My Journy of Shell Scripting
This is my first blog ever to be published. Now and own wards I would be simply posting my self written scripts for your comments.. Because, without your kind correction It would not be possible to write effective scripts..
Here is my first script
Description:
Searches for files
#! /bin/bash
clear
echo "============================="
echo "=========SEARCHTOOL=========="
echo "============================="
echo "Type name(HINT) of file:"
read nfile
echo ""
echo "Type your path to search"
read path
echo ""
echo "Type extension type of tile.e.g (.mp3, .txt, .rpm ): "
read kind
if [ -d $path ]; then
find $path -name "${nfile}*$kind"|sort
echo "Done!!!"
else
echo "$path is not a valid directory"
fi
#scripts ends
Here is my first script
Description:
Searches for files
#! /bin/bash
clear
echo "============================="
echo "=========SEARCHTOOL=========="
echo "============================="
echo "Type name(HINT) of file:"
read nfile
echo ""
echo "Type your path to search"
read path
echo ""
echo "Type extension type of tile.e.g (.mp3, .txt, .rpm ): "
read kind
if [ -d $path ]; then
find $path -name "${nfile}*$kind"|sort
echo "Done!!!"
else
echo "$path is not a valid directory"
fi
#scripts ends
Total Comments 4
Comments
-
easy Yam usage!!
This is my second script!! I think it would be help full for those who don't want to end up in confusion using yum...
In order to make download only work...you will have to download the plugin first...
begin root or sudo. type
For Newbies...Code:yum install yum-downloadonly.noarch -y
#-----------copy from below------------Code:vim easyyum.sh
#! /bin/bash
clear
echo "Type the starting name of package to list all avaialable: "
read package
yum list all | grep $package |sort|less
echo "Copy and paste the required package(s) from above.. Paste below and hit enter: "
read ins
echo "Want to directly install(0) or download to directory(1):enter 1 or 0"
read op;
if [ $op -eq 1 ]; then
echo "Enter directory to download: e.g (/root/, /home/user/ etc "
read dir
yum install $ins --downloadonly --downloaddir=$dir
else
yum install $ins
fi
echo "Done!!!"
#---------------copy till here----------
#Script ends..
Now save and exit.. press esc twice and then type
now change mode of script.. typeCode::wq
you are done...Code:chmod 755 easyyum.sh
now..
then finallyCode:cd to_directory_where_easyyum.sh is
Code:sh easyyum.sh
run it as root or sudo..
Cheers!!Posted 12-02-2008 at 05:15 AM by baig 
Updated 12-02-2008 at 06:45 AM by baig -
Take an easy Backup!!
Am absolutely free due to my university vacation and I'm loving spending hours and hours learning Linux... So what I learned to day so far is:
Same steps mentioned above in previous post, to make it work. Copy paste to vim, change mode and execute..
Description:
Takes back of specified path to a specific directory.
Reports completion status to logfile..
--------------copy form below-------------
#! /bin/bash
clear
echo "================================================================================"
echo "===============================Back Up Utility=================================="
echo "================================================================================"
echo "Enter name of back up Date/month/year will be added automaticaly: "
read name
echo "Enter path to take backup of: "
read take
if [ -d $take ];then
echo "Enter path to save backup in: "
read save
else
echo "$take is nota a valid Directory: usage: e.g: /root, /boot e.t.c "
echo "Back up of directory *** $take *** Failed at `date +%d-%m-%y-------%r`">>backuplog.log
echo "">>backuplog.log
echo "">>backuplog.log
echo "">>backuplog.log
exit 1
fi
tar -zcf $save/"${name}_`date +%d-%m-%y`.tgz" $take
if [ $? -eq 0 ]
then
echo "Backup of **** $take *** was taken Successfully to Dir:$save">>backuplog.log
echo "">>backuplog.log
echo "">>backuplog.log
fi
-----------script ends-------------------
you can change the logging path to your taste..
Love Linux, Live Linux
Cheers!!Posted 12-03-2008 at 03:14 PM by baig
Updated 12-03-2008 at 03:16 PM by baig -
I added some usable features to the previous script.
Support now also main idea of *nix:
- software use stdin+stdout+stderr, caller can change
it
You can call xxx.sh -s from/here -d to/location -n usingname
More error checking, exit if error
-----------------------------------------------
Quote:#!/bin/bash
# this script is posix-sh compatible, you can use ksh,bash,posix-sh, ....
# chmod a+rx this.sh
# ./this.sh
# save script name
PRG=$0
# ksh/bash/posix compatible echo no newline version
ASK="echo -e -n"
# logfile
logf="backuplog.log"
# init variable
name=""
save=""
take=""
########################### function ###########################
usage()
{
cat <<-EOT >&2
usage:$PRG -s dir -d dir -n name
EOT
[ $# -gt 0 ] && exit $*
}
############################ main ##############################
# - look cmdline options
while [ $# -gt 0 ]
do
flag="$1"
case "$flag" in
-s) # source dir
take="$2"
shift
;;
-d) # destdir
save="$2"
shift
;;
-n) # name
name="$2"
shift
;;
--) break ;; # - no more options
-*) usage 99 ;;
*) # no arguments, so error
usage 99
;;
esac
shift
done
# HERE is nice "template" method
cat <<EOT
================================================================================
===============================Back Up Utility==================================
================================================================================
$(date '+%Y-%m-%d') == $(hostname) == $(id -u -n) ==
$take -> $save ($name)
EOT
if [ "$name" = "" ] ; then
$ASK "Enter name of back up Date/month/year will be added automaticaly: "
read name
fi
[ "$name" = "" ] && exit 2
if [ "$take" = "" ] ; then
$ASK "Enter path to take backup of: "
read take
fi
[ "$take" = "" ] && exit 3
if [ ! -d "$take" ] ; then # - dir ?
# error redirect to the stderr
echo "$take is not a valid Directory: usage: e.g: /root, /boot e.t.c " >&2
cat <<-EOT >> $logf
Back up of directory *** $take *** Failed at $(date '+%Y-%m-%d-------%r')
EOT
exit 1
fi
if [ "$save" = "" ] ; then
$ASK "Enter path to save backup in: "
read save
fi
[ "$save" = "" ] && exit 4
mkdir "$save" >/dev/null 2>&1 # -make if needed
if [ ! -d "$save" ] ; then # - dir ?
echo "no $save dir ???" >&2
exit 5
fi
# using ex. variables give more readable code
bfile="$save/${name}_$(date '+%Y%m%d.%H%M%S').tgz"
if tar -zcf "$bfile" "$take"
then
cat <<-EOT >> $logf
Backup of **** $take *** was taken Successfully to Dir:$save
EOT
else
echo "tar error" >&2
fi
Posted 12-04-2008 at 01:40 AM by kshfi
-
A two lined script to keep you awair of an attack.!!
@above:First of all thanks for you improved script.
To control your computer over internet ssh is used secure shell, which lets a user/hacker to login to your computer by entering password. These events are logged into /var folder and its pretty hard for a beginner to sort it out..
I know many of us don't know where to search for such logs to see who has attempt and when..
The safest why, if you are sure you don't need ssh service ... stop it from services.
To get daily report automatically to your specified directory follow the steps:
logdir is Fedora default log route
Code:mkdir /root/SSH_attempts
######################################Code:vim checkssh.sh ***once you copy paste the code from below**** chmod 755 checkssh.sh
######FOR BEGINNERS###################
######################################
#!/bin/sh
cat /var/log/secure | grep "Failed password"|sort -n>/root/SSH_attempts/sshfailattempts.log
cat /var/log/secure | grep "Accepted password"|sort -n>/root/SSH_attempts/sshsuccessattempts.log
save this script under root
Start you cron service if not started.
type
1 * * * * /root/checkssh.shCode:crontab -e
save and exit..
now you will have update to your folder SSH_attempts
with two logfiles..
one for failed attempts.
send for success attempts.
Cheers!!Posted 12-04-2008 at 06:44 AM by baig
Updated 12-04-2008 at 06:45 AM by baig
