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Unix Cron is a daemon ('service') that runs in the background and runs the commands specified in the crontab file at the intervals specified within. This allows someone to easily run a program or script every hour, day, week, etc.
The crontab file can be found in two places. Typically, it is located in the /etc directory. Cron also supports multi-user setups, in which case you will also find other 'crontab' files in some distribution-specific location (I believe /var/spool/cron, named after the user that owns the file).
More information on Cron can be found by Googling "cron" or "crontab".
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What are the header file of scanf function?
stdio.h
Which header file has clrscr function?
conio.h
Which is the keyword used to limit the scope of a function to the file in which it resides?
Declare the function static.
Difference between library file and header file?
EX: pgm #include<stdio.h> main() { printf("haiii"); } Header file: (1) contains the function(printf) declaration (2) during preprocessing, the printf function is replaced by the function declaration Library file : (1) contains the function(printf) definition (2) during linking, the function declaration is replaced with the function definition.obviously, everything will be in object while linking
Classification of file processing by function?
Master FileTransaction FileReport FileWork FileProgram FileText File
How do you create or edit a crontab in Linux?
"crontab -e".
Which command can be used to execute a series of Linux commands at a specified time?
You can schedule jobs using cron and the /etc/crontab file, or you can use the "at" command
How do you automate a command in Linux?
Use the cron jobs See /etc/cron.daily /etc/cron.weekly /etc/cron.hourly /etc/crontab and the command crontab
Which command allow you to edit the cron jobs for the current user in linux?
crontab -e
How can a user set up their own crontab entry?
crontab -e
What is the oldest Linux file system?
The first file system Linux supported was the MINIX file system.
What is file manager in Linux?
There is no set file manager in linux. Examples of Linux file managers include but: Nautilus (GNOME) Thunar (XFCE) Dolphin (KDE)
How do you stop a crontab from emailing you?
Just add this to the end of the crontab line > /dev/null 2>&1
What is the Linux Virtual File System used for?
The Linux VFS (Virtual File System) may be thought of as a sort of interface between the Linux kernel and the mounted file systems. There can be many different file system types mounted simultaneously and VFS allows the Linux kernel to see and address them all in a similar way. This provides Linux with a great deal of flexibility. [JMH]
What file system does Red Hat Enterprise Linux use?
ext3 is the default file system for Red Hat Enterprise Linux.
How do you edit an inode in Linux since everything in Linux is a file?
You don't edit inodes manually. They are managed by the file system driver.
Where can one learn about Linux file server?
One could find information online regarding Linux file servers at the HowToForge website. The site covers everything one would need to know about Linux file servers.
