Useful listing of days in a month to populate directories or run scripts for backing up getting the correct dates of days in a month and year.
YEAR=2020
MONTH=2
for DAY in $(DAYS=`cal $MONTH $YEAR | awk 'NF {DAYS = $NF}; END {print DAYS}'` && seq -f '%02G' $DAYS) ;do
DATE="$YEAR-$MONTH-$DAY"
echo $DATE
done
nJoy 😉
Inside your incrontabs, you must leave *only* 1 space between the <path> <mask> <cmd>. If you leave 2 or more spaces, then the 2nd (and more) spaces will be considered part of the <mask> or <cmd> and it will fail… I was leaving 2 spaces between <mask> and <cmd>, and incron did not work and in /var/log/syslog there were these messages
incrond[27693]: cannot exec process: No such file or directory
This was because of having 2 spaces… when I corrected to only 1 space, it began working correctly. Keep it in mind, so you dont suffer as much as I did to find it out 
After editing with “incrontab -e”, check that “incrontab -l” shows the rules. If it does not show some rule, then that is because that rule has some error and was not recognized.
To debug what is happening behind the curtains, its usefull to have a “tail -f /var/log/syslog” on another terminal…
Quoted from https://zipizap.wordpress.com/2013/11/15/incron/
Very useful thanks !
😉 nJoy
Hi,
Ubuntu does not carry chkconfig any more ..
besides the standard
update-rc.d apache2 defaults
or
update-rc.d apache2 remove
There is a cool tool called : sysv-rc-conf.
This tool can be installed using :
sudo apt-get install sysv-rc-conf
On its own the command opens a cool ncurses interface like this :
It can Also be used in scripts as :
sysv-rc-conf atd <on or off> and --levels;
man sysv-rc-conf
Will give you some love..
nJoy 😉
This script requires genuine cp -al capable gnu and rsync commands together with a hardlink capable FS + OS.
#!/bin/bash
[ $# -ne 2 ] && echo "Incorrect usage : $0 <source path> <target path>" && exit 128 ;
SOURCEFOLDER=$1
TARGETFOLDER=$2
SF_LEN=${#SOURCEFOLDER}-1
TF_LEN=${#TARGETFOLDER}-1
#echo "Last character in source folder is ${SOURCEFOLDER:SF_LEN}"
if [ "${SOURCEFOLDER:SF_LEN}" != "/" ] ; then
echo "Adding trailing slash"
SOURCEFOLDER=$SOURCEFOLDER"/"
fi
#echo "Last character in target folder is ${TARGETFOLDER:TF_LEN}"
if [ "${TARGETFOLDER:TF_LEN}" != "/" ] ; then
echo "Adding trailing slash"
TARGETFOLDER=$TARGETFOLDER"/"
fi
echo $SOURCEFOLDER
echo $TARGETFOLDER
LOCKFILE=/tmp/`echo $0 $SOURCEFOLDER $TARGETFOLDER | sed "s/[^[:alnum:]]/_/g"`.lck
echo "Lockfile : $LOCKFILE"
[ ! -d $SOURCEFOLDER ] && echo "Source does not exist !! $SOURCEFOLDER exitting with error" && exit 1;
TIMESTAMP=$(date --utc +%Y%m%d%H%M )
#echo $TIMESTAMP
if [ ! -d $TARGETFOLDER ]; then
mkdir $TARGETFOLDER
rsync -av --delete $SOURCEFOLDER $TARGETFOLDER/$TIMESTAMP/
else
[ -d $TARGETFOLDER/$TIMESTAMP/ ] && echo "Folder already there !! Leaving.. " && exit 0;
LASTBACKUP=$(ls $TARGETFOLDER | sort -rn | head -1)
echo "Link copying $TARGETFOLDER/$LASTBACKUP to $TARGETFOLDER/$TIMESTAMP/"
cp -al $TARGETFOLDER/$LASTBACKUP $TARGETFOLDER/$TIMESTAMP/
rsync -av $SOURCEFOLDER $TARGETFOLDER/$TIMESTAMP/
fi
echo " OK !! Done"
This is a script I wrote for work to look through a number of remote servers via ssh (shared keys or include a .pem (id_rsa) file to compare a paths and all it’s subfolders.
The result is a report of which files are out of synch and if duplicates found they are listed separately.
#!/bin/bash
## Parameters sync_check [-i id.pem] [-u <user for ssh>] -p <path_to_diff> <target-system-IP1> <target-system-IP2> ...
# David Saliba [dx@sudoall.com]
RED='\033[0;31m'
YELLOW='\033[1;33m'
NC='\033[0m' # No Color
PEMFILE=""
SSH_USER="root"
function usage {
echo
echo -e "\t$0 usage as follows :"
echo -e "\t$0 [-i <pem_file>] [-u <ssh_user_name>] -p <path_to_diff> <ref-system-IPADDR1> <target-system-IP1> <target-system-IP2>..."
echo
}
[ $# -le 2 ] && echo && echo -e "${RED}Incorrect number of parameters ${NC}" && usage && exit 128
while getopts "i:u:p:" opt; do
echo $opt $OPTARG
case $opt in
i ) PEMFILE=$OPTARG; shift $((OPTIND-1)); OPTIND=1 ;
if [[ -f "$PEMFILE" ]]; then
PEMFILE="-i ""$PEMFILE"
else
echo "Pemfile : $PEMFILE not found. Quitting .. "
exit 1
fi
;;
u ) SSH_USER=$OPTARG ; shift $((OPTIND-1)); OPTIND=1 ;;
p ) PATH_TO_CHECK=$OPTARG ; shift $((OPTIND-1)); OPTIND=1 ;;
* ) usage
exit 128
esac
done
extfile="_target.md5.sync_check"
echo; echo
rm -f /tmp/*.sync_check
for i in $* ; do
ipcalc -cs $i
if [ $? == 0 ] ; then
echo -n "Retrieving Signature List from .. :[$i] : "
ssh $PEMFILE $SSH_USER@$i "hostname"
COMMAND="ssh $PEMFILE $SSH_USER@$i \"find $PATH_TO_CHECK -type f -exec md5sum {} \\; | sed -e 's/^/$i\t/'| sort -k 2 \""
#echo "Running : $COMMAND /tmp/$i""_target.md5.sync_check"
bash -c "$COMMAND" > /tmp/$i$extfile
else
echo "Parameter $i not a valid IP skipping .."
fi
done
echo ;echo; echo "Comparing data ... "; echo
OLDIFS=$IFS;
IFS=$'\n';
for i in `cat /tmp/*.sync_check | sort -k3 | uniq -f 1 -c | sort | egrep -v "^[\ \t]*$#" | sort -k4 ` ;do
NUMBER_OF_HITS=`echo "$i" | awk '{print ($1)}'`
echo $i
if [ $NUMBER_OF_HITS -gt 1 ] ; then
MD5Onward=`echo "$i" | awk '{print substr($0, index($0,$3))}'`
echo -e -n "${YELLOW}"
grep -h "$MD5Onward" /tmp/*.sync_check | awk '{print "\t\t",NR, $0}'
echo -e -n "${NC}"
fi
done ;
IFS=$OLDIFS
echo
echo
link to file here: http://jist.sudoall.com/sync_check/sync_check.sh
nJoy 😉
a=0;
for i in `cat $FOLDERLIST`
do
((a++))
percentage=`awk -v a=$a -v b=$NUMBEROFFOLDERS 'BEGIN {printf "%3.0f", a / b * 100; exit } '`
arrow=`printf '=%.0s' $(seq 1 $percentage)`
headed=`printf '%s%s' $arrow '>'`
paddedarrow=`printf '%-102s' $headed`
echo -ne "$paddedarrow $a/$NUMBEROFFOLDERS [$percentage] \r "
done
echo
njoy 😉
Adds a timestamp before alog from a script
awk -v sec=$(date -u +%s) '{print strftime("%Y-%m-%d %H:%M:%S",sec), $0; fflush();}'
in cron :
awk -v sec=$(date -u +\%s) '{print strftime("\%Y-\%m-\%d \%H:\%M:\%S",sec), $0; fflush();}'
So :
# echo hello world | awk -v sec=$(date -u +%s) '{print strftime("%Y-%m-%d %H:%M:%S",sec), $0; fflush();}'
2014-10-30 08:40:26 test
nJoy 🙂
This is a script from this site which I found particularly handy.
OPTION EXPLICIT
DIM CRLF, TAB
DIM strServer
DIM objWebService
TAB = CHR( 9 )
CRLF = CHR( 13 ) & CHR( 10 )
IF WScript.Arguments.Length = 1 THEN
strServer = WScript.Arguments( 0 )
ELSE
strServer = "localhost"
END IF
WScript.Echo "Enumerating websites on " & strServer & CRLF
SET objWebService = GetObject( "IIS://" & strServer & "/W3SVC" )
EnumWebsites objWebService
SUB EnumWebsites( objWebService )
DIM objWebServer, objWebServerRoot, strBindings
DIM myFSO
DIM WriteStuff
DIM tmp
Set myFSO = CreateObject("Scripting.FileSystemObject")
Set WriteStuff = myFSO.OpenTextFile("siteList.txt", 8, True)
tmp = "Site ID|Comment|State|Path|LogDir|HostHeaders|SecHostHeaders"
WriteStuff.WriteLine(tmp)
FOR EACH objWebServer IN objWebService
IF objWebserver.Class = "IIsWebServer" THEN
SET objWebServerRoot = GetObject(objWebServer.adspath & "/root")
tmp = objWebserver.Name & "|" & _
objWebServer.ServerComment & "|" & _
State2Desc( objWebserver.ServerState ) & "|" & _
objWebServerRoot.path & "|" & _
objWebServer.LogFileDirectory & "|" & _
EnumBindings(objWebServer.ServerBindings) & "|" & _
EnumBindings(objWebServer.SecureBindings) & "|" & _
""
WriteStuff.WriteLine(tmp)
END IF
NEXT
END SUB
FUNCTION EnumBindings( objBindingList )
DIM i, strIP, strPort, strHost
DIM reBinding, reMatch, reMatches
SET reBinding = NEW RegExp
reBinding.Pattern = "([^:]*):([^:]*):(.*)"
EnumBindings = ""
FOR i = LBOUND( objBindingList ) TO UBOUND( objBindingList )
' objBindingList( i ) is a string looking like IP:Port:Host
SET reMatches = reBinding.Execute( objBindingList( i ) )
FOR EACH reMatch IN reMatches
strIP = reMatch.SubMatches( 0 )
strPort = reMatch.SubMatches( 1 )
strHost = reMatch.SubMatches( 2 )
' Do some pretty processing
IF strIP = "" THEN strIP = "All Unassigned"
IF strHost = "" THEN strHost = "*"
IF LEN( strIP ) < 8 THEN strIP = strIP & TAB
EnumBindings = EnumBindings & strHost & "," & ""
NEXT
NEXT
if len(EnumBindings) > 0 Then EnumBindings = Left(EnumBindings,Len(EnumBindings)-1)
END FUNCTION
FUNCTION State2Desc( nState )
SELECT CASE nState
CASE 1
State2Desc = "Starting (MD_SERVER_STATE_STARTING)"
CASE 2
State2Desc = "Started (MD_SERVER_STATE_STARTED)"
CASE 3
State2Desc = "Stopping (MD_SERVER_STATE_STOPPING)"
CASE 4
State2Desc = "Stopped (MD_SERVER_STATE_STOPPED)"
CASE 5
State2Desc = "Pausing (MD_SERVER_STATE_PAUSING)"
CASE 6
State2Desc = "Paused (MD_SERVER_STATE_PAUSED)"
CASE 7
State2Desc = "Continuing (MD_SERVER_STATE_CONTINUING)"
CASE ELSE
State2Desc = "Unknown state"
END SELECT
END FUNCTION
Works like a charm..
nJoy 😉
A common problem when many people share large systems as the same user ( I know .. I know but anyways move on ) is that when you logon you might want to take over where someone else left off. Also sometimes you want to share a session with someone for supervision or just team experience.
Screen tool in linux is fantastic for this. I wrote this script to allow people to be reminded to have a screen session and if already there allow you to log on to the screen by either taking over the session or sharing it with the other user.
installation of screen is as easy as :
sudo yum install screen -y
or for you debbie penguins out there
sudo apt-get install screen -y
The script goes like this :
## Screen profile for user session sharing
## by David Saliba (copyleft) 2013
#!/bin/bash
function greet {
clear
cat /etc/motd
echo "Hostname:" `hostname `
echo
ifconfig | grep inet | egrep -v "inet6|localhost|127\.0\.0\.1"
echo
# df -h /
echo "Welcome ! # No screen session #"
}
function newscreen {
echo "Would you like to create a new session ? (Y/n)"
read -t 10 b
if [[ $b == "N" || $b == "n" ]]; then
{ # Dummy if no just continue
echo
}
else
{
echo " Remember to use <CTRL> + A and then d to leave the screen session active or just disconnect "
echo -n "Creating "
sleep 1; echo -n "." ;sleep 1; echo -n "."; sleep 1; echo -n "."
exec screen -S Workarea
}
fi
}
if [ -z "$STY" ]; then
firstscreen=$(screen -list | grep "(" | cut -f 2 | head -n 1)
# echo $firstscreen
if [ ! -z "$firstscreen" ]; then
{
echo "Found screen ($firstscreen).Do you want to jump on it (Y), or share the session (X)? (Default Y in 10s)"
read -t 10 a
if [[ $a == "N" || $a == "n" ]]; then
{
greet
}
elif [[ $a == "X" || $a == "x" ]]; then
{
echo -n "Joining "
sleep 1; echo -n "." ;sleep 1; echo -n ".";
exec screen -x $firstscreen
}
else
{
echo -n "Connecting and taking over"
sleep 1; echo -n "." ;sleep 1; echo -n ".";
exec screen -r -d $firstscreen
}
fi
}
else
{
greet str3amuK
newscreen
}
fi
fi
Save this script under /etc/profile.d/screen.sh or some other name you will recognize.