Re: [Dorset] Multiple commands in bash

[Tim Allen]

Hi Ralph

On 12/03/15 15:34, Ralph Corderoy wrote:

Hi Tim,


I'd like to run multiple commands in Bash:

patch -m patchfile  hg diff  cd dir  make -s

but for audit purposes I'd like each command in the list to be echoed
as run, even better I'd like the Bash prompt to appear too in front of
each line.


 $ cat tim
 id
 date
 false
 echo not reached
 $
 $ PS1='$ ' bash --norc -ei tim
  A  $ id
 uid=1000(ralph) gid=1000(ralph) 
groups=1000(ralph),4(adm),20(dialout),24(cdrom),30(dip),46(plugdev),100(users),111(lpadmin),119(admin),122(sambashare)
 $ date
 2015-03-12 15:32:23 + Thu
  B  $ false
 $

Note, the `$ ' from A to B are from the bash I've explicitly invoked.
At the end, it returns to my shell.  Ask if there's anything you can't
figure out.



Perfect. -i gives interactive shell so get prompts. -e exits on error.

Cheers

Tim





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[Dorset] Fwd: Re: Multiple commands in bash

[Tim Allen]

Sorry - in the old days Reply To: was list.


 Forwarded Message 
Subject: Re: [Dorset] Multiple commands in bash
Date: Thu, 12 Mar 2015 15:10:30 +
From: TimA t...@ls83.eclipse.co.uk
To: Andrew Montgomery-Hurrell darkliq...@darkliquid.co.uk

Hi Andrew

That achieves the same as

#!/bin/bash -v

echo 1
echo 2
echo 3


I don't particularly need to place the commands in an array. I need to
avoid any faking too.

I'm thinking perhaps spawning bash from an expect script is the way to
do this.

Cheers

Tim


On 12/03/15 14:42, Andrew Montgomery-Hurrell wrote:

Not sure if this is what you want, but something like the following might
work. It doesn't do the bash prompt since there is not way of getting the
current prompt output reliably, but if you just want a fake one for display
purposes, you could hard code it into the script. Also, it doesn't check
the exit codes and abort early, as the  would do, but that's easy enough
to add in.

#!/bin/bash

COMMANDS=()
COMMANDS[0]=echo 1
COMMANDS[1]=echo 2
COMMANDS[2]=echo 3

for ((i = 0; i  ${#COMMANDS[@]}; i++)) ; do
 echo ${COMMANDS[$i]}
 ${COMMANDS[$i]}
done

On Thu, 12 Mar 2015 at 14:13 TimA t...@ls83.eclipse.co.uk wrote:


Hi

I'd like to run multiple commands in Bash:

patch -m patchfile  hg diff  cd dir  make -s

but for audit purposes I'd like each command in the list to be echoed as
run, even better I'd like the Bash prompt to appear too in front of each
line.

I know that as an alternative I can put the commands in a script with
#!/bin/bash -v to get the first requirement.

Cheers

Tim

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