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49
"LABEL", and value of "root", if that is more convenient.
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51
Another common usage is to retrieve the value of a specific attribute
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55
if ((value = blkid_get_tag_value(cache, attribute_name, devname))) {
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56
/* do something with value */
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cache value of NULL is not recommended, since the /etc/blkid.tab file
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and deallocated. To initialize the blkid cache, blkid_get_cache()