Mike Leone on 23 Apr 2010 11:35:48 -0700


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[PLUG] Bash script problems - no "function" support?


So I'm trying to run the bash script JP posted the other day, and it's 
failing, for reasons I can't quite figure out.

$ bash -n snag-files.sh
'nag-files.sh: line 15: syntax error near unexpected token `{
'nag-files.sh: line 15: `function _file_size {

Here's a snip of the file:

=================
#!/bin/bash

TREE='/ftp-area/'  # Must be read-write by user
LAST_RUN="$HOME/snag_files.last_run"   # Must be writable by user
SLEEP_SECS='5'     # Wait between file checks.

    # If you have a lot of files to process, this will add up fast...
ZIP_FILE="$HOME/snagged_$(date '+%Y-%m-%d_%H:%M:%S').zip"
MAX_ZIPS_TO_KEEP='5'  # Keep this many previous ZIP files, just in case

#----------------------------------------------------------
# Define functions
#+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

function _file_size {
      # "Utility" function to return file size
      # Called like: now=$(_file_size "$file")
      # Returns: file size
      # We've already made sure the file exists and is readable, so...
      local file="$1"

      \ls -s "$file" | cut -d' ' -f1
} # end of function _file_size

=================

Seems to think that the function declaration is invalid. Looks right to 
me, from what I can tell. However, even the sample script using 
functions fails: (<http://tldp.org/HOWTO/Bash-Prog-Intro-HOWTO-8.html>)

=================
$ more test.sh
#!/bin/bash
function quit {
               exit
               }
function hello {
                 echo Hello!
                }
hello
quit
echo foo

$ sh test.sh
test.sh: 2: function: not found

==============

So why are functions not being recognized on my system? Ubuntu 8.04. The 
shell for this user is explicitly set to "/bin/bash" in /etc/passwd.



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