On 8/15/2011 9:24 PM, Stephane CHAZELAS wrote:
2011-08-15, 17:15(+02), Francky Leyn:
Hello,
if you have a variable, say VAR,
and you don't assign it a value,
and afterwards you test it,
what is the value of $VAR then?
random, or an empty string?
[...]
Upon startup, the shell makes one
Hello,
if you have a variable, say VAR,
and you don't assign it a value,
and afterwards you test it,
what is the value of $VAR then?
random, or an empty string?
Best regards,
Francky
Hello,
I have the following problem: I must write a sed script that
converts parts of groff syntax to LaTeX syntax.
eg: .BI -o gif_output_file -> \textbf{-o} \textit{gif\_output\_file}
Lets neglect the underscores for the moment.
This can be dan with
s/\.BI \([^ ]*\) \([^ ]*\)/\\textbf{\1} \\
On 8/8/2011 2:17 PM, mhenn wrote:
Am 08.08.2011 11:33, schrieb Francky Leyn:
Hello,
consider the following code:
EXTENSION=jpg
INPUT_FILES=*.$EXTENSION
echo "$INPUT_FILES" #obviously wrong
#instead maybe
INPUT_FILES="$(ls *.$EXTENSION)"
I tried something simil
INPUT_FILES=*.$EXTENSION
echo $INPUT_FILES --> '*.jpg' instead of the empty string.
Is there any way I can optain an empty string?
I would like to test on the zeroness of INPUT_FILES.
Best regards,
Francky Leyn
w a dir without .jpg files.
Then the if close also isn't executed, while it should.
The script isn't exited and runs further with all wrong
actions as consequence.
What is wrong here?
Best regards,
Francky Leyn
