losing /usr/bin directory Post: 302316078

9 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

/bin/sh: /usr/bin/vi: No such file or directory when doing crontab

I just set up an ftp server with Red Hat 5.2. I am doing the work, I'm baby stepping, but it seems like every step I get stuck. Currently, I'm trying to set up a crontab job, but I'm getting the following message: /bin/sh: /usr/bin/vi: No such file or directory. I see that vi exists in /bin/vi,...

2. UNIX for Dummies Questions & Answers

Difference between /bin, /usr/bin, /sbin ?

Hi All, Can somebody tell me the difference between /bin, /usr/bin, /sbin ? Thanx in advance, Saneesh Joseph

3. Solaris

How do I link ld in /usr/ucb/ to /usr/ccs/bin?

Hi all, below is the problem details: ora10g@CNORACLE1>which ld /usr/ucb/ld ora10g@CNORACLE1>cd /usr/ccs/bin ora10g@CNORACLE1>ln -s /usr/ucb/ld ld ln: cannot create ld: File exists ora10g@CNORACLE1> how to link it to /usr/ccs/bin?

4. UNIX for Advanced & Expert Users

#!/usr/bin/env : perl no such file or directory

hi i have some perl scripts with shebang line as (#! /usr/bin/env perl ) instead of actual absolute path of perl ( i know why its that way ) everything works fine from command line , the problem is when i am trying to run those scripts from web ( local web tool ) it throws error as /usr/bin/env :...

5. UNIX for Dummies Questions & Answers

Alias /usr/bin to /bin in profile

Hi! All the basic linux commands, ie. echo, find, etc, are located in /bin. I have a couple of programs that have these commands pointed towards /usr/bin, ie, /usr/bin/echo (even though the actual 'echo' command is in /bin). How can I alias or redirect or link the /usr/bin to /bin just for this...

6. OS X (Apple)

When to use /Users/m/bin instead of /usr/local/bin (& whats the diff?)?

Q1. I understand that /usr/local/bin means I can install/uninstall stuff in here and have any chance of messing up my original system files or effecting any other users. I created this directory myself. But what about the directory I didn't create, namely /Users/m/bin? How is that directory...

7. Solaris

What is the difference between xpg4/bin and usr/bin?

Hi Experts, I found that the same commands(sort, du, df, find, grep etc.) exists in both dir. What is the difference to use them? i.e: to use xpg4/bin/grep and usr/bin/grep My OS version is SunOS 5.10 Regards, Saps

8. BSD

FreeBSD: /usr/bin/ld not looking in /usr/local/lib

I'm not sure if this is the default behavior for the ld command, but it does not seem to be looking in /usr/local/lib for shared libraries. I was trying to compile the latest version of Kanatest from svn. The autorgen.sh script seems to exit without too much trouble: $ ./autogen.sh checking...

9. Shell Programming and Scripting

Getting error: /usr/bin/env: ruby: No such file or directory

Hi, I installed ruby using rvm with root user on Linux. Now i m trying the below command as a non root user with sudo privileges. sudo /usr/local/rvm/rubies/ruby-2.2.5/bin/gem install passenger I get the below error: I had even reset the path for both gem as well as ruby as you...

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)