General :: Noatime Mount And Find Command?
Nov 30, 2010
If the filesystem is mounted with noatime option does it influence find -atime behaviour? I tested and it looks that find is able to see access time but why should it if mounted with noatime? Or maybe it depends on the type of filesystem (I`m using XFS)?EDIT: Looks the answer is [URL]htmlIf a file system has been mounted with this option, reading accesses to the file system will no longer result in an update to the atime information associated with the file like we have explained above. The importance of the noatime setting is that it eliminates the need by the system to make writes to the file system for files which are simply being read. Since writes can be somewhat expensive, this can result in measurable performance gains. Note that the write time information to a file will continue to be updated anytime the file is written to.
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Aug 1, 2011
I was trying to know if relatime or noatime was set on a filesystem, but i didn't found the information, neither in /etc/fstab, neither in kernel boot options.
First of all, it seems clear that i don't have the "normal" behaviour on atime:
root@antec:/tmp# rm -f test.txt; echo a>test.txt
root@antec:/tmp# stat test.txt | grep -i 2011
Access: 2011-08-01 21:54:30.000000000 +0200
Modify: 2011-08-01 21:54:30.000000000 +0200
[Code]....
- Is noatime or relatime a default mount options, and if yes, from which kernel release ?
- Is there a way to see the default mount options (ie: how can i see why i don't have the "normal" atime behaviour ?)
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Nov 9, 2010
I have an SSD and I'm trying to set noatime to save writes. I didn't do this at the time of install, so I edited /etc/fstab later on. I noticed, however, that when I right-click on a file and view its properties, it still gives me a "modified" and "accessed" time. Did I do something wrong? Here is my fstab:
Code:
/dev/disk/by-id/ata-INTEL_SSDSA2M080G2GN_CVPO0161048A080JGN-part1 / reiserfs acl,user_xattr,noatime 1 1
[code]....
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Mar 18, 2010
So, I plugged in two hard drives to my server. I started with two, an IDE and an SATA. Then I plugged in another SATA and an external SATA using a PCI controller card.
I currently only have command prompt (Putty) access. How can I set the drives up to be usable. They were on another server that died.
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Sep 7, 2010
I have 4 Linux machines with cluster.My target is to find all kind of IP address (xxx.xxx.xxx.xxx) in every file in the linux system remark: need to scan each file in the linux system and verify if the file include IP address if yes need to print the IP as the following
more /etc/inet/file.example1
182.23.2.4
255.255.0.0
10.10.1.1
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Sep 11, 2009
I am trying to do a find/grep/wc command to find matching files, print the filename and then the word count of a specific pattern per file. Here is my best (non-working) attempt so far:
wc `find . ( -name "*.as" -o -name "*.mxml" ) -exec grep -H HeightResizableList {}` ;
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Jul 15, 2011
Is there a way to specify to find that I only want text files (and not binary files)? Grep has an option to exclude binary files, so I thought find probably has a similar feature, but I've been unable to find it.
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Jan 25, 2009
I know how to search for normal files but can you let me know " How to search for 5 setuid files on the system. Also explain, for each file, why setuid mechanism is necessary for the command to function properly"
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Aug 3, 2010
am new to linux and trying to find a file in sub directories using find command as:find .-name *.jpg -type fBut I am unable to get the result as find command is not permitted by the server administrator.Is there any way to find files without using find command.
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May 23, 2011
How can I find which /dev/? device to mount my USB hard drive on redhat 3 taroon, I've been googling a lot and checked log files and still no clue. I'm trying my last chance with you experts, # /sbin/fdisk -lgives nothing about the USB drive
# lsusb -vv
Bus 004 Device 005: ID 059f:0951 LaCie, Ltd
Device Descriptor:
[code]....
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Sep 23, 2010
When trying to run a program, from Gnome terminal, for a device connected to /dev/ttyS0 (COM1), I get a segmentation fault. I think the terminal may not want to leave the connection open for some reason. Do I first need to mount the device somehow?
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May 3, 2011
Where's the log where I can read mounting errors?
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Feb 10, 2010
I currently have this filesystem for my live squid server. Can I remount it to add noatime while the cache is being used?
[root@ ~]# cat /proc/mounts
rootfs / rootfs rw 0 0
/dev/root / ext3 rw,data=ordered 0 0
/dev /dev tmpfs rw 0 0
/proc /proc proc rw 0 0
/sys /sys sysfs rw 0 0
/proc/bus/usb /proc/bus/usb usbfs rw 0 0
devpts /dev/pts devpts rw 0 0
/dev/sda3 /var ext3 rw,data=ordered 0 0
/dev/sda1 /boot ext3 rw,data=ordered 0 0
tmpfs /dev/shm tmpfs rw 0 0
none /proc/sys/fs/binfmt_misc binfmt_misc rw 0 0
sunrpc /var/lib/nfs/rpc_pipefs rpc_pipefs rw 0 0
/etc/auto.misc /misc autofs rw,fd=7,pgrp=2586,timeout=300,minproto=5,maxproto=5,indirect 0 0
-hosts /net autofs rw,fd=13,pgrp=2586,timeout=300,minproto=5,maxproto=5,indirect 0 0
nodev /dev/oprofile oprofilefs rw 0 0
/dev/sda2 /var/spool/squid reiserfs rw 0 0
Remount:
mount -o noatime,remount,rw /dev/sda2
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Jul 6, 2010
How to find out of a filesystem is in readonly mode?
What will the output be from the 'mount' command if a filesystem is read-only?
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Feb 11, 2010
If it's a freebsd partition,what's the command to mount bsd partition?
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Jan 18, 2011
I have added noatime option to /etc/fstab file but when i try to reboot, it cannot mount the file system.
I try to erase the noatime option in /etc/fstab file but it does not allow for write because it is only a read only file system.
How can i mount with write access which allow me to delete the noatime option in /etc/fstab.
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Nov 9, 2010
I tried to mount my CD Rom drive and got this response: "mount: can't find cdrom in /etc/fstab or /etc/mtab"
I did see the CD Rom drive briefly after I upgraded from 10.04 to 10.10 but I couldn't access the drive and when I logged back in.
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Oct 11, 2009
Code:
ntfs-3g /dev/sda1 /media/drive
Or
Code:
mount -t ntfs /dev/sda1 /media/drive
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Nov 29, 2010
I use a ext4 partition to store my data, to mount and open that partition I open Nautilus file manager, then click on the partition icon and label on the left side.
So if I don't have a desktop environment, how can I mount a partition in terminal?
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Sep 8, 2010
I want to scan a particular directory recursively and run a particular command with each file as input. For this I am using "find /dir/path". I dont want to write any long script containing loop on the output of "find". I want a single command which will allow me to run a command on each file of the "find" command output.
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Mar 31, 2010
When I run find command with exec option, it just hangs on me. what am I doing wrong?
find /stdlist -type d -mtime 0 -exec cp -r {} joblogs ;
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Oct 17, 2009
After searching the boards, I dug through the udev man pages and rule files looking for a way to modify the default automount options for USB flash drives. Apparently, the options are somewhere else. Is there a simple way to add noatime to the default mount options?
Currently, the flash drive is automounted as follows:
I'm using Fedora 12, beta RC 2 in case that makes a difference.
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Aug 28, 2010
Is there some file in Linux that enumerates and describes mount options for file systems like /etc/services describes ports?
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Aug 9, 2011
I have a program which mounts /dev/sdb1 for which I lack the source code. This device does not exist on my RedHat 9 system and I want to create /dev/sdb1 such that it's an alias for /dev/hdb1 Can I do this? with MAKEDEV?
I need to have an alias which will allow it to mount, not create a symbolic link to an already mounted directory. i.e. 'mount /dev/sdb1 /mnt/harddrive' should actually mount /dev/hdb1
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Mar 15, 2010
want to copy a file from my desktop to usb drive in command line...how can i do it...i have no gui interface..all i want to do it by command line.i.e how to mount the usb drive and copy the file to usb and then unmount it..i also want to access windows xp drive from linux in command line without gui interface...in opensuse there is windows folder under file system but in ubuntu there is no such option...so if i want to place a file from linux to windows drive such as d ..how can i manage it with command line...no gui interface is available...
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Oct 21, 2010
#!/bin/shLOOK_FOR="NTLMAuthenticationFilter"for i in `find ./ -name "*jar"`doecho "Looking in $i ..."grepjar -e $LOOK_FOR $idoneI wrote the script above, and try to find if there any file name LOOK_FOR exist in those jar,my quest is: grepjar -e $LOOK_FOR $ihere how can I check if there are any successful result , and output them ?
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Nov 1, 2010
What is the difference between *.xml and *.xml in find command in Linux/macThe results of:find . -name *.xml and find . -name *.xml are different. But why?Also, is locate '*.xml' better than find? Which one is the most commonly used?
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Aug 12, 2010
I've got a script where I have to parse out the last modified time for a large amount of files. Piping the output for "ls" into "cut" seems to work most of the time, but the output is unpredictable.The "fields" argument doesn't find the date modified columns consistently, and using character count is as well since the output can vary in width depending on the file name
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May 17, 2010
I want to know the command which will list the local users created by me not system users.
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Jun 13, 2010
How to find info and contents of the SD card via linux terminal. I found a command "mount"in internet. According to it it's in dev/sdb/.. but I didn't found such. I saw dev/sdc/
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