Les wrote: > On Tue, 2007-07-31 at 15:12 -0400, Mark Haney wrote: > Sort will give you the list. I don't know about sorting on a substring > with a command other than creating one. In C, you could read the > directory, then choose the substring using parsing, and finally look at > the last two characters prior to the period to get the sequence and look > for missing files. Do you know the first number and last number? If > not, then this won't work, because the first file and last file would > not have partners on each side to help you figure out if it was > missing. > The -k and -t options of sort may do what is needed. If you want to sort starting with the 5 character of the name, you could probably do something like sort -k 1.5 as long as there are no spaces in the name. I believe something like -k 1.5,1.7 would use the 5th, 6th, and 7th character. Now, if there is a field separator between parts of the file name, you can use the -t option to use that to separate the name into fields. This is handy when the names are not fixed length. Something like 10-12-07_MKE_10.14_XX.jpg could be split using _ as the field seperator, and sorting on the 4th field. You may have to specify a numeric sort, especially if the numbers do not have leading zeros. sort -n -t _ -k 4 Mikkel -- Do not meddle in the affairs of dragons, for thou art crunchy and taste good with Ketchup!
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