Have you considered running these things on the root cron or a root service so they can be created with read permission to your id or your user's ids.
I guess tabs are meta to expect, and if they lose their quoting or escaping, they are just white space!
You should be able to send one block of code through, or on the command line of, one ssh session and get all your answers from the output on stdout and stderr.
Code:
echo '...'|ssh whoever@wherever -tt bash 2>&1 | sed '...'
ssh whoever@wherever -ntt '...' 2>&1 | while read l ; do ... done
BTW, the first actually becomes bash -c '...' on the remote side for non-trivial '...'
I am not a big fan of the here document '<<' ; there are places it is great, like plain text lists, but for shell it has less control than "echo '...' |ssh bash", where exactly what you say goes down the pipe unprocessed to a remote shell. If you need something on this side that ' blocks, slip out to ", do it , then out of " and back to '. If you want that same control over on the remote shell, ' becomes '"'"' (single-double-single-double-single). No surprises, no extra quote stripping. I try to stay away from '\' for similar reasons. They disappear with little warning.
Hi,
I have installed bash 3.2 via darwin ports, however when I try and change the shell i.e. chsh -s /opt/local/bin/bash is says its a non-standard shell? but if i run ./bash i get a new bash prompt with version 3.2?
Thanks (3 Replies)
i am having a weird error on mac os x running some shell scripts. i am a complete newbie at this and this question concerns 2 scripts. one of which a friend of mine wrote (videochecker.sh) a couple weeks ago and it's been running fine on another machine.
then last week i wrote capture.sh and it... (2 Replies)
Hi there,
Hope this isn't too complex of a script to try to make but this is what I'm trying to do.
Create a new group and add local users that aren't admin to the group.
So let's say the new group is 'cats' and 'dog' is the only admin on the machine. Let's say most machines only have one... (4 Replies)
I am having an issue where I am do an SSH to about 30 servers one at a time however my script is getting hung up sometimes on the SSH.
I thought the & at the end as seen below would fire it and move on but that does not seem to be working.
#!/bin/s
for remsys in trumpetsnail angel delphin... (3 Replies)
Hi, I'm writing a shell script that calls a few commands that prompt the user for two simple yes/no questions. if the answers are consistent (the first is a yes, the second is a no), what would my expect script look like? Google is only giving me answers for scripts where I telnet or ssh. right now... (3 Replies)
Hi guys, I'm new here and new to shell scripting so don't be hard on me
I'm trying to create a bash script to restart a process by name in Mac OSX.
I have no problem killing the application, the problem comes when launching it again.
I managed to store the path in a variable lets say
... (8 Replies)
Can you explain what this line of script is doing.
What I have understood is :
-- variable C is the name of a software which is either not installed, so it must be installed or allready installed and then should be update if newer version found
-- branch B="$B $C" is to install the software
--... (4 Replies)
I have a script that writes another script with
cat >/usr/local/bin/myscript.sh <<EOF
#!/bin/sh
VAR=`run a command here`
EOF
Problem is, after this is run, I get:
$ cat /usr/local/bin/myscript.sh
#!/bin/sh
VAR=result of command
How do I stop that from happening with Macs... (2 Replies)
Hi All,
I have written a script to automate scp of files. Most of the times it works fine except few cases. I want your help and suggestions to fix these failures.
I have used expect & shell to do the automated scp. Below is code
$ cat scp.ksh
#!/bin/ksh
inputfile=$1
fdest_sid=$2... (8 Replies)
im very happy to back for this forum
I have servers with alias of double dns extentions:
sample:
servera.test.com
servera.test1.com
serverb.test.com
serverb.test1.com
I need to login to that severs and executing the set of commands
if test.com failed then try to login via... (0 Replies)
Discussion started by: prakash0106
0 Replies
LEARN ABOUT LINUX
rbash
RBASH(1) General Commands Manual RBASH(1)NAME
rbash - restricted bash, see bash(1)RESTRICTED SHELL
If bash is started with the name rbash, or the -r option is supplied at invocation, the shell becomes restricted. A restricted shell is
used to set up an environment more controlled than the standard shell. It behaves identically to bash with the exception that the follow-
ing are disallowed or not performed:
o changing directories with cd
o setting or unsetting the values of SHELL, PATH, ENV, or BASH_ENV
o specifying command names containing /
o specifying a file name containing a / as an argument to the . builtin command
o specifying a filename containing a slash as an argument to the -p option to the hash builtin command
o importing function definitions from the shell environment at startup
o parsing the value of SHELLOPTS from the shell environment at startup
o redirecting output using the >, >|, <>, >&, &>, and >> redirection operators
o using the exec builtin command to replace the shell with another command
o adding or deleting builtin commands with the -f and -d options to the enable builtin command
o using the enable builtin command to enable disabled shell builtins
o specifying the -p option to the command builtin command
o turning off restricted mode with set +r or set +o restricted.
These restrictions are enforced after any startup files are read.
When a command that is found to be a shell script is executed, rbash turns off any restrictions in the shell spawned to execute the script.
SEE ALSO bash(1)GNU Bash-4.0 2004 Apr 20 RBASH(1)