fmlcut(1F) fmlcut(1F)
NAME
fmlcut - cut out selected fields of each line of a file
SYNOPSIS
fmlcut -clist [file ...]
fmlcut -flist [-dchar] [-s] [file ...]
DESCRIPTION
The fmlcut function cuts out columns from a table or fields from each
line in file; in database parlance, it implements the projection of a
relation. fmlcut can be used as a filter; if file 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 that either the -c or the -f option must be specified.
The meanings of the options are:
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).
-clist If -c is specified, list specifies character positions
(e.g., -c1-72 would pass the first 72 characters of each
line). Note that no space intervenes between -c and list.
-flist 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 specified. 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 that
no space intervenes between -f and list. The following
options can be used if you have specified -f.
-dchar
If -d is specified, char is the field delimiter. Space or
other characters with special meaning to FMLI must be
quoted. Note that no space intervenes 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.
EXAMPLES
fmlcut -d: -f1,5 /etc/passwd gets login IDs and names
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fmlcut(1F) fmlcut(1F)
`who am i | fmlcut -f1 -d" "` gets the current login name
DIAGNOSTICS
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 message
line:
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.
NOTES
fmlcut cannot correctly process lines longer than 1023 characters, or
lines with no newline character.
SEE ALSO
fmlgrep(1F).
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