Printing a file in hexadecimal format of all content on Linux?
How to print a binary file in hexadecimal format of all content?
Use xxd:
xxd file.txt
or
xxd -p file.txt
How to print a binary file in hexadecimal format of all content?
Use xxd:
xxd file.txt
or
xxd -p file.txt
How to find out Linux and Windows uptime is introduced in this post. Linux uptime Linux uptime can be easily found out by the uptime command: $ uptime 22:19:29 up 10 days, 22:26, 5 users, load average: 0.00, 0.00, 0.00 The system is up for 10 days, 22 hours and 26 minutes. uptime gives a…
Seems the input method on Linux (ibus) does not work well with Chrome. But other programs, e.g. thunderbird, has not problem with ibus at all. What’s wrong with Chrome or ibus? Check whether the “Qt IBus library and Qt input method plugin” is installed. If not, installing it and restarting ibus may help: # yum…
It is simple for basic use. Just the example code. It is clear enough. int SendMsgToOtherWindow( ) { // find window by name HWND wnd = FindWindow( 0, “计算器” ); if ( wnd == 0 ) return 0; // print the child window text HWND cwd = GetWindow( wnd, GW_CHILD ); while ( cwd )…
How to open a port, say 3389, in iptables to allow incoming traffics to it? There are several cases for this question: ipv4 or ipv6 or both, TCP or UDP or both and which interface? For simplicity, I give commands to allow all (ipv4 and ipv6, TCP and UDP from all interfaces) using port 3389…
How to reset the Disqus WordPress plugin installation? After deactivating/activating the Disqus WordPress plugin, the ID and others are the same as the old ones. What I need is to change the Disqus forum ID for a WordPress installation. Find all the tuples in the _option table of WordPress that contains “disqus” and delete them….
stop-dfs.sh report that there are no datanodes running on some nodes like hdfs-node-000208: no datanode to stop However, there are DataNode process running there. How to clean these processes on many (100s) of nodes? You may use this piece of bash script: for i in `cat hadoop/etc/hadoop/slaves`; do echo $i; ssh $i ‘jps | grep…