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 😉
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"
SECONDS=0;sleep 5 & sleep 6 & sleep 3 & sleep 7 & wait ; elapsedseconds=$SECONDS ; echo $elapsedseconds
nJoy 😉
for i in {1..100} ; do echo '{"version": "1.1","host":"david.org","short_message":"A short message that helps you identify what is going on","full_message":"Backtrace here\n\nmore stuff","level":1,"_user_id":9001,"_some_info":"foo","_some_env_var":"bar"}' | nc -w 1 -u graylog.mydomain.com 12201 ; done
nJoy 😉
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 😉
Assume you do not have curl/telnet/netcat (or nc does not support -z as in later versions ?? why did they remove it ?? ) the following will work on any recent Bash version.
(echo > /dev/tcp/skinner/22) >/dev/null 2>&1 && echo "Port is open" || echo "Port is closed"
nJoy 😉
#!/bin/bash
wall <<zzz23EndOfMessagezzz23
E-mail your noontime orders for pizza to the system administrator.
(Add an extra dollar for anchovy or mushroom topping.)
# Additional message text goes here.
# Note: 'wall' prints comment lines.
zzz23EndOfMessagezzz23
# Could have been done more efficiently by
# wall <message-file
# However, embedding the message template in a script
#+ is a quick-and-dirty one-off solution.
exit
nJoy 😉
#!/bin/bash
echo "`basename $0` Tool"
[[ $# != 3 ]] && echo "Invalid number of arguments" && echo "Sample Call : create_ftp.sh <numeric_partner_id> <username_alphanum> <password_alphanum>" && exit 128
#number re
re='^[0-9]+$'
if [[ $1 =~ $re ]] ; then
PARTNERID=$1
echo "Partner id set to $1"
else
echo "Invalid param #1 should be numeric"
echo "Sample Call : create_ftp.sh <numeric_partner_id> <username_alphanum> <password_alphanum>"
exit 128
fi
re='^[a-zA-Z0-9][-a-zA-Z0-9]{0,61}[a-zA-Z0-9]$'
if [[ $2 =~ $re ]] ; then
USERNAME=$2
echo "Username set to $2"
else
echo "Invalid param #2 should be alphanumeric"
echo "Sample Call : create_ftp.sh <numeric_partner_id> <username_alphanum> <password_alphanum>"
exit 128
fi
if [[ $3 =~ $re ]] ; then
PASSWORD=$3
echo "Password set to $3"
else
echo "Invalid param #3 should be alphanumeric"
echo "Sample Call : create_ftp.sh <numeric_partner_id> <username_alphanum> <password_alphanum>"
exit 128
fi
njoy 😉
This is a small script that takes a bash command and decodes the parameters in non sequential order except definers.
#!/bin/bash
if [ "$#" -ne 1 ] || ! [ -d "$1" ]; then
echo "Usage: $0 " >&2
exit 1
fi
while [[ $# > 1 ]]
do
key=”$1″
echo $key
shift
case $key in
-c|–color|color)
COLOR=$1
shift
;;
-s|–section|section)
SECTION=”yes”
;;
*)
;;
esac
done
nJoy 😉
This script searches for an initial tag and and closing one and replaces the content.
# !/bin/bash
awk ‘
BEGIN {pr = 1;one = 0}
/<Name>OPENING<\/Name>/ {pr = 0;}
{ if (pr) print }
{ if (!pr && !one) {print (“\t\t <Name>OPENING</Name> \n \t\t\t <Value>false</Value> \n \t\t<Type>STOPHERE</Type> \n ” ); one =1 ;}}
/<Type>STOPHERE<\/Type>/ {pr = 1;}
‘< $1
Not the most elegant solution but lends itself to multiple replacements.
find . | grep file.xml | xargs -I {J} -n 1 bash -c ‘ ./aw.sh {J} > {J}.new ; mv -f {J}.new {J} ‘
nJoy 😉