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I'm seeing some really strange behavior in a script I'm working on.What I have is an svn hook that gets run whenever a commit is made to an svn repo. It runs a sqsh command that generates another script (checkout.sh) and then executes that generated script. If I just run the script manually I get a result like this for the generated script:

/usr/bin/install -d /opt/www/targetRepo/svn/targetDir1; /usr/bin/svn checkout http://mysite.com/svn/sourceRepo/targetDir1 /opt/www/targetRepo/svn/targetDir1;
/usr/bin/install -d /opt/www/targetRepo/svn/targetDir2; /usr/bin/svn checkout http://mysite.com/svn/srcRepo/targetDir2 /opt/www/targetRepo/svn/targetDir2;

Notice How each line ends with a semi-colon.

If I run the same script but preface it with /usr/bin/sudo -u myname

then the generated script replaces the semicolon at the end of each line with a pipe '|' character. As a result, when the main script tries to actually execute that generated script it fails with an 'invalid end of file' error.

Update Here are the scripts I'm trying to run:

sudo-hook.sh

#!/bin/bash

/usr/bin/sqsh -o ./checkout.sh -w 999999 -h -S myserver -D mydb -U dbuser -P apassword -C "select distinct '/usr/bin/install -d /opt/www/targetRepo/svn/'+cast(p.id as varchar(32) )+'; /usr/bin/svn checkout http://mysite.com/svn/srcRepo/'+cast(p.id as varchar(32) )+' /opt/www/targetRepo/svn/'+cast(p.id as varchar(32) ) from frame_skus as sku join products as p on p.id=sku.frame_id join frame_colors as c on c.id=sku.color_id join frame_sizes as s on s.id=sku.size_id join value_options as cc on c.color_code_id=cc.id join product_files as img on img.product_id=p.id  and img.color_id=c.id and img.dtype='FRAME_IMAGE' join brands as b on p.brand_id=b.id and b.id=69;"
./checkout.sh

checkout.sh (the generated script):

/usr/bin/install -d /opt/www/targetRepo/svn/31903; /usr/bin/svn checkout http://mysite.com/svn/31903 /opt/www/targetRepo/svn/31903|
/usr/bin/install -d /opt/www/targetRepo/svn/31904; /usr/bin/svn checkout http://mysite.com/svn/31904 /opt/www/targetRepo/svn/31904|
/usr/bin/install -d /opt/www/targetRepo/svn/31905; /usr/bin/svn checkout http://mysite.com/svn/31905 /opt/www/targetRepo/svn/31905|

Can someone please give me an idea of what is going on here?

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  • 2
    Sudo resets much of the environment. Does your script rely on an Env var to generate the output? – Jeff Schaller♦ Apr 28 '16 at 23:01
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    You need to show us the script (and any other script that it depends on). Otherwise we can only make wild guesses. – Gilles 'SO- stop being evil' Apr 29 '16 at 0:36
  • Ok, I added some examples for the scripts I'm trying to run. – pbuchheit Apr 29 '16 at 12:58
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Ok, I think I found the problem. Apparently it was sqsh that was adding those '|' characters. sqsh has a style (-m) flag and it seems if you don't set it explicitly then it defaults to the 'bcp' style which adds those extra characters.

What I would still like to know is why it defaults to one style 'bcp' when run with sudo but defaults to another style 'horizontal' when run without sudo.

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  • Have you an SQSH environment variable set in one place but not the other? Or a ~/.sqshrc file? – roaima Apr 29 '16 at 16:01
  • How would I check to see if that is the case? – pbuchheit Apr 29 '16 at 16:41
  • the same way you'd check any other variable or file. echo $SQSH and cat ~/.sqshrc. Do this as yourself and then do sudo -i and repeat the two commands – roaima Sep 30 '16 at 8:37

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