Expanding on what wisecracker said, the commands:
read commands from file.sh and execute them in the current shell execution environment. When the commands from file.sh are completed, any side effects from running those commands (such as setting shell variables) are still in effect in the current shell.
The command:
creates a new shell execution environment and runs the commands from file.sh in that new environment. When the commands in file.sh have completed, the new shell execution environment terminates and nothing set in that environment affects the current shell execution environment of the shell that invoked ./file.sh.
This User Gave Thanks to Don Cragun For This Post:
Hi there Everyone,
I need some help/information/advise for the following questions:
I'm writing the following script:
#Beginning of the script
ftp -n <source server> > ${log_dir}/test_get.log << END
user <user_name>@<IP Address> <passwd>
verbose
bin
!echo "'List Files Before Getting... (3 Replies)
This is shell programming assignment.
It needs to create a file called .std_dbrc contains
STD_DBROOT=${HOME}/class/2031/Assgn3/STD_DB
(which includes all my simple database files)
and I am gonna use this .std_dbrc in my script file (read the data from the database files)
like this: .... (3 Replies)
hi experts
lets say my format file is B
B
=========
column no,name,type,length
1,ee,N,12
3,hj,N.4
4,kl,N,5
source file
========
d e f g h i
5 8 9 7 6 5
1 3 4 5 6 6 (2 Replies)
Hi experts,Please help me for the below requirement. i have a source file.(lets say contains 50 columns). I am extarcting five columns from the source file by using pattern file. for example input file:--------a,b,c,d,"a,g","v b",s,koutputfile=======a,"a,g","v b",s,kThanks in advance subhendu (2 Replies)
hi all,
Please help me with rsync.
I configured rsync to preserve timestamps using the -a option.
When i renamed fileA to fileB on source machine I have to copies at the backup server.
The aim is to keep the most recent file.
fileA & fileB has same contents.
When i renamed fileB to... (2 Replies)
I need to
"Ensure that when you download libchat.a from the VLE you have copied it to the same folder on ius as your source files. You then refer to the library (and the libraries it needs) with:
gcc -o outputfile sourcefile.c -L. -lchat -lsocket -lnsl"
But I have no idea what this means! (I... (2 Replies)
Hi all,
I'm pretty new to Shell scripting and I need some help to split a source text file into multiple files. The source has a row with pattern where the file needs to be split, and the pattern row also contains the file name of the destination for that specific piece. Here is an example:
... (2 Replies)
Hello,
I have to write a script to compare the sum of the amount fields in a source file and the amount field in another file.
details are:
based on the name of the source file (say SALES as an example), a file already available in a path will be grabbed (say SALES_ParmFile) and this file... (4 Replies)
Hi,
I am trying to find out whether there are any Unix utilities that compares folders, files and contents within the file and provides a comprehensive report. The comparison can be against base version of a folder and file with content. Can you please let me know of such a utility?
Thanks,... (6 Replies)
Discussion started by: Sripathi_ks
6 Replies
LEARN ABOUT OPENSOLARIS
restricted_shell
rsh(1M) System Administration Commands rsh(1M)NAME
rsh, restricted_shell - restricted shell command interpreter
SYNOPSIS
/usr/lib/rsh [-acefhiknprstuvx] [argument]...
DESCRIPTION
rsh is a limiting version of the standard command interpreter sh, used to restrict logins to execution environments whose capabilities are
more controlled than those of sh (see sh(1) for complete description and usage).
When the shell is invoked, it scans the environment for the value of the environmental variable, SHELL. If it is found and rsh is the file
name part of its value, the shell becomes a restricted shell.
The actions of rsh are identical to those of sh, except that the following are disallowed:
o changing directory (see cd(1)),
o setting the value of $PATH,
o pecifying path or command names containing /,
o redirecting output (> and >>).
The restrictions above are enforced after .profile is interpreted.
A restricted shell can be invoked in one of the following ways:
1. rsh is the file name part of the last entry in the /etc/passwd file (see passwd(4));
2. the environment variable SHELL exists and rsh is the file name part of its value; the environment variable SHELL needs to be set
in the .login file;
3. the shell is invoked and rsh is the file name part of argument 0;
4. the shell is invoke with the -r option.
When a command to be executed is found to be a shell procedure, rsh invokes sh to execute it. Thus, it is possible to provide to the end-
user shell procedures that have access to the full power of the standard shell, while imposing a limited menu of commands; this scheme
assumes that the end-user does not have write and execute permissions in the same directory.
The net effect of these rules is that the writer of the .profile (see profile(4)) has complete control over user actions by performing
guaranteed setup actions and leaving the user in an appropriate directory (probably not the login directory).
The system administrator often sets up a directory of commands (that is, /usr/rbin) that can be safely invoked by a restricted shell. Some
systems also provide a restricted editor, red.
EXIT STATUS
Errors detected by the shell, such as syntax errors, cause the shell to return a non-zero exit status. If the shell is being used non-
interactively execution of the shell file is abandoned. Otherwise, the shell returns the exit status of the last command executed.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO intro(1), cd(1), login(1), rsh(1), sh(1), exec(2), passwd(4), profile(4), attributes(5)NOTES
The restricted shell, /usr/lib/rsh, should not be confused with the remote shell, /usr/bin/rsh, which is documented in rsh(1).
SunOS 5.11 1 Nov 1993 rsh(1M)