Sometimes it is handy to protect long scripts in C++.
The following syntax works fine for simple commands:
Unfortunately for there are problems for:
1d arrays: array=(a1 a2 a3)
error message: sh: 12: Syntax error: "(" unexpected
and
variables of variables:
error message: warning: unknown escape sequence: '\$' [enabled by default]
Please excuse my ignorance ... Is there a solution? What are the limitations of the aforementioned C++. Calling a Bash script from C++ is not the optimum solution for my case. The script needs to be inside the .cpp
Ummm can anybody help me with this one?
Its prob quite simple.
I bascially have a file name say J1x2x3x7.dat
Im using the file name as a variable in a bash script. Want I want to do is extract most of the file name and make it a new variable expect with say one of the number now a... (2 Replies)
Hello everybody,
I am having problem in converting byte array variables to Hexa String variables for Linux. I have done, converting byte array variables to Hexa String variables for Windows but same function doesn't work for linux. Is there any difference in OS ? The code for Windows is given... (2 Replies)
Hi All,
I have a problem assigning variables to script.I have a script in which i have a while loop now i have to assign some values obtained to an array which will be used later in the script.Can anyone help how to do that.
At present my scrot looks like:
co=0
pco=0
co=`cat /tmp/highcpu... (4 Replies)
I have two arrays values
aname = first
aname = last
I would like to assign a variable to both arrays seperated by a comma
fname=(aname","aname)
that example does not work but that's something I would like to accomplish.
Is it possible to assign a printf output to a variable.
... (2 Replies)
Okay, I've made threads on extracting fields and comparing strings in separate files in .csv's. I've written the following code with intentions of learning more.
I just want this one question answered: How can I assign fields from a file(comma separated) to variables?
My goal is to check... (0 Replies)
I am writing some scripts using bash and am wondering if there is a better way to perform the following set of formatting variables.
s1=" "
s2=" "
s3=" "
s4=" "
s5=" "
s6=" "
s7=" "
s8=" "
frmt_titl="${bYl}%s${nClor}\n"
frmt1_titl="${s1}$frmt_titl"... (10 Replies)
I have a bash script with some functions as below and am wondering if I can use the variables declared in setup in the other functions and in the rest of the bash script.
setup(){
none=0; low=1; medium=2; high=3; debug=4
var1="red"
var2="fred"
}
create_basemap() {
... (7 Replies)
Hi All,
i have a requirement where i have to run a script with at least 25 arguements and position of arguements can also change. the unapropriate way is like below. can we achieve this in more good and precise way??
#!/bin/ksh
##script is sample.ksh
age=$1
gender=$2
class=$3
.
.
.... (3 Replies)
Trying to do so
echo "111:222:333" |awk -F: '{system("export TESTO=" $2)}'But it doesn't work (2 Replies)
Discussion started by: urello
2 Replies
LEARN ABOUT DEBIAN
smrsh
SMRSH(8) System Manager's Manual SMRSH(8)NAME
smrsh - restricted shell for sendmail
SYNOPSIS
smrsh -c command
DESCRIPTION
The smrsh program is intended as a replacement for sh for use in the ``prog'' mailer in sendmail(8) configuration files. It sharply limits
the commands that can be run using the ``|program'' syntax of sendmail in order to improve the over all security of your system. Briefly,
even if a ``bad guy'' can get sendmail to run a program without going through an alias or forward file, smrsh limits the set of programs
that he or she can execute.
Briefly, smrsh limits programs to be in a single directory, by default /usr/adm/sm.bin, allowing the system administrator to choose the set
of acceptable commands, and to the shell builtin commands ``exec'', ``exit'', and ``echo''. It also rejects any commands with the charac-
ters ``', `<', `>', `;', `$', `(', `)', `
' (carriage return), or `
' (newline) on the command line to prevent ``end run'' attacks. It
allows ``||'' and ``&&'' to enable commands like: ``"|exec /usr/local/bin/filter || exit 75"''
Initial pathnames on programs are stripped, so forwarding to ``/usr/ucb/vacation'', ``/usr/bin/vacation'', ``/home/server/mydir/bin/vaca-
tion'', and ``vacation'' all actually forward to ``/usr/adm/sm.bin/vacation''.
System administrators should be conservative about populating the sm.bin directory. For example, a reasonable additions is vacation(1),
and the like. No matter how brow-beaten you may be, never include any shell or shell-like program (such as perl(1)) in the sm.bin direc-
tory. Note that this does not restrict the use of shell or perl scripts in the sm.bin directory (using the ``#!'' syntax); it simply dis-
allows execution of arbitrary programs. Also, including mail filtering programs such as procmail(1) is a very bad idea. procmail(1)
allows users to run arbitrary programs in their procmailrc(5).
COMPILATION
Compilation should be trivial on most systems. You may need to use -DSMRSH_PATH="path" to adjust the default search path (defaults to
``/bin:/usr/bin:/usr/ucb'') and/or -DSMRSH_CMDDIR="dir" to change the default program directory (defaults to ``/usr/adm/sm.bin'').
FILES
/usr/adm/sm.bin - default directory for restricted programs on most OSs
/var/adm/sm.bin - directory for restricted programs on HP UX and Solaris
/usr/libexec/sm.bin - directory for restricted programs on FreeBSD (>= 3.3) and DragonFly BSD
SEE ALSO sendmail(8)
$Date: 2004/08/06 03:55:35 $ SMRSH(8)