Hi,
I have a shell script with code
. perf.env
cd $QRY_DIR
for SHELL_FILE in sql1
do
export SNAME=$SHELL_FILE
${SCRIPT_DIR}/perf_qry.sh ${SPOOL_DIR} ${DB_ENVNAME} ${NAME} &
RC=$(expr ${RC:-0} + $? )
sleep 60
if
then
echo sysdate>test1
echo query1.txt>>test1
grep -i... (0 Replies)
Hi,
I have a shell script with code
. perf.env
cd $QRY_DIR
for SHELL_FILE in sql1
do
export SNAME=$SHELL_FILE
${SCRIPT_DIR}/perf_qry.sh ${SPOOL_DIR} ${DB_ENVNAME} ${NAME} &
RC=$(expr ${RC:-0} + $? )
sleep 60
if
then
echo sysdate>test1
echo query1.txt>>test1
grep -i... (6 Replies)
Hi,
I am a Unix Newbie :D.
I want to write a program such a way that:
Whenever number of filedescriptors opened by a process change, it should execute some commands (eg: write total number of FDs at that point of time to a file).
I dont want to poll '/proc/<pid>/fd' at regular intervals... (3 Replies)
I have a korn shell script that executes a function which is stored in a common library. In the function there is obviously some code. Here is the line of code in the function in question:
temp=`echo $status_cnt|tr -d `
When the shell script executes with set -x, I'm seeing that on most... (2 Replies)
I have a program dnapars
I execute the program from command line as following:
./dnapars
The program then prompts me some message as a user menu from where I have to select a series of options in the order R U Y R. And then I copy the output file (outfile) in another result file.
I wrote the... (3 Replies)
I am trying to run SSH , mkdir and other unix commands using Perl CGI. But i am not able to Execute these commands.
Please help me out !!!!
SSH and mkdir is necessity for me.
I will be thankful to you...!!!!!
I am trying like:
In perl CGI file i am writing like: @list = `ssh... (28 Replies)
I need to run few commands in a ksh script sequentially.
Some of the commands are jobs submitted to the server and the consecutive commands are dependent on the completion of the jobs submitted to the server.
It works if i separate the commands into different files like this
#!/bin/ksh... (1 Reply)
I have a question:
Where would I put the Command line (of any command) so that it executes every time I log on? Where would I put it if I want it to execute every time I start a new shell? (5 Replies)
Hi all,
I have a problem with ftp execution within unix environment.
I'd like to get files on remote and delete them later, but here is too crowd so I can accidentally delete some files. Can I delete only the files I can get to the local folder? I can ask this question with a different... (14 Replies)
Discussion started by: attillam
14 Replies
LEARN ABOUT CENTOS
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 /etc/smrsh, 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 characters
``', `<', `>', `;', `$', `(', `)', `
' (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 ``/etc/smrsh/vacation''.
System administrators should be conservative about populating the /etc/smrsh directory. For example, a reasonable additions is vaca-
tion(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
/etc/smrsh directory. Note that this does not restrict the use of shell or perl scripts in the sm.bin directory (using the ``#!'' syntax);
it simply disallows 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).
FILES
/etc/smrsh - directory for restricted programs
SEE ALSO sendmail(8)
$Date: 2004/08/06 03:55:35 $ SMRSH(8)