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What does Bigmem smp up in the Grub boot menu mean? SMP: (symmetric listbox processor) symmetric multiprocessor mode Bigmem: An optimized kernel up of 1G + Memory: (Uni processor) Single processor mode

Let the monitor not hibernate in Linux? We can use the Setterm command: The operation is as follows: Setterm-blank 0setterm-blank N (n for wait time) setterm other options for the command: setterm:argument error, usage setterm &http://www.aliyun.com/zixun/aggregation/37954.html "&G ...

How do I see the size of a directory in Linux? We can use the du command, as the following example: Du-sh directory name-s displays only totals-H to K, M, and g to improve the readability of the information. KB, MB, GB is http://www.aliyun.com/zixun/aggregation/12560.html ">1024 for conversion Unit-H to 1000 for conversion units [root@localhost ~]# du-sh/ US ...

What does every delegate in/proc/sys/sem in Linux mean? /proc/sys/sem contents are as follows 250 32000 32 128 The 4 parameters are SEMMSL (the maximum number of semaphores per user), Semmns (maximum number of system semaphores), SEMOPM (each SEMOP system call operand), Semmni ( Maximum number of system semaphore sets)

How do I see the use of a hard disk in Linux? We can use the DF command, as follows: 1, DF display in K (root@localhost ~]# df File System &http://www.aliyun.com/zixun/aggregation/37954.html       ">nbsp; &nbs ...

How does Linux run programs in different user identities? In the process of managing Linux, some of the time we need to specific users, given certain permissions to execute certain programs, how should we specify a different user identity to run the corresponding program? We can use the SU command to achieve: su-userhttp://www.aliyun.com/zixun/aggregation/11696.html ">name-c" User ...

How do you delete everything from a few days ago in Linux (including directory names and files in a directory)? We can have the following two ways: 1 find. -ctime +3-exec rm-rf {} \; Look for files before 3 days, then delete directory names and file operations 2 find./-mtime +3-print|xargs rm-f–r look for files before 3 days, then delete directory names and file operations

How do I modify the system time after the Linux installation is complete? After we install the Linux operating system, often need to adjust the system time, or to proofread the current time, we can use the following three ways: 1 Set your time zone: Timeconfig Asia/shanghai (if you are in updated China region) 2 Calibration with Standard Time server: Ntpdate time.nist.gov Of course, if you are Li Ka-shing, you can also calibrate your watch: Date ...

How do you make a CD-ROM ISO file in Linux? In general, we http://www.aliyun.com/zixun/aggregation/32995.html "> in Windows will be implemented with the help of Virtual CD-ROM or third-party ISO production software, But in Linux we just need to use a simple command! CP command: Cp/dev/cdrom/tmp/xxx.iso or DD command: DD If=/dev ...

Here's a tip for using the echo command, flip a string to flip a string over Example 1: [Root@localhost software]# echo "ABCDEFG" | Perl-lne ' {$a = reverse ($_); print $a;} ' results: GFEDCBA flip A string over Example 2: [Root@localhost software]# Echo ...

How do I install the kernel source pack in Linux? Sometimes, we need to upgrade the kernel of the system, we can use the RPM command to complete. Download the new ISO CD image file and mount the ISO file to the disc. The kernel source on your CD can be packaged, we use the following command: Rpm-i *kernel*source*.rpm

How to install Chinese Input method in Linux? Take Redhat8 as an example, X and its terminal under needless to say, the default installed, with Ctrl exhaled. Now to discuss pure console, go to the http://sourceforge.net/projects/zhcon/download zhcon-0.2.5.tar.gz, put it in any directory, and run the following command: Tar XVFZ ZHCON-0.2.5.TAR.GZCD zhcon-0 ...

Sometimes because of network reasons, or other circumstances, we can not access the Internet to get and install the RMP package, only through the hard disk ISO installation files to add and delete rpm files, how to add and remove the RPM package from the hard disk ISO file? We can use the following command: Redhat-config-packages--isodir=<path> <PATH> the directory where ISO files are located

Do you set vim in Linux to display or not display font colors? First we want to make sure that the vim-enhanced package is installed, and if not, follow these steps: [Root@localhost software]# wget ftp://ftp.pbone.net/mirror/ archive.download.redhat.com/pub/redhat/linux/5.2/en/os/i386/redhat/rpm ...

How do I find a file with a privilege bit s in Linux? We can use one of the following simple commands to achieve: find. -type f \ (-perm-04000-o-perm-02000 \)-exec ls-lg {} \;

How does a Linux system not allow ordinary users to modify their passwords? For Linux system security and http://www.aliyun.com/zixun/aggregation/13687.html "> User management requirements, there are some administrative environments we require ordinary users can not modify their user password, We can chmod the command: Do not let ordinary users change their passwords [Root@xin_fc etc]# chmod 511/usr/...

How do you view the installation location of files in RPM in Linux? We can use the following command: RPM-QPL aaa.rpm example: [Root@localhost software]# RPM-QPL Usr/bin/vim

How do I use md5sum files in Linux? md5sum isofile > Hashfilemd5sum file and hashfile file content comparison, verify that the hash value is consistent md5sum–c Hashfile

How do I switch to the X desktop in Linux? If you are logged in as a graphical login to Linux, then click on the login interface of the session (Task) that you can choose GNOME and KDE. If you are logged in as text, perform Switchdesk gnome or Switchdesk KDE and then startx into GNOME or KDE. (or vi ~/.xinitrc, add or modify to exec gnome-session or exec startk ...)

How do I remove files and special files named-A and \a in Linux? A delete file named-a 1 rm./-a2 RM---a,--tells RM this is an option, see GETOPT3 ls-i list inum, and then use Find. -inum inum_of_thisfile-exec rm ' {} ' \; b Delete the file named \a rm \\a C Delete the name with the/and ' the ' and ' files these characters are ...