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testing file types with if statement

Hi all, I want to know how to test if a file is a text file or any other type in a "if" statement (In a shell script) ?
ex: if [ test.wkr is text ] then do....
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mabell
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mabell
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1 Solution
 
ct.smithCommented:
This sort of thing, if available, will be specific to the API you're using.  Most languages don't offer anything beyond opening a file as text or binary, which is decided at compile time.

Anyways, you migth have some luck if you look for references to handling or discovering mime types in whatever API/library/language you're using.
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ahoffmannCommented:
man test will give you all the answers, the usage of this test depends on your shell (mainly csh vs. sh variants), for example to test a pipe:

   if [ -p file ] then echo is PIPE

If you menan something like "content is word .doc" format vs. "content is plain ASCII" format, use the file command: man file
(keep in mind that the result of the file command highly depends on the quality of your /etc/magic file.
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mabellAuthor Commented:
Ok thx :)
I do this (to test if a file is a text file) :
fileTest=$(file $1/$2|awk '{printf $3}')
if [ $fileTest = "text," ]
then
...

were $1 is a directory and $2 is a file passed in parameters
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ahoffmannCommented:
oops, take care with
     file $1/$2|awk '{printf $3}'
it may produce fals positives, for example see:
     awk '($5 == "text"){print}' /etc/magic
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