Running Bash Shell Script for Linux on OS X variable confusion

wagscat123 · 06-25-2016, 05:03 PM

Hi all,

I'm using a CTX script from https://psd-repo.uchicago.edu/kite-l...go_asp_scripts. I was forewarned that they were tested under Linux and may or may not work under OS X, although in this situation I must run OS X. When I run ctxedr2lev1eo.sh with a properl input file, I get

Code:

lynnes-iMac:tc_trunk_theirs0 CSSTinterns$ ctxedr2lev1eo.sh list
/Users/CSSTinterns/isis-workspace/mars-proj/theirs/ctxedr2lev1eo.sh: line 41: [[!: command not found
/Users/CSSTinterns/isis-workspace/mars-proj/theirs/ctxedr2lev1eo.sh: line 41: [[!: command not found
/Users/CSSTinterns/isis-workspace/mars-proj/theirs/ctxedr2lev1eo.sh: line 41: [[!: command not found
/Users/CSSTinterns/isis-workspace/mars-proj/theirs/ctxedr2lev1eo.sh: line 41: [[!: command not found
Start ctxedr2lev1eo.sh Sat Jun 25 17:49:03 EDT 2016

first. However, when I copy and paste all of the code up to and including line 41, then run this smaller script alone in isolation on OS X with the same input file, I do not get this same error. Why could this be?

Here's a the script snipped I'm running in isolation:

Code:

lynnes-iMac:test_compat CSSTinterns$ cat linuxornot0.sh 
# Just a simple function to print a usage message
print_usage (){
echo ""
echo "Usage: $0 <productIDs.lis>"
echo " Where <productIDs.lis> is a file containing a list of the IDs of the CTX products to be processed."
echo " Product IDs belonging to a stereopair must be listed sequentially."
echo " The script will search for CTX EDRs in the current directory before processing with ISIS."
}

### Check for sane commandline arguments

if [[ $# != 1 ]] || [[ "$1" = "-"* ]]; then
  # print usage message and exit
  print_usage
  exit 0
else 
  p=$1
fi
lynnes-iMac:test_compat CSSTinterns$

with "if [[ $# != 1 ]] || [[ "$1" = "-"* ]]; then" being the line that acts up in the larger program.

Spent a while on this, but have more time to figure it out. Any ideas?

norobro · 06-25-2016, 07:24 PM

Unless I'm missing something line 41 is the following:

Code:

	if [[! -s $i.img ]] || [[! -s $i.IMG ]]; then

From https://psd-repo.uchicago.edu/kite-l...xedr2lev1eo.sh

Try putting a space before the exclamation points:

Code:

	if [[ ! -s $i.img ]] || [[ ! -s $i.IMG ]]; then

wagscat123 · 06-25-2016, 08:01 PM

Thanks for your reply - I tried adding that space on Line 41 a try, but still got the same error.

norobro · 06-25-2016, 08:39 PM

Sorry, maybe it is a OS X thing then. On my Debian box my simple test errors without the spaces:

Code:

$ if [[! -s some.img ]] || [[! -s some.IMG ]]; then echo "warning"; fi
bash: [[!: command not found
bash: [[!: command not found

It works with spaces:

Code:

$ if [[ ! -s some.img ]] || [[ ! -s some.IMG ]]; then echo "warning"; fi
warning

wagscat123 · 06-26-2016, 12:48 PM

I didn't look closely enough to realize that I had to add a space before both exclamation points. That did the trick and got me past this one error for now. Many thanks! I may be back later if I run into another issue.