ftruncate
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| + | # $EPIC: ftruncate.txt,v 1.2 2006/10/06 19:08:28 jnelson Exp $ | ||
| + | ======Synopsis:====== | ||
| + | $[[ftruncate]](//bytes// //filename//) | ||
| + | |||
| + | ======Technical:====== | ||
| + | The [[ftruncate]] file causes the //filename// to change to exactly //bytes// | ||
| + | bytes in size. The file is grown or shrunk as necessary. If the file is | ||
| + | shrunk, the data beyond the new file size is irretrievably lost. If the file | ||
| + | is grown, the contents of the new space is unspecified, but usually it is | ||
| + | nuls (ascii 0). | ||
| + | |||
| + | If the operation succeeds, the empty string is returned. If the operation | ||
| + | fails, an error string is returned, suitable for [[echo]]ing. | ||
| + | |||
| + | ======Practical:====== | ||
| + | This is useful for clearing a logfile that has gotten too big. | ||
| + | |||
| + | ======Returns:====== | ||
| + | The empty string on success, or an error string on failure. | ||
| + | |||
ftruncate.txt ยท Last modified: 2006/10/06 19:08 (external edit)
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