to date 
# 
# Version 0.65 - written by Michael Panhorst - Michael [at] untiefe [dot] de 
# 
# put this script in the /etc/cron.weekly directory 
# You need to have mailx, esearch and gentoolkit emerged 


# Set your eMail address first: 
EMAILADRESS=root 

# set if you want to test (and build) emerge 'system' or 'world' 
UPDATE=system 


################################################################ 
# You shouldn't need to change anything below this line 


PKGDIR="/usr/portage/packages" 
source /etc/make.conf  # in case you set PKGDIR different 
SUBJECT="glcu: New ebuilds for emerge $UPDATE on $HOSTNAME" 
FS="" 
EXTRA="" 

# 1. emerge sync ############## (sync first) #################### 

emerge sync 2>/tmp/emergesync.$$ 

# and run fixpackages (if needed) 

grep "Skipping packages. Run 'fixpackages' or set it in FEATURES" /tmp/emergesync.$$ 

if [ $? == 0 ] 
    then 
    echo "" >>/tmp/ecdep.$$ 
    echo "Running fixpackages" >>/tmp/ecdep.$$ 
    echo "" >>/tmp/ecdep.$$ 
    fixpackages 2>>/tmp/ecdep.$$ 
    echo "" >>/tmp/ecdep.$$ 
fi 

# 2. update database for esearch ################################ 

eupdatedb 2>>/tmp/emergesync.$$ 

# 3. glsa-check - check for security updates #################### 

glsa-check -l -n|grep " \[N\] " >/tmp/eupdate.$$ 
if [ $? == 0 ] 
    then 
    echo "" >>/tmp/emergesync.$$ 
    echo "----------------------------------------------------------------------" >>/tmp/emergesync.$$ 
    echo "Important Security updates for $HOSTNAME:" >>/tmp/emergesync.$$ 
    echo "" >>/tmp/emergesync.$$ 
    cat /tmp/eupdate.$$ >> /tmp/emergesync.$$ 
    echo "" >>/tmp/emergesync.$$ 
    echo "" >>/tmp/emergesync.$$ 
    echo "*** Run 'glsa-check --fix new' to auto-apply all security updates" >>/tmp/emergesync.$$ 
    echo "         ====================" >>/tmp/emergesync.$$ 
    echo "" >>/tmp/emergesync.$$ 
    echo "----------------------------------------------------------------------" >>/tmp/emergesync.$$ 

    FS="- SECURITY UPDATES!" 
fi 

# only send a mail if errors ocurred 
if [ -s /tmp/emergesync.$$ ] 
then 
    if [ -s /tmp/ecdep.$$ ] 
   then 
   cat /tmp/ecdep.$$ >> /tmp/emergesync.$$ 
    fi 
   cat /tmp/emergesync.$$ | mail -s "glcu($HOSTNAME): emerge sync $FS" $EMAILADRESS 
fi 



# 4. emerge -pv system/world (check for needed/new ebuilds) ### 

emerge --pretend --deep $UPDATE > /tmp/eupdate.$$ 2>&1 

# prebuild (emerge --buildpkgonly) all needed packages 

grep ebuild /tmp/eupdate.$$ 

if [ $? == 0 ] 
    then 
    echo "- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -" >> /tmp/ecdep.$$ 
    echo "List of new Packages:" > /tmp/ecdep.$$ 
    echo "---------------------" >> /tmp/ecdep.$$ 
    grep ebuild /tmp/eupdate.$$ >> /tmp/ecdep.$$ 
    echo "---------------------------------------------------------------------" >> /tmp/ecdep.$$ 

    for package in `cat /tmp/eupdate.$$ | grep ebuild | cut -f 2- -d "/" | cut -f 1 -d " "` ; 
      do 
      if [ ! -f $PKGDIR/All/$package.tbz2 ] 
     then 
     echo "" >> /tmp/ecdep.$$ 
     echo "Building binary package for $package :" >> /tmp/ecdep.$$ 

     emerge --pretend --buildpkgonly --oneshot =$package > /tmp/eupdate.$$ 
     if [ ` grep -c ebuild /tmp/eupdate.$$ ` == 1 ] 
         then 
         nice -n +19 emerge --buildpkgonly --oneshot =$package 2>> /tmp/ecdep.$$ 
         if [ $? == 0 ] 
        then 
        PACKAGES="$PACKAGES =$package" 
        else 
        echo "" >> /tmp/ecdep.$$ 
        echo " ***  Error while building $package!" >> /tmp/ecdep.$$ 
        SUBJECT="glcu: DEPENDENCY PROBLEM, COULDN'T PREBUILD ALL PACKAGES ON $HOSTNAME" 
        DEP=1 
         fi 

         else 
         echo " *** Dependencies for $package not met." >> /tmp/ecdep.$$ 
         echo " *** Cannot prebuilt $package!" >> /tmp/ecdep.$$ 
         SUBJECT="glcu: DEPENDENCY PROBLEM, COULDN'T PREBUILD ALL PACKAGES ON $HOSTNAME" 
         DEP=1 
     fi 

      fi 
    done 

    echo "New packages for 'emerge $UPDATE'!" > /tmp/glcu.$$ 
    echo "                  =============" >> /tmp/glcu.$$ 
    echo "" >> /tmp/glcu.$$ 

    if [ -n "$PACKAGES" ] 
   then 
   echo "To update your gentoo linux, execute:" >> /tmp/glcu.$$ 
   echo "" >> /tmp/glcu.$$ 
   echo "  emerge -avK $PACKAGES" >> /tmp/glcu.$$ 
   echo "" >> /tmp/glcu.$$ 
   EXTRA=further 
   SEND=1 
    fi 

    if [ $DEP ] 
   then 
   echo "check for $EXTRA packages with:" >> /tmp/glcu.$$ 
   echo "" >> /tmp/glcu.$$ 
   echo "  emerge -av $UPDATE" >> /tmp/glcu.$$ 
   echo "" >> /tmp/glcu.$$ 
   SEND=1 
    fi 


    cat /tmp/ecdep.$$ >> /tmp/glcu.$$ 

    # send mail, how to update the system 

    if [ $SEND ] 
   then 
   cat /tmp/glcu.$$ | mail -s "$SUBJECT" $EMAILADRESS 
    fi 

# rm all used files 

    rm /tmp/glcu.$$ 

fi 

rm /tmp/emergesync.$$ /tmp/eupdate.$$ /tmp/ecdep.$$

[fallow]

Find old distfiles
Autor: Konstantin Shaposhnikov
Opis: Wyszukuje i wyświetla stare i potencjalnie niepotrzebne już pliki znajdujące się w distfiles

Code: Select all

#!/bin/bash

function create_portage_list() {
  find $1 -path '*files/digest-*' -type f | xargs -n1 awk '{print $3}' > $2
}

echo "Finding portage distfiles ... "
create_portage_list /usr/portage /tmp/portage-distfiles1

echo "Finding port overlay distfiles ... "
create_portage_list `portageq portdir_overlay` /tmp/portage-distfiles2

echo "Sorting list of distfiles ... "
cat /tmp/portage-distfiles{1,2} | sort > /tmp/portage-distfiles
rm /tmp/portage-distfiles{1,2}

echo "Finding local distfiles ... "
find /usr/portage/distfiles/ -type f | xargs -n1 basename | sort > /tmp/local-distfiles

comm -1 -3 /tmp/portage-distfiles /tmp/local-distfiles