Linux

How to check response time of webpage

Find or calculate response time of web site

How to calculate or find the response time of web site or web page curl -s -w "\nResponse time:\t%{time_total}s\n" -o /dev/null http://w3calculator.com The above curl is used to print the time it takes in seconds to return a web page. Sometimes it might be necessary for web developer or the web site owner  ..

Copy file content to x clipboard

Copy file content to mouse clip board

How to copy file content to X clipboard !xclip -i % Allows to copy the file contents to X clipboard, and then be pasted in any application with the middle mouse button.   ..

How to capture video in linux machine

Ffmpeg command to capture video

The below ffmpeg command is used to capture video in linux machine. ffmpeg -f x11grab -s `xdpyinfo | grep 'dimensions:'|awk '{print $2}'` -r 25 -i :0.0 -sameq /tmp/out.mpg > /root/howto/capture_screen_video_ffmpeg   ..

How to disable or remap a keyboard key in linux

Remap a keyboard key in linux

How can I disable one or several keys of my laptop keyboard in Linux? When I press DELETE key it gets stuck and deletes everything No problem! You can use the following command to remap or disable any key of your keyboard: xmodmap -e 'keycode <value>=<action>' For example, run the following to  ..

Find network activity of a user in realtime

Find network activity of a process

View network activity of any application or user in realtime lsof -r 2 -p PID -i -a The above command will help to find network activity of a process or a user in real time. The "-r 2" option puts lsof in repeat mode, with updates every 2 seconds. (Ctrl  ..

Backup all mysql databases to individual files on a remote server

Copy mysql databases to a remote server

Shell script to Backup all mysql databases to individual files on a remote server for I in $(mysql -e 'show databases' -u root --password=root -s --skip-column-names); do mysqldump -u root --password=root $I | gzip -c | ssh user@server.com "cat > /remote/$I.sql.gz"; done It grabs all the database names granted for the  ..

Translate a phrase using google translator

Script to translate a paragraph

translate() { curl -s "http://ajax.googleapis.com/ajax/services/language/translate?v=1.0&q=$1&langpair=$2%7C$3" | sed 's/.*"translatedText":"\([^"]*\)".*}/\1\n/'; } Usage: translate <phrase> <source-language> <output-language> Example: translate hello en es This script is very much helpful when you are about to translate a para or phrase.   ..

How to find language of a string

Detect language of a string from google

detectlanguage() { curl -s "http://ajax.googleapis.com/ajax/services/language/detect?v=1.0&q=$@" | sed 's/{"responseData": {"language":"\([^"]*\)".*/\1\n/'; } Usage: detectlanguage <phrase> Example: detectlanguage bola   ..

Script makes you look busy

Small Script to make you look busy

This command will make you to look busy in your system. alias busy='my_file=$(find /usr/include -type f | sort -R | head -n 1); my_len=$(wc -l $my_file | awk "{print $1}"); let "r = $RANDOM % $my_len" 2>/dev/null; vim +$r $my_file' This makes an alias for a command named 'busy'. The 'busy'  ..

How to reset or update vtiger admin password

Change vtiger admin password

Here is a simply sql query to change vtiger admin password: Login in to mysql client: mysql -u root -p (you need to know your mysql root password...) then issue this command: mysql> update vtiger_users set user_hash='21232f297a57a5a743894a0e4a801fc3', user_password='adpexzg3FUZAk',confirm_password='adoY/6Mlw8kqg',crypt_type='' where user_name='admin'; and you can login with: username: admin password: admin   ..

How to find gateway ip address

Find gateway ip address

The below command will fetch the gateway ipaddress of your system. /sbin/route -n | grep "^0\.0\.0\.0" | awk '{ print $2 }' ip route list match 0.0.0.0/0 | cut -d \" \" -f 3 OUTPUT: 192.168.0.1 The above command will just fetch the gateway IP Address and will print it. Both  ..

How to fetch gateway ip address

Use iproute2

The below command will fetch the gateway ipaddress of your system. ip route list match 0.0.0.0/0 | cut -d " " -f 3 OUTPUT: 192.168.0.1 The above command will just fetch the gateway IP Address and will print it. You can also use iproute2 command to fetch the gateway IP address.   ..

Browse websites on non standard ports like 79 with firefox

Config your browser to access other ports

Browse websites on non-standard ports like 79 with Firefox If you try to browse http://www.yourhomepage.com:79 Firefox will cancel this request for your protection. It does that by default whenever you use a port other than port 80 - the default website port. Solution: 1. Open Firefox 2. Type about:config in the browser address field  ..

Find log files opened by a process

List .log files open by a pid

List .log files open by a pid or by a particular process lsof -p 1234 | grep -E "\.log$" | awk '{print $NF}' Uses lsof to display the full path of ".log" files opened by a specified PID. You can find what a process have done. By using the process id you  ..

How to lists installed kernels

List all the installed kernals

The below command will print the list of installed kernel by searching the rpm. rpm -qf /lib/modules/* The below command will list the kernel module using ls command ls -1 /lib/modules   ..

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