Theoriginal Vifirst saw development in 1976. Thus, it’s an editor that is more than thirty years old. It is older than Linux, and it is older than me. The fact that it is still so prevalent, is testament to the power and smart design that can be found in Vi. That said, I don...
There are several commands and programs provided byLinuxfor viewing the contents of file. Working with files is one of the daunting task, most of the computer users be it newbie, regular user, advanced user, developer, admin, etc performs. Working with files effectively and efficiently is an ...
Chapter 4. Using Linux Commands In This Chapter Understanding the shell Using the shell Working with the Linux file system Using the vi text editor in Linux This chapter presents a view of Linux from the shell. The shell is a command-line interpreter that lets you access some of the most ...
Do not use your standard editor to modify thesudoersfile. Use thevisudocommand because it is designed to enable any changes as soon as the file is saved and you exit from the editor. It is possible to use editors besidesviin the same way asvisudo. Let’s start analyzing this file at t...
The find command in Linux is used to find a file (or files) by recursively filtering objects in the file system based on a simple conditional mechanism. You can use the find command to search for a file or directory on your file system. By using the -exec flag (find -exec), matches...
The find command in Linux is used to find a file (or files) by recursively filtering objects in the file system based on a simple conditional mechanism. You can use the find command to search for a file or directory on your file system. By using the -exec flag (find -exec), matches...
Similarly, you can go to any location without having to use 'cd' command. It may not be helpful for you all the time. Becausecdis just two letter command. It won't be long to type just two characters. However, this is a just proof that shows we can do some cool stuff in Linux....
One possibility might some environment variables you have set in your shell are badly affecting the programs your are trying to run. If you can reliably generate a core dump via a standard Linux command (eg, vi), then try running that command in a shell that has nothing defined. To create...
Linux allows to you change the default size of the dmesg buffer. The CONFIG_LOG_BUF_SHIFT parameter in the /boot/config-2.6.18-194.el5 file (or similar file on your system) can be changed to modify the dmesg buffer. The below value is in the power of 2. So, the buffer size in ...
I would like to use cron on my Mac. I choose it overlaunchd, because I want to be able to use my new knowledge on Linux as well. However, I cannot seem to get thecrontab -ecommand to work. It fires up vim, I enter my test job: ...