I have arraylist of filenames (java) and I want to delete these files using rm but it is time consuming can I do batching using xargs or something else which can help to delete files faster. Answer Don’t use rm. Use Java. As others have pointed out, spawning a process is much slower than doing it in your program. Also,
Tag: unix
PDFBox with special characters working fine on Windows but characters getting replaced with other characters in Linux
My requirement is that I have a PDF Acroform Template with few text fields and based on logged in user these text fields are prepopulated with user’s name and city and is presented to the user (Note user is not manually entering data into PDF but my backend code is doing this). so these name and city fields are giving
Unix shells: How to ensure command works against most common shells?
I have some java code which uses jsch to connect to our unix servers and run below command. ls -lt /tempdirectory/ grep -v ‘^do | grep “$”(date ‘+%b %e’)” | head -1 | awk ‘{print %9}’ …
Maven installation issues: JAVA_HOME should point to a JDK not JRE?
I’m super new to CS and very unfamiliar with UNIX/Bash vocab. I’m currently trying to install Maven, and I made a few mistakes by copy pasting old installation instructions (with incorrect version numbers) and now the whole process is so messed up. I first tried to follow the given instructions on the website, that didn’t work, then I tried a
How do I trigger the default signal handling behavior?
In my Java application I want to capture SIGINTs, do some pre-processing, and then let the default behavior (process termination) run. I would think I could do something like this: However when I send at SIGINT to this application, I get a SEGV: It seems SignalHandler.SIG_DFL is not meant to be called directly (even from other signal handling code). So
My JSch session doesn’t execute command
I’m trying to write a Java code that can ssh into a Unix server and reset a user’s password. So I tried to implement some of the code found in SO. Eg. Sending commands to remote server through ssh by Java with JSch Take commands(password) from string and set as InputStream to Unix servers in Java (JSCH) Using JSch ChannelExec,