How can I run a here document on just one line? I ask, because I need to issue it from C++ as a system() or similar command and for security reasons I don't want to write out a shell script file from the program and run it.
What security reasons are these? A plaintext password is a plaintext password no matter how you cut it. Shoving it inside a C program does not help. Just run strings on it and bam, they have your password.
You can protect it with chmod -r, of course. But that's only protection from lower users and not any protection from anyone who needs to run the program. And you could've done that for a shell script anyway.
Since you're doing it in C, you can put newlines wherever you please with \n, effectively making a multi-line string. Also note that if you put "two" "strings" in a row, they become "twostrings", so you can organize it nicely by line and still have it one giant string.
Hi Guys,
I am new to awk and sed, i am working multiline document, i want to make make that document into SINGLE lines based on occurace of string "dwh".
here's the sample of my problem..
dwh123 2563 4562 4236 1236 78956 12394 4552 dwh192 2656 46536 231326 65652 6565 23262 16625623... (5 Replies)
i m trying to find the answers of a past year exam questions , i m sure it ll be very easy for u guys , this is not a hw assignment or somth. i just wanna be sure of right answers .
write a single instruction to perform each of the following tasks:
(u r allowed to use c shell, and u can use... (2 Replies)
here is what i want to achieve.. i have a file with below contents
cat fileName
blah blah blah
.
.DROP this
REJECT that
.
--sport 7800 -j REJECT --reject-with icmp-port-unreachable
--dport 7800 -j REJECT --reject-with icmp-port-unreachable
.
.
.
more blah blah blah
--dport 3306... (14 Replies)
I am trying to issue the time command on a program so I can see execution times but it is returning all zeroes. Like this:
time pdriver arg1 arg2
0.000u 0.000s 0:00.00 0.0% 0+0k 0+0io 0pf+0w
"0+0k 0+0io 0pf+0w" --> The "0+0io" may change sometimes to a different number.
How can I run the... (2 Replies)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
A common problem arising in games and simulations is to generate a random arrangements of integers from 1 to N.... (5 Replies)
myenv.sh script sets LOG_DIR variable.
I can run the script and echo the variable in a single line as:
# First set LOG_DIR to some dummy 'NONE' value
$ export LOG_DIR="NONE"
$ echo ${LOG_DIR}
NONE
$ cat /tmp/bin/myenv.sh
export LOG_DIR="/tmp/log"
#The below command doesn't show the... (2 Replies)
Regarding copy/pasted text of copyright-free book from archive.org (link below), in attempt to expand single-line-break paragraph text (not section headings or paragraph breaks) to wider right margin, Justify or Wrap in LIbreOffice is not working, and Find/Replace the paragraph mark ($) wraps all... (2 Replies)
Discussion started by: p1ne
2 Replies
LEARN ABOUT PHP
upsrw
UPSRW(8) NUT Manual UPSRW(8)NAME
upsrw - UPS variable administration tool
SYNOPSIS
upsrw ups
upsrw -h
upsrw -s variable [-u username] [-p password] ups
DESCRIPTION
upsrw allows you to view and change the read/write variables inside your UPS. It sends commands via the server upsd(8) to your driver,
which configures the hardware for you.
The list of variables that allow you to change their values is based on the capabilities of your UPS equipment. Not all models support this
feature. Typically, cheaper hardware does not support any of them. Run upsrw with a UPS identifier to see what will work for you.
OPTIONS -h
Display the help message.
-s variable
Specify the variable to be changed inside the UPS. For unattended mode such as in shell scripts, use the format VAR=VALUE to specify
both the variable and the value, for example:
-s input.transfer.high=129
Without this argument, upsrw will just display the list of the variables and their possible values.
Some variables are strings, and can be set to any value within the length limit. Others are enumerated types and can only be set to one
of those values. Others may be within an allowed range of values. Refer to the list to know what's available in your hardware.
-u username
Set the NUT username for the connection to the server. This is optional, and you will be prompted for this when using the -s option if
you don't specify -u on the command line. NUT usernames are defined in upsd.users(5), and are not linked to system usernames.
-p password
Set the password to authenticate to the server. This is also optional like -u, and you will be prompted for it if necessary.
ups
View or change the settings on this UPS. The format for this option is upsname[@hostname[:port]]. The default hostname is "localhost".
UNATTENDED MODE
If you run this program inside a shell script or similar to set variables, you will need to specify all of the information on the command
line. This means using -s VAR=VALUE, -u and -p. Otherwise it will put up a prompt and your program will hang.
This is not necessary when displaying the list, as the username and password are not required for read-only mode.
DIAGNOSTICS
upsrw can't set variables on your UPS unless you provide a valid username and password. If you get "access denied" errors, make sure that
your upsd.users(5) has an entry for you, and that the username you are using has permissions to SET variables.
HISTORY
This program used to be called upsct2, which was ambiguous and confusing.
SEE ALSO upsd(8), upscmd(8)
Internet resources:
The NUT (Network UPS Tools) home page: http://www.networkupstools.org/
Network UPS Tools 05/24/2012 UPSRW(8)