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Full Discussion: print specific strings only
Top Forums Shell Programming and Scripting print specific strings only Post 302357472 by daptal on Wednesday 30th of September 2009 01:12:23 AM
Old 09-30-2009
It would do you a world of good if you generate the file with the same number of fields as it would be easy for processing and understanding as well.
If for some record some field does not exist replace it with a null space and use a standard delimiter. Eg:- tab

Cheers
 

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fmlcut(1F)							   FMLI Commands							fmlcut(1F)

NAME
fmlcut - cut out selected fields of each line of a file SYNOPSIS
fmlcut -clist [filename]... fmlcut -flist [-dchar] [-s] [filename]... DESCRIPTION
The fmlcut function cuts out columns from a table or fields from each line in filename; in database parlance, it implements 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. OPTIONS
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 (for instance, -c1-72 would pass the first 72 characters of each line). Note: 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 charac- ters 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. -dchar If -d is specified, char is the field delimiter. Space or other characters with special meaning to FMLI must be quoted. Note: 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
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" "` ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
fmlgrep(1F), attributes(5) 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. SunOS 5.11 5 Jul 1990 fmlcut(1F)
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