Linux T&T » Scripts

Find and remove files older than 30 days

WladyX — Thu, 26 Jan 2012 16:19:50 +0000

find /folder -type f -mtime +30 -exec rm -rf {} \;

Bash eternal history

WladyX — Tue, 24 Jan 2012 16:32:28 +0000

export HISTTIMEFORMAT="%h/%d - %H:%M:%S " PROMPT_COMMAND="${PROMPT_COMMAND:+$PROMPT_COMMAND ; }"'echo $$ $USER \ "$(history 1)" >> ~/.bash_eternal_history'

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Mail to SMS using procmail

WladyX — Thu, 12 Jan 2012 15:36:39 +0000

Installation
Once you have plugged the USB Data cable and the T230 phone, you may have:

root@smsserver:~# lsusb Bus 001 Device 002: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port Bus 001 Device 001: ID 0000:0000 root@fr-c400-0257-l:~# ls -la /dev/ttyUSB0 crw-rw---- 1 root dialout 188, 0 2007-03-22 10:17 /dev/ttyUSB0 root@smsserver:~#

You can test your configuration using minicom

root@smsserver:~# minicom -s

-s is for minicom setup on launch. You may configure the serial port to /dev/ttyUSB0 and the speed to 9600 8N1.

Welcome to minicom 2.2 OPTIONS: I18n Compiled on Mar 7 2007, 15:10:03. Port /dev/ttyUSB0
Press CTRL-A Z for help on special keys
AT S7=45 S0=0 L1 V1 X4 &c1 E1 Q0 OK AT&C1 OK ATM0 OK ATDT1234 NO CARRIER ATM0 OK AT+CPIN? +CPIN: READYOK AT+CMGF=1 OK AT+CMGS ERROR AT+CMGS="06XXXXXXXX" > Hello World +CMGS: 0OK

gnokii settings
Edit the /etc/gnokiirc file:

port = /dev/ttyUSB0 [...] model = AT # model = 6510 [...] use_locking = no #use_locking = yes [...] serial_baudrate = 9600 # serial_baudrate = 19200

The use_locking setting has been modified as it may happen that I send SMS to more than one people at a time. The solution would be to use smsd…

From Mail to SMS

As we are using postfix and procmail, root user may not be used!
Let’s create a itroot user that will be the recipient of email notification to be turned into SMS.
Create a .procmailrc file for this user. A convention will be used for notification emails. The subject will contain [SMS] and only the subject of the email will be transfered as an SMS:

DEFAULT=/var/spool/mail/itroot MAILDIR=$HOME/Mail :0 * ^Subject:.*\[SMS\].* | cat - | awk -F":” ‘$1 == “Subject” { for(i=2; i <=$NF; i++) $(i-1) = $i; print $0 }’ | sudo /usr/bin/gnokii –sendsms 06XXXXXXXX >> /var/log/SMS.log 2>&1

As you can see, due to permissions issue, itroot as been allowed to invoke gnokii using sudo without password. This implies the following line in /etc/sudoers:

itroot ALL = NOPASSWD: /usr/bin/gnokii

More over, a log file has been created with write permission for itroot user: /var/log/SMS.log". This log file will allow you to make sure that gnokii is doing its job

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Export the privileges from MySQL and then import to a new server

WladyX — Thu, 29 Dec 2011 12:19:01 +0000

.bashrc:
mygrants() { mysql -B -N $@ -e "SELECT DISTINCT CONCAT( 'SHOW GRANTS FOR ''', user, '''@''', host, ''';' ) AS query FROM mysql.user" | \ mysql $@ | \ sed 's/$GRANT .*$/\1;/;s/^$Grants for .*$/## \1 ##/;/##/{x;p;x;}' }

mygrants --host=prod-db1 --user=admin --password=secret | grep rails_admin | mysql --host=staging-db1 --user=admin --password=secret
mygrants --password=xxx> /mysql.grant

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bash script to batch convert .wav to .mp3

WladyX — Tue, 29 Nov 2011 13:55:28 +0000

#!/bin/bash LAMEOPTS="-V 1"

for FILE in *.wav ; do OUTNAME="${FILE%%.wav}.mp3" lame $LAMEOPTS "$FILE" "$OUTNAME" done

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find mtime

WladyX — Wed, 23 Nov 2011 15:36:59 +0000

find . -mtime 0 # find files modified between now and 1 day ago
# (i.e., within the past 24 hours)
find . -mtime -1 # find files modified less than 1 day ago
# (i.e., within the past 24 hours, as before)
find . -mtime 1 # find files modified between 24 and 48 hours ago
find . -mtime +1 # find files modified more than 48 hours ago

find . -mmin +5 -mmin -10 # find files modified between
# 6 and 9 minutes ago

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Programmatically open tab in gnome-terminal, execute command, and have tab stay open

WladyX — Wed, 28 Sep 2011 13:17:05 +0000

cat /usr/local/bin/run-in-new-tab #! /bin/bash

window=”$(xdotool search –class gnome-terminal | head -1)”
xdotool windowfocus $window
xdotool key shift+Up
xdotool type “$*”
xdotool key Return

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server_info.sh

WladyX — Wed, 21 Sep 2011 09:49:26 +0000

#! /bin/bash ssh $1 -l root "cat /etc/*-release||cat /etc/slackware-version&& dmidecode |grep 'Product Name'&&uname -a&&cat /proc/cpuinfo|egrep 'processor|model name'&&free -m"

Grep OR

WladyX — Wed, 21 Sep 2011 07:15:25 +0000

cat /proc/cpuinfo |egrep 'processor|model name'

Find and remove old big mails from maildir

WladyX — Wed, 10 Aug 2011 14:36:13 +0000

#! /bin/bash for i in `ls /home/` find /home/$i/Maildir/*/* -type f -size +8192k -mtime +0 -exec grep -il "^Subject: test subject" {} \; -exec rm -f {} \; done