fmlcut - cut out selected fields of each line of a file
fmlcut -clist [filename...]
fmlcut -flist [-dchar] [-s] [filename...]
The fmlcut function cuts out columns from a table or fields
from each line in filename; in database parlance, it imple-
ments the projection of a relation. fmlcut can be used as a
filter; if filename is not specified or is -, the standard
input is read. list specifies the fields to be selected.
Fields can be fixed length (character positions) or variable
length (separated by a field delimiter character), depending
on whether -c or -f is specified.
Note: Either the -c or the -f option must be specified.
list A comma-separated list of integer field numbers (in
increasing order), with optional - to indicate ranges.
For example: 1,4,7; 1-3,8; -5,10 (short for 1-5,10);
or 3- (short for third through last field).
If -c is specified, list specifies character positions
(for instance, -c1-72 would pass the first 72 charac-
ters of each line). Note: No space intervenes between
-c and list.
If -f is specified, list is a list of fields assumed
to be separated in the file by the default delimiter
character, TAB, or by char if the -d option is speci-
fied. For example, -f1,7 copies the first and seventh
field only. Lines with no delimiter characters are
passed through intact (useful for table subheadings),
unless -s is specified. Note: No space intervenes
between -f and list. The following options can be used
if you have specified -f.
If -d is specified, char is the field delimiter.
Space or other characters with special meaning
to FMLI must be quoted. Note: No space inter-
venes between -d and char . The default field
delimiter is TAB.
-s Suppresses lines with no delimiter characters.
If -s is not specified, lines with no delimiters
will be passed through untouched.
Example 1: Getting login IDs and names
The following example gets the login IDs and names.
example% fmlcut -d: -f1,5 /etc/passwd
Example 2: Getting the current login name
The next example gets the current login name.
example% `who am i | fmlcut -f1 -d" "`
See attributes(5) for descriptions of the following attri-
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
| Availability | SUNWcsu |
fmlcut returns the following exit values:
0 when the selected field is successfully cut out
2 on syntax errors
The following error messages may be displayed on the FMLI
ERROR: line too long
A line has more than 1023 characters or fields, or
there is no new-line character.
ERROR: bad list for c/f option
Missing -c or -f option or incorrectly specified list.
No error occurs if a line has fewer fields than the
list calls for.
ERROR: no fields
The list is empty.
ERROR: no delimiter
Missing char on -d option.
fmlcut cannot correctly process lines longer than 1023 char-
acters, or lines with no newline character.
Man(1) output converted with