Bakunin's replacement code in post#4 is portable but still creates a new inode for the input file ("/path/to/file")
This not only denotes a repair of the original owner/group/permissions, it will make a previously hard-linked file stand-alone, and this damage cannot be repaired.
Also GNU sed -i (and perl -i) cannot preserve the original linkage.
If we are going for a real improvement then we avoid the mv command!
The cp command preserves the original inode (owner/group/permissions and linkage) - only the timestamp changes, and that's pretty correct.
This User Gave Thanks to MadeInGermany For This Post:
I am having a problem executing a sed substitute in a file. I have tried alot of different things I found in previous posts, however non seem to work.
I want to substitute this in $FILE:
VALUE=33.4
In the script I have tried the following:
prev=$(awk -F"=" '{ print $2 }' $FILE )
new=$(echo... (16 Replies)
im having trouble doing this:
i have a variable with 2 characters repeating e.g. aababbbaaaababaabbaabbba
is there a way i can search the variable for a's and b's and then change a's to b's and b's to a's?
im guessing its like getting the 1's compliment of the string
im doing this in... (2 Replies)
Hi All,
I'm currently using SED to make various changes to some .xml files I'm working on, but I'm stuck on this particular problem.
I want to remove '<placeholder>element-name</placeholder>' from the following:
<heading>Element <placeholder>element-name</placeholder> not... (2 Replies)
i am a newbie to shell script,so i want a kshell script in which i need to check for a particular character inside a file through conditional looping(like if ,case,while)and if that character exists ,then substitute a given character to that character.
consider a file test.txt,inside the file... (1 Reply)
I am trying to get rid of some ending tags but I run into some problems.
Ex.
How are you?</EndTag><Begin>It is fine.</Begin><New> Just about
I am trying to get rid of the ending tags, starts with </ and ending with >. (which is </EndTag> and </Begin>)
I tried the following
sed... (2 Replies)
I'm using sed to perform a simply search and replace. The typical data is:
<fig><image href="Graphics/BAV.gif" align="left" placement="break"
I need to replace the value in the first set of quotes, keeping the remainder of the line the same. Thus:
<fig><image href="NEW_VALUE" align="left"... (3 Replies)
Hi All,
Here is what I'm trying to do with sed:
Input File:
somechangeVariable1=Something I would like to change
somechangeVariable2=Something else I would like to change
...
Output File:
somechangeVariable1=Something I would like to different
somechangeVariable2=Something else I would... (6 Replies)
Is there a way to substitute the URL-encoding references of ( & and ` ) with their actual appearance? for example....
%26 is &
say I want to convert every %26 in my file to &.....
awk '{gsub(/%26/,"&");print}'
Is there a way to do this?
I also want to be able to convert ` too! (3 Replies)
Hi ,
I have input file like below
Hi this is "vinoth".
Hi happy to work with 'unix'
USA(united states of America)
My script variables are below :
Dquote=Ộ
Squote=&#$567
Obrac=&^986
Cbrac=&^745
I want to read the variables in my SED command to replace the double quote,single... (9 Replies)
I am trying to do what I thought should be a simple substitution, but I can't get it to work.
File:
Desire output:
I thought I'd start with a sed command to remove the part of the header line preceding the string "comp", then go on to remove the suffix of the target string (e.g. ":3-509(-)"),... (3 Replies)
Discussion started by: pathunkathunk
3 Replies
LEARN ABOUT ULTRIX
chown
chown(8) System Manager's Manual chown(8)Name
chown - change owner and, optionally, group
Syntax
/etc/chown [ -fR ] owner[.group] file...
Description
The command changes the owner and, optionally, group for one or more files and directories. The value for file can be a full or partial
path. The value for owner can be either a decimal UID or a login name found in the password file. The value for group can be either a
decimal GID or a group name found in the group file.
Only the superuser can change the ownership of a file. The superuser can also change the group of a file. The owner of a file can only
change the group, but the owner must be a member of any group specified.
Options-f Inhibits display of errors that are returned when cannot change the owner or group of the specified files.
-R Causes to recursively descend any directories subordinate to file and to set the owner, group, or both for each file encountered.
When symbolic links are encountered, changes the owner and group for the link file itself but does not traverse the path associated
with the link. The option is useful only when file is a directory that is not empty.
Examples
Change the owner of to ecbell:
/etc/chown ecbell myfile
Change the owner of to craig and group of to admin:
/etc/chown craig.admin myfile
Change the owner to richart and group to eng for the directories and and for all files and directories on any levels subordinate to and
/etc/chown -R richart.eng projecta projectb
Files
See Also
chgrp(1), chown(2), group(5), group(5yp), passwd(5), passwd(5yp)chown(8)