How to run time on multiple commands AND write the time output to file?
I want to run time command to measure time of several commands.
Unix & Linux
Find the total size of certain files within a directory branch
Assume there’s an image storage directory, say, ./photos/john_doe, within which there are multiple subdirectories, where many certain files reside (say, *.jpg). How can I calculate a summary size of those files below the john_doe branch?
What program specifically sets /var/log/boot.log to 644 perms in RHEL/Centos 6?
I’ve been assigned to lock down all /var/log files so that they cannot be read except by the root user. I’ve been stumped by the /var/log/boot.log file. It seems that after every boot the file no matter what what previous permission state gets set to 644 permissions.
As root, how can I list the crontabs for all users?
I have a script being run automatically that I can’t find in the crontab for the expected users, so I’d like to search all users’ crontabs for it.
documentation on ptmx and pts
I am want to stream a linux terminal to my own program, and as far as I understand this is done by opening /dev/ptmx to start a new pts, I have tested this and this does indeed work (it creates a new file in /dev/pts). But I am not sure how I am supposed to … Read more
Send mail with an attachment and body of mail with table format
I need to send a mail with an attachment and body of mail in table format.I have used the below code to send mail. but unable to attache file.
Permissions: What’s the right way to give Apache more user permissions?
Context: I am making an in-browser control panel that gives me one button access to a library of scripts (.sh and .php) that I’ve written to process various kinds of data for a project. It’s a “one stop shop” for managing data for this project.
Problems with the Wifi connections (RTL8723BE). Kali Linux
I’d been using Kali on my VM for quite a long time and few days ago I’ve decided to install it like my main OS.
Make xargs pass as first parameter
I’m trying to produce this behaviour: