Note: In standard form, find in combination with pipe and xargs will not work with filenames with spaces...
A loop will, but then a while read loop should be used instead of a for loop and the file references should have double quotes around them, for example..
Last edited by Scrutinizer; 10-22-2012 at 06:43 AM..
Hi
I am a shell-script newbie and am looking to synchronize certain files in two directory structures.
Both these directory-trees are in CVS and so I dont want the CVS directory to be copied over.
I want only .sh and .pl files in each subdirectory under these directory trees to be... (3 Replies)
I have to write a shell script which can delete all the files and directories recursively inside the specified directory but should not delete the specified directory.
Please some body help me in writing the script. (3 Replies)
Hi,
I need to concatenate data files with a .mp extension that are stored in directories by year. I want to keep the same filename as an output for example:
for the file name p030.mp, which resides in the following subdirectories:
/2000/p030.mp
/2001/p030.mp
/2002/p030.mp
I want to:... (4 Replies)
I have a script which generates recursively some files in folders for a given root folder.
I have checks for permissions and it works for all folders except one(i have 777 permission on it). When i try calling the script in problematic folder(problematic folder being root folder), script works as... (2 Replies)
Display the number of files in a directory and recursively in each subdirectory
To look something like below, for example
/var 35
/var/tmp 56
/var/adm 46Any ideas how can we do this?
Got a sun cluser global mount point which takes ages to mount everytime, need to understand... (5 Replies)
I have a directory that is restricted and I cannot just copy the files need, but I can cat them and redirect them to a new directory. The files all have the date listed in them. If I perform a long listing and grep for the date (150620) I can redirect that output to a text file. Now I need to... (5 Replies)
This should recursively walk through all dirictories and
search for a specified string in all present files, if found
output manicured content (eg some regex) with CAT into
a specified directory (eg /tmp/)
one by one, keeping the original names
This is what I have so far, which seems to... (1 Reply)
I love the -newerct flag for the Cygwin find command on windows.
Can I use "/usr/bin/find . -newerct '3 hours ago'" to conditionally copy a directory tree so that only the files in the directory tree that are younger than 3 hours are copied to my destination directory such that the directory... (4 Replies)
Hi.
I found many scripts in the web of achieving this.
But I like to use this one
find /EDWH-DMT03 -xdev -size +10000 -exec ls -la {} \;|sort -n -k 5 > LARGE.rst
But the problem is, why it still list out files with 89 bytes as the output? Is there anything wrong with the command?
My... (7 Replies)
I need to copy a complete directory structure into a new location. But I want to have all files copied into one directory and leave out the directory structure. So all files must be placed in one directory. (4 Replies)
Discussion started by: ReneVL
4 Replies
LEARN ABOUT CENTOS
losetup
LOSETUP(8) System Administration LOSETUP(8)NAME
losetup - set up and control loop devices
SYNOPSIS
Get info:
losetup loopdev
losetup -l [-a]
losetup -j file [-o offset]
Delete loop:
losetup -d loopdev...
Delete all used loop devices:
losetup -D
Print name of first unused loop device:
losetup -f
Setup loop device:
losetup [-o offset] [--sizelimit size]
[-p pfd] [-rP] {-f[--show]|loopdev} file
Resize loop device:
losetup -c loopdev
DESCRIPTION
losetup is used to associate loop devices with regular files or block devices, to detach loop devices and to query the status of a loop
device. If only the loopdev argument is given, the status of the corresponding loop device is shown.
Note that the old output format (e.g. losetup -a) with comma delimited strings is deprecated in favour of the --list output format (e.g.
losetup -a -l).
OPTIONS
+The size and offset arguments may be followed by the multiplicative +suffixes KiB=1024, MiB=1024*1024, and so on for GiB, TiB, PiB, EiB,
ZiB and YiB +(the "iB" is optional, e.g. "K" has the same meaning as "KiB") or the suffixes +KB=1000, MB=1000*1000, and so on for GB, TB,
PB, EB, ZB and YB.
-a, --all
show status of all loop devices. Note that not all information are accessible for non-root users. See also --list. The old output
format (as printed without --list) is deprecated.
-c, --set-capacity loopdev
force loop driver to reread size of the file associated with the specified loop device
-d, --detach loopdev...
detach the file or device associated with the specified loop device(s)
-D, --detach-all
detach all associated loop devices
-f, --find
find the first unused loop device. If a file argument is present, use this device. Otherwise, print its name
-h, --help
print help
-j, --associated file
show status of all loop devices associated with given file
-l, --list
if a loop device or the -a option is specified, print default columns for either the specified loop device or all loop devices,
default is to print info about all devices.
-o, --offset offset
the data start is moved offset bytes into the specified file or device
-O, --output columns
specify which columns are to be printed for the --list output
--sizelimit size
the data end is set to no more than size bytes after the data start
-P, --partscan
force kernel to scan partition table on newly created loop device
-r, --read-only
setup read-only loop device
--show print device name if the -f option and a file argument are present.
-v, --verbose
verbose mode
ENCRYPTION
Cryptoloop is no longer supported in favor of dm-crypt. For more details see cryptsetup(8).
RETURN VALUE
losetup returns 0 on success, nonzero on failure. When losetup displays the status of a loop device, it returns 1 if the device is not con-
figured and 2 if an error occurred which prevented from determining the status of the device.
FILES
/dev/loop[0..N]
loop block devices
/dev/loop-cotrol
loop control device
EXAMPLE
The following commands can be used as an example of using the loop device.
# dd if=/dev/zero of=~/file.img bs=1MiB count=10
# losetup --find --show ~/file.img
/dev/loop0
# mkfs -t ext2 /dev/loop0
# mount /dev/loop0 /mnt
...
# umount /dev/loop0
# losetup --detach /dev/loop0
AUTHORS
Karel Zak <kzak@redhat.com>, based on original version from Theodore Ts'o <tytso@athena.mit.edu>
AVAILABILITY
The losetup command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.
util-linux July 2003 LOSETUP(8)