nameread(USP)

Name

nameread : Read a file that is in NAME format

Synopsis

Usage   : nameread <name> <namefile>

Options : -l

          -e

          -s<c>

          -n<string>

          --index

Version : Tue Jan  9 09:02:34 JST 2024

Edition : 1

Description

Reads a value from a file <namefile> in NAME format by specifying

the name.  If <namefile> is omitted or specified as "-" then the

command will read from standard input.

The -l option will also output the name as well as the value.

The -e option will use a regular expression to specify the name.

The -s option will replace whilespaces by the character <c>.

(If <c> is omitted, whitespaces are deleted.)

The -n option will set <string> to the null data.

The --index option specfies the indexed name.

Example

$ cat namefile

A usp

B usp laboratory

C

# Normal Output

$ nameread A namefile

usp

# Output the name and the value together

$ nameread -l A namefile

A usp

# Name format data includes whitespace

$ nameread B namefile

usp laboratory

# Replace whitespace with underscore

$ nameread -s_ B namefile

usp_laboratory

# Delete whitespace

$ nameread -s B namefile

usplaboratory

# When reading a field with no value, an empty line is output

$ nameread C namefile

# Set string to null data

$ namread -n @@@ C namefile

@@@

# When specifying a name that doesn't exist, nothing is output

  (-n option is ignored)

$ nameread D namefile

# Specify a regular expression

$ cat namefile2

A_01 1

A_02 2

A_03 3

A_10 5

AA_1 7

$ nameread -e '^A_[0-9]+$' namefile2

1

2

3

5

$ nameread -el '^A_[0-9]+$' namefile2

A_01 1

A_02 2

A_03 3

A_10 5

# --index option makes this simple and much faster

$ nameread -l --index A namefile2

A_01 1

A_02 2

A_03 3

A_10 5

Note

Old -d option (current -s option) will not be supportes

Old -i option (current -n option) will not be supportes