Maybye something more like
Note that those are backticks, not ordinary single quotes -- same key as ~ but without shift. What it does is execute the command inside it and convert it's output into text, so it would print the contents of the file and convert them into a string which it feeds as commandline parameters into chown.
I have a flash drive this I store files on, but I need the whole drive to be password protected. I was thinking of making the drive root permissions, but I'm not sure if that will need the root password of the computer from which I transfered the files from or the root password of the computer I'm... (1 Reply)
Hi,
I'd like to process multiple files. For example:
file1.txt
file2.txt
file3.txt
Each file contains several lines of data. I want to extract a piece of data and output it to a new file.
file1.txt ----> newfile1.txt
file2.txt ----> newfile2.txt
file3.txt ----> newfile3.txt
Here is... (3 Replies)
Hi!
I'm new in awk and I need some help.
I have a folder with a lot of files and I need that awk do something in each file and print a new file with the output. The input file name should be modified when I print the outpu files.
Thanks in advance for help!
:-)
ciao (5 Replies)
I have roughly ~30 .txt files in a directory which all have unique names. These files all contain text arranged in columns separated by whitespace (example file:
[#YY MM DD hh mm WDIR WSPD GST WVHT DPD APD MWD PRES ATMP WTMP DEWP VIS TIDE
#yr mo dy hr mn degT m/s m/s m sec ... (5 Replies)
RHEL 6.3
Could someone tell me how to use the find and chown command to replace all files in a directory owned by user1 (for this example) and replace with user1:group1? Most importantly I dont want to change any files owned by root. I recently used the following command but it changed the root... (4 Replies)
How can I run the following command on multiple files and print out the corresponding multiple files.
perl script.pl genome.gff 1.txt > 1.gff
However, there are multiples files of 1.txt, from 1----100.txt
Thank you so much.
No duplicate posting! Continue here. (0 Replies)
How can I Run one script on multiple files and print out multiple files.
FOR EXAMPLE
i want to run script.pl on 100 files named 1.txt ....100.txt under same directory and print out corresponding file 1.gff ....100.gff.THANKS (4 Replies)
Hi All,
I want to use egrep on multiple files and the results should be output to multiple files. I am using the below code in my shell script(working in Ksh shell). However with this code I am not attaining the desired results.
#!/bin/ksh
(
a="/path/file1"
b="path/file2"
for file in... (4 Replies)
Hello Gurus,
I have a multiple pipe separated files which have records going over multiple Lines. End of line separator is \n and records going over multiple lines have <CR> as separator. below is example from one file.
1|ABC DEF|100|10
2|PQ
RS
T|200|20
3| UVWXYZ|300|30
4| GHIJKL|400|40... (7 Replies)
Hello,
My apache user generate one file :
# ls -lsa /tmp/reference_file.csv
76 -rwxrwxrwx 1 apache apache 69921 Aug 16 14:14 tmp/reference_file.csv
the user and the group belong to apache, but when i am trying to change it :
su -l apache -s /bin/bash
-bash-3.00$ whoami
apache... (7 Replies)
Discussion started by: cterra
7 Replies
LEARN ABOUT CENTOS
chown
CHOWN(1) User Commands CHOWN(1)NAME
chown - change file owner and group
SYNOPSIS
chown [OPTION]... [OWNER][:[GROUP]] FILE...
chown [OPTION]... --reference=RFILE FILE...
DESCRIPTION
This manual page documents the GNU version of chown. chown changes the user and/or group ownership of each given file. If only an owner
(a user name or numeric user ID) is given, that user is made the owner of each given file, and the files' group is not changed. If the
owner is followed by a colon and a group name (or numeric group ID), with no spaces between them, the group ownership of the files is
changed as well. If a colon but no group name follows the user name, that user is made the owner of the files and the group of the files
is changed to that user's login group. If the colon and group are given, but the owner is omitted, only the group of the files is changed;
in this case, chown performs the same function as chgrp. If only a colon is given, or if the entire operand is empty, neither the owner
nor the group is changed.
OPTIONS
Change the owner and/or group of each FILE to OWNER and/or GROUP. With --reference, change the owner and group of each FILE to those of
RFILE.
-c, --changes
like verbose but report only when a change is made
-f, --silent, --quiet
suppress most error messages
-v, --verbose
output a diagnostic for every file processed
--dereference
affect the referent of each symbolic link (this is the default), rather than the symbolic link itself
-h, --no-dereference
affect symbolic links instead of any referenced file (useful only on systems that can change the ownership of a symlink)
--from=CURRENT_OWNER:CURRENT_GROUP
change the owner and/or group of each file only if its current owner and/or group match those specified here. Either may be omit-
ted, in which case a match is not required for the omitted attribute
--no-preserve-root
do not treat '/' specially (the default)
--preserve-root
fail to operate recursively on '/'
--reference=RFILE
use RFILE's owner and group rather than specifying OWNER:GROUP values
-R, --recursive
operate on files and directories recursively
The following options modify how a hierarchy is traversed when the -R option is also specified. If more than one is specified, only the
final one takes effect.
-H if a command line argument is a symbolic link to a directory, traverse it
-L traverse every symbolic link to a directory encountered
-P do not traverse any symbolic links (default)
--help display this help and exit
--version
output version information and exit
Owner is unchanged if missing. Group is unchanged if missing, but changed to login group if implied by a ':' following a symbolic OWNER.
OWNER and GROUP may be numeric as well as symbolic.
EXAMPLES
chown root /u
Change the owner of /u to "root".
chown root:staff /u
Likewise, but also change its group to "staff".
chown -hR root /u
Change the owner of /u and subfiles to "root".
GNU coreutils online help: <http://www.gnu.org/software/coreutils/> Report chown translation bugs to <http://translationproject.org/team/>
AUTHOR
Written by David MacKenzie and Jim Meyering.
COPYRIGHT
Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO chown(2)
The full documentation for chown is maintained as a Texinfo manual. If the info and chown programs are properly installed at your site,
the command
info coreutils 'chown invocation'
should give you access to the complete manual.
GNU coreutils 8.22 June 2014 CHOWN(1)