In more complex expressions, where everything in quotes is too cumbersome, the shell variable references should be in quotes nevertheless (where the quotes must appear in the shell context, so the shell substitutes them and they do not appear in the sed context)
This User Gave Thanks to MadeInGermany For This Post:
Dear all,
How can I amend the following command to use variable inside 'sed' ?
str=`sed -e 's/orig_string/${var}/g' ${sourcefile}`
Thanks,
Rocky (3 Replies)
Hi, i have a problem with sed
i want to substitude a / to ",""," in the following pattern: number/number
so if u have a file which contains -> "Streetname 9/8/6" it shouldn't substitude anything, only if it is "Streetname 9/6" to "Streetname 9","","6".
Maybe you can help me, i try so many... (5 Replies)
Hi,
im having problem creating a loop using my code: aside from the fact that the 1st variable (VAR) does not increment, it loops more than the expected output.
for sample purposes, test csv contains 3 lines.
#get number of lines in the file
lines=$( wc -l < test.csv )
... (5 Replies)
Hi,
i have written a script. it collects data based on the sql queries executed by it. i have multiple output files. after the output file is made i need to do some cosmetic changes in the files and then store them. i am unable to use sed conditions inside the loop.
see below code for... (3 Replies)
I have a file (test.dat) which contains data like this
459|199811047|a |b |shan
kar|ooty|
460|199811047|a |bv |gur
u|cbe|
but I need it like:
459|199811047|a |b |shankar|ooty|
460|199811047|a |b |guru|cbe|
While reading the data from this file, I don't want to remove newline from the end of... (4 Replies)
My need is :
Want to change
docBase="/something/something/something"
to
docBase="/only/this/path/for/all/files"
I have some (about 250 files)xml files.
In FileOne it contains
<Context path="/PPP" displayName="PPP" docBase="/home/me/documents" reloadable="true" crossContext="true">... (1 Reply)
Problem: Need to read contents from a file and use that value inside sed as avariable. sample code below. THe below code replaces contents inside file123 for matched string with "$x" value only. but we want the value of x which is read from TextFile.txt to go in there.
cat TextFile.txt|while... (3 Replies)
What I want to do is delete everything upto the last underscore (_) in column 2.
awk '{ $2=$(echo $2 | sed 's/.*_//'); print $0}'
Sed works fine if I echo the string into it, this doesnt work inside awk. What am I doing wrong?
Similarly, how do I store the substring starting with a... (4 Replies)
Hi guys
Let me at first describe the whole thing that I'm trying to do. Lets say I have 100 files like the following one.
Ow 1230 16.000000 -0.834000 16.083957
1.751652398 -17.20094528 -4.450623277
Hw 1231 ... (6 Replies)
$string="test.binary.value";
$toggle="test.binary.value=true";
host=test.server.com
my $returnCode = system ( "ssh $host 'cp -p /tmp/testfile /tmp/testfile.bkup; sed -i 's/\$string.*/\$toggle/g' /tmp/testfile'" );
cat testfile
test.binary.value=false
Scenario: I am trying to... (3 Replies)
Discussion started by: Tuxidow
3 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)