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Full Discussion: Script doesn't work in loop but does if not
Top Forums Shell Programming and Scripting Script doesn't work in loop but does if not Post 302441869 by agama on Monday 2nd of August 2010 07:21:31 PM
Old 08-02-2010
It would help to see at least the first few lines of your input .txt file. I'm guessing that it contains more than just the user name on each line. If that is the case then each space separated token on each record will be assigned to line and the loop executed. If your file contains three tokens per line (lets say a, b, and c for line 1), then the first time through the loop the deststr variable is assigned something like this:

Code:
/home/admin/a.mydomain.com/wp-content/plugins/wp-stuff

and that might not be a legitimate filename.


There are several ways that you can test for this, with the easiest being to echo the contents of deststr rather than executing the mv command. This would validate the contents of deststr and give you a better idea of what is going on.

If your input file does contain multiple columns of data, the following could be used to extract the proper column (column 3 in my example) and then do the right thing.

Code:
# Loop through the file; read and echo col 3 -- change $3 to which ever column you need
awk '{ print $3 }' <nlist.txt | while read dbuser
do
        echo "copying plugin..."
        #echo "($dbuser)"               # debugging if needed
        deststr="foo/home/admin/$dbuser.mydomain.com/wp-content/plugins/wp-stuff"

        cp -R -p /home/wp-stuff $deststr
done

If your input list contains only the dbuser name, then I suggest running your script with a 'set -x' at the top and looking at the tracing output for clues as to what is going on.

Hope this is useful.
 

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LEARN ABOUT CENTOS

tabfunc

TABFUNC(1)						      General Commands Manual							TABFUNC(1)

NAME

       tabfunc - convert table to functions for rcalc, etc.

SYNOPSIS

       tabfunc [ -i ] func1 [func2 ..]

DESCRIPTION

       Tabfunc	reads  a  table  of  numbers  from  the  standard input and converts it to an expression suitable for icalc(1), rcalc(1) and their
       cousins.  The input must consist of a M x N matrix of real numbers, with exactly one row per line.  The number of columns  must	always	be
       the same in each line, separated by whitespace and/or commas, with no missing values.  The first column is always the independent variable,
       whose value indexes all of the other elements.  This value does not need to be evenly spaced, but it must be either monotonically  increas-
       ing  or	monotonically decreasing.  (I.e. it cannot go up and then down, or down and then up.)  Maximum input line width is 4096 characters
       and the maximum number of data rows is 1024.  Input lines not beginning with a numerical value will be silently ignored.

       The command-line arguments given to tabfunc are the names to be assigned to each column.  Tabfunc then produces a single function for  each
       column  given.	If  there are some columns which should be skipped, the dummy name "0" may be given instead of a valid identifier.  (It is
       not necessary to specify a dummy name for extra columns at the end of the matrix.)

       The -i option causes tabfunc to produce a description that will interpolate values in between those given for the independent  variable	on
       the input.

EXAMPLE

       To convert a small data table and feed it to rcalc for some calculation:

	 rcalc -e `tabfunc f1 f2 < table.dat` -f com.cal

AUTHOR

       Greg Ward

SEE ALSO

       cnt(1), icalc(1), neaten(1), rcalc(1), rlam(1), total(1)

RADIANCE
							      10/8/97								TABFUNC(1)
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