Bash - if condition command not found

Question

I would like to execute a quite simple test by using :

YY=${array[17]}
echo $YY

if [ "$YY" -ne 0 ]
then
    echo "do.."
else
    echo "here"
fi

But this code returns :

0
./script.sh: line 303: $'[\302\2400': command not found

What I do wrong ?

Dunno what that error is but if YY isn't an integer then using single [ will fail. In almost all cases it is better the use double [[ i.e if [[ "$YY" -ne 0 ]] — user4453924
– user4453924, Commented Mar 23, 2015 at 9:59
Thank for your reply but the problem stay the same, it returns line 302: $'[[\302\2400': command not found — ogs
– ogs, Commented Mar 23, 2015 at 10:23
Could you give an example of YY value - since you are calling an array index that we cannot see. — asimovwasright
– asimovwasright, Commented Mar 23, 2015 at 10:43
$'\302\240' is the character U+00A0 NO-BREAK SPACE. Replace the unbreakable space by an ordinary space. — Gilles 'SO- stop being evil'
– Gilles 'SO- stop being evil', Commented Mar 23, 2015 at 11:18

Gordon Davisson · Accepted Answer · 2015-03-23 16:40:25Z

4

$'[\302\2400' is bash's way of writing a three-character string: a "[" followed by a non-breaking space (unicode U+00A0; in HEX UTF-8 that's c2 a0, but the shell prints it in octal as 302 240), and finally the digit "0". Based on this, I'm pretty sure you have a non-breaking space between [ and "$YY", and you just need to replace that with a normal space.

edited Mar 23, 2015 at 16:40

answered Mar 23, 2015 at 14:25

Gordon Davisson

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Comments

GoinOff · Accepted Answer · 2015-03-23 14:36:24Z

1

Sounds like you have some weird chars in your number string...Maybe try using REG_EX to extract numbers from a string..

YY=${array[17]}
echo "\"$YY\""

#Use reg ex to extract number and leave behind garbage
REG_EX="([0-9]+)" 

if [[ $YY =~ $REG_EX ]]
then
  YY=${BASH_REMATCH[1]}
  if [ "$YY" -ne 0 ]
  then
    echo "do.."
  else
    echo "here"
  fi
else
  echo "Trouble extracting number from YY"
fi

edited Mar 23, 2015 at 14:36

answered Mar 23, 2015 at 14:09

GoinOff

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