I have a configuration file that when a certain script runs in updates. I want to use sed and can't seem to get the syntax right.
A line from the configuration file looks like:
DATE=20040909 12:00:10
When the script is run I want to change the date and time, i.e. removing the previous... (7 Replies)
hello!
I have a few sed commands
sed '/^$/d' < $1 > tmp.t
sed '/^ \{3,\}/d' < tmp.t > tmp1.txt
.....
how can I write them in a single line?
sed '/^$/d' < $1 > | '/^ \{3,\}/d' < $1 > tmp1.txt
any idea?
thanks. (5 Replies)
I would like to change the lines:
originalline1
originalline2
to:
originalline1new
originalline1newline
originalline2new
originalline2newline
To do this, id like to combine the commands:
sed 's/^/&new/g' file > newfile1
and
sed '/^/ a\\
newline\\
\\ (2 Replies)
Hi there, I need to be able to put the hostid of my box into a file (replacing the text "enter_hostid_here" so i tried
sed -e 's/enter_hostid_here/`hostid`/g' inputfile > outputfile
but it takes the `hostid` literally as text .....how can I get this info into the file (ideally in a single... (2 Replies)
Hello
I need to run some sed commands but it involves "/" in the substitute or delete, any ideas how I get round the problem.
Example:
cat file1.txt | sed -e '/</Header>/d' > file2.txt
This errors due to the forward slash before the Header text.
Thanks (3 Replies)
Hi,
I've a shell that uses two sed commands to tailor a file.
sed 's/ */ /g' | sed 's/%/%%/g'
Is it possible to merge this in to a single sed?
Thanks! (2 Replies)
Hello, would you please help me with why my SED command file is outputting the entire input file instead of only the text that I'm trying to block?
cat testfile
O 111111111-00
DUE-DATE
METHOD:
FREQUENCY:
O 222222222-00
DUE-DATE
METHOD:
FREQUENCY:
O 333333333-02
DUE-DATE
METHOD:... (4 Replies)
Hi,
I get the following response by gphoto2 and I would like to substract the index number of the current item. In this case 3.
gphoto2 --get-config /main/imgsettings/iso
Label: ISO Speed
Type: RADIO
Current: 200
Choice: 0 100
Choice: 1 125
Choice: 2 160
Choice: 3 200
Choice: 4 250
..... (11 Replies)
Hi!
I have a text file which I would like to sort, summarise and count between the pattern "--Current Database"
This is my text file:
-- Current Database: `city`
New York
Chicago
Las Vegas
San Francisco
-- Current Database: `country`
United States
Mexico
Portugal
Mexico
Mexico... (9 Replies)
Discussion started by: mac-arrow
9 Replies
LEARN ABOUT X11R4
setuid
SETUID(1) General Commands Manual SETUID(1)NAME
setuid - run a command with a different uid.
SYNOPSIS
setuid username|uid command [ args ]
DESCRIPTION
Setuid changes user id, then executes the specified command. Unlike some versions of su(1), this program doesn't ever ask for a password
when executed with effective uid=root. This program doesn't change the environment; it only changes the uid and then uses execvp() to find
the command in the path, and execute it. (If the command is a script, execvp() passes the command name to /bin/sh for processing.)
For example,
setuid some_user $SHELL
can be used to start a shell running as another user.
Setuid is useful inside scripts that are being run by a setuid-root user -- such as a script invoked with super, so that the script can
execute some commands using the uid of the original user, instead of root. This allows unsafe commands (such as editors and pagers) to be
used in a non-root mode inside a super script. For example, an operator with permission to modify a certain protected_file could use a
super command that simply does:
cp protected_file temp_file
setuid $ORIG_USER ${EDITOR:-/bin/vi} temp_file
cp temp_file protected_file
(Note: don't use this example directly. If the temp_file can somehow be replaced by another user, as might be the case if it's kept in a
temporary directory, there will be a race condition in the time between editing the temporary file and copying it back to the protected
file.)
AUTHOR
Will Deich
local SETUID(1)