Manual browser: look(1)
|LOOK(1)||General Commands Manual||LOOK(1)|
NAMElook — display lines beginning with a given string
|look||[-df] [-t termchar] string [file]|
DESCRIPTIONThe look utility displays any lines in file which contain string as a prefix. As look performs a binary search, the lines in file must be sorted.
If file is not specified, the file /usr/share/dict/words is used, only alphanumeric characters are compared and the case of alphabetic characters is ignored.
- Dictionary character set and order, i.e. only alphanumeric characters are compared.
- Ignore the case of alphabetic characters.
- Specify a string termination character, i.e. only the characters in string up to and including the first occurrence of termchar are compared.
The look utility exits 0 if one or more lines were found and displayed, 1 if no lines were found, and >1 if an error occurred.
- the dictionary
COMPATIBILITYThe original manual page stated that tabs and blank characters participated in comparisons when the -d option was specified. This was incorrect and the current man page matches the historic implementation.
HISTORYlook appeared in Version 7 AT&T UNIX.
|June 14, 1993||NetBSD 7.0|