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Checking header field in IRAF

In order to get a specific field from the header of a file you can use the command:

cl> imhead inage.fit l+ | grep name_of_field

In case you want to do it for many files you just use the wildcard:

cl> imhead inage*.fit l+ | grep name_of_field

Not very sophisticated … but worked fine in my case, that I just wanted a quick eye inspection!