Conclusion I showed four different ways to get the full file path in Linux. The find and ls commands are common while realpath and readlink are hardly known to many Linux users. It's always good to learn new things, isn't it?
You may have come across the saying, “Everything is a file in Linux.” Although this is not entirely true, it does hold a set of truths to it. In Linux and Unix-like systems, everything is like a file. That means the resources in the Unix system get assigned a file descriptor, i...
Unless a file's size is an exact multiple of blocks, the space it uses on the hard drive must always be rounded up to the next whole block. For example, if a file is larger than two blocks but smaller than three, it still takes three blocks of space to store it. Two measurements ...
For example, if you’re sending data from Host A to Host B, as shown in Figure 9-1, your bytes leave the application layer on Host A and travel through the transport and network layers on Host A; then they go down to the physical medium, across the medium, and up again through the...
How to get the directory path and file name from a absolute path in Bash on Linux? Posted onMar 24, 2018byEric MaInQA Eric Ma Ericis a systems guy. Eric is interested in building high-performance and scalable distributed systems and related technologies. The views or opinions ex...
When we want to find a file, we can lose precious time by going through all folders we last remember where our file is, or rely on handy Linux tools, such asfind,locate, or evenfzf. This tutorial would be covering the use of thefindprogram, and how to use some of the numerous optio...
How to get a path’s mtime in C++ onLinux? The path can be a file or a dir. You may call the standardlibraryfunctionlstat()for the file or dir under the path. intlstat(constchar*pathname,structstat *statbuf); From the returnedstatstruct, there is a fieldst_mtimwhich is the mtime...
One weakness of locate is that if you create a file during the day, you have to wait until the overnight run of updatedb (or run it manually) before the file is in the database. For real-time queries, we can use find. Using find Find is a very old Linux command that goes back ...
doesn’t discriminate between files and directories, this error message occurs everywhere. You get it when you try to read a file that does not exist, when you try to change to a directory that isn’t there, when you try to write to a file in a directory that doesn’t exist, and ...
Linux uses an enhanced version of the Bourne shell called bash or the “Bourne-again” shell. The bash shell is the default shell on most Linux distributions, and /bin/sh is normally a link to bash on a Linux system. You should use the bash shell when running the examples in this book...