We currently take files (via FTP) off of a mainframe and save them as a text file on our server. This is done via a script. The next thing that is done to that text file is it gets zipped (using ZIP). This all works fine, but it doesn't appear that ZIP (the free version) has any way to password... (2 Replies)
I'm not sure if this is the right forum for this or not but we use a program called "Password Safe" to store the many root passwords we have for our Unix system.
Now we are being called out by our security team to prove that this is a safe program to use. So far I have been able to determine... (1 Reply)
Hi,
I have usernames and passwords (to connect oracle DB) buried in so many shell scripts.
We want to externalize all usernames and passwords from those shell scripts and encrypt them and keep them in a file.
So far I found two choices,
1) Use some encryption algorithms like (RC5/MD5) to... (5 Replies)
Hi all,
I have a server in the office that we connect to via telnet. Can anyone explain please how i can encrypt the password so it cannot be picked up in plain text by sniffing software like WireShark, etc.?
I'm not very experienced in Unix, so any ideas or even links would be great.
... (5 Replies)
:DHi i am preparing a script to connect to oracle from solaris....
now i want that no one is able to see the password in the script.
is it possible...please help
Regards
Ankurk (3 Replies)
In unix, i know the password encrypt by using salt
But how does it work? And how windows protect its password?
Thank you for helping in advance (5 Replies)
Hi, I have a Java app that looks for some parameters in a .properties file such as username and password. However I don't want to leave the password in a text file and I can't modify the app...
Does anyone have some idea about how to encrypt/hide/etc the password so it's not freely accessible... (1 Reply)
if I change my password on two different servers, using the same string but the encrypted password in /etc/passwd look different.
If I copy an entry from one /etc/password to the other server. I can still log in to both servers using the same password. Only now both /etc/passwd entries are... (2 Replies)
I am working on a script where we are using sqlplus command to connect to Oracle DB. But the schemaname and password used for sqlplus authentication, have to be hardcoded in the script.
DBconnection=scott/tiger@SID
sqlplus $DBconnection
Here any user who reads the script can read the... (1 Reply)
Discussion started by: max29583
1 Replies
LEARN ABOUT MOJAVE
subst
subst(n) Tcl Built-In Commands subst(n)
__________________________________________________________________________________________________________________________________________________NAME
subst - Perform backslash, command, and variable substitutions
SYNOPSIS
subst ?-nobackslashes? ?-nocommands? ?-novariables? string
_________________________________________________________________DESCRIPTION
This command performs variable substitutions, command substitutions, and backslash substitutions on its string argument and returns the
fully-substituted result. The substitutions are performed in exactly the same way as for Tcl commands. As a result, the string argument
is actually substituted twice, once by the Tcl parser in the usual fashion for Tcl commands, and again by the subst command.
If any of the -nobackslashes, -nocommands, or -novariables are specified, then the corresponding substitutions are not performed. For
example, if -nocommands is specified, command substitution is not performed: open and close brackets are treated as ordinary characters
with no special interpretation.
Note that the substitution of one kind can include substitution of other kinds. For example, even when the -novariables option is speci-
fied, command substitution is performed without restriction. This means that any variable substitution necessary to complete the command
substitution will still take place. Likewise, any command substitution necessary to complete a variable substitution will take place, even
when -nocommands is specified. See the EXAMPLES below.
If an error occurs during substitution, then subst will return that error. If a break exception occurs during command or variable substi-
tution, the result of the whole substitution will be the string (as substituted) up to the start of the substitution that raised the excep-
tion. If a continue exception occurs during the evaluation of a command or variable substitution, an empty string will be substituted for
that entire command or variable substitution (as long as it is well-formed Tcl.) If a return exception occurs, or any other return code is
returned during command or variable substitution, then the returned value is substituted for that substitution. See the EXAMPLES below.
In this way, all exceptional return codes are "caught" by subst. The subst command itself will either return an error, or will complete
successfully.
EXAMPLES
When it performs its substitutions, subst does not give any special treatment to double quotes or curly braces (except within command sub-
stitutions) so the script
set a 44
subst {xyz {$a}}
returns "xyz {44}", not "xyz {$a}" and the script
set a "p} q {r"
subst {xyz {$a}}
returns "xyz {p} q {r}", not "xyz {p} q {r}".
When command substitution is performed, it includes any variable substitution necessary to evaluate the script.
set a 44
subst -novariables {$a [format $a]}
returns "$a 44", not "$a $a". Similarly, when variable substitution is performed, it includes any command substitution necessary to
retrieve the value of the variable.
proc b {} {return c}
array set a {c c [b] tricky}
subst -nocommands {[b] $a([b])}
returns "[b] c", not "[b] tricky".
The continue and break exceptions allow command substitutions to prevent substitution of the rest of the command substitution and the rest
of string respectively, giving script authors more options when processing text using subst. For example, the script
subst {abc,[break],def}
returns "abc,", not "abc,,def" and the script
subst {abc,[continue;expr {1+2}],def}
returns "abc,,def", not "abc,3,def".
Other exceptional return codes substitute the returned value
subst {abc,[return foo;expr {1+2}],def}
returns "abc,foo,def", not "abc,3,def" and
subst {abc,[return -code 10 foo;expr {1+2}],def}
also returns "abc,foo,def", not "abc,3,def".
SEE ALSO
Tcl(n), eval(n), break(n), continue(n)
KEYWORDS
backslash substitution, command substitution, variable substitution
Tcl 7.4 subst(n)