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EMBOSS: noreturn
noreturn

 

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Function

Remove carriage return from ASCII files

Description

noreturn reads an input file of plain text containing unwanted carriage returns on the end of lines, and writes an output file which is identical to the input file, except that any trailing carriage returns are removed.

Usage

Here is a sample session with noreturn 


% noreturn abc.dat 
Remove carriage return from ASCII files
ASCII text output file [abc.noreturn]:

Go to the input files for this example
Go to the output files for this example

Command line arguments 

Remove carriage return from ASCII files
Version: EMBOSS:6.4.0.0

   Standard (Mandatory) qualifiers:
  [-infile]            infile     ASCII text file
  [-outfile]           outfile    [*.noreturn] ASCII text output file

   Additional (Optional) qualifiers: (none)
   Advanced (Unprompted) qualifiers:
   -system             menu       [unix] Target operating system for
                                  end-of-line format (Values: unix (Unix/Linux
                                  systems); pc (Windows/DOS); mac (Apple
                                  Macintosh))

   Associated qualifiers:

   "-outfile" associated qualifiers
   -odirectory2        string     Output directory

   General qualifiers:
   -auto               boolean    Turn off prompts
   -stdout             boolean    Write first file to standard output
   -filter             boolean    Read first file from standard input, write
                                  first file to standard output
   -options            boolean    Prompt for standard and additional values
   -debug              boolean    Write debug output to program.dbg
   -verbose            boolean    Report some/full command line options
   -help               boolean    Report command line options and exit. More
                                  information on associated and general
                                  qualifiers can be found with -help -verbose
   -warning            boolean    Report warnings
   -error              boolean    Report errors
   -fatal              boolean    Report fatal errors
   -die                boolean    Report dying program messages
   -version            boolean    Report version number and exit

Qualifier Type Description Allowed values Default
Standard (Mandatory) qualifiers
[-infile]
(Parameter 1)		 infile ASCII text file Input file Required
[-outfile]
(Parameter 2)		 outfile ASCII text output file Output file <*>.noreturn
Additional (Optional) qualifiers
(none)
Advanced (Unprompted) qualifiers
-system list Target operating system for end-of-line format
unix (Unix/Linux systems)
pc (Windows/DOS)
mac (Apple Macintosh)
 unix
Associated qualifiers
"-outfile" associated outfile qualifiers
-odirectory2
-odirectory_outfile		 string Output directory Any string  
General qualifiers
-auto boolean Turn off prompts Boolean value Yes/No N
-stdout boolean Write first file to standard output Boolean value Yes/No N
-filter boolean Read first file from standard input, write first file to standard output Boolean value Yes/No N
-options boolean Prompt for standard and additional values Boolean value Yes/No N
-debug boolean Write debug output to program.dbg Boolean value Yes/No N
-verbose boolean Report some/full command line options Boolean value Yes/No Y
-help boolean Report command line options and exit. More information on associated and general qualifiers can be found with -help -verbose Boolean value Yes/No N
-warning boolean Report warnings Boolean value Yes/No Y
-error boolean Report errors Boolean value Yes/No Y
-fatal boolean Report fatal errors Boolean value Yes/No Y
-die boolean Report dying program messages Boolean value Yes/No Y
-version boolean Report version number and exit Boolean value Yes/No N

Input file format

The input file is a text data file with unwanted trailing carriage returns.

Input files for usage example

File: abc.dat

>ABC Test sequence with PC carriage return format
ACDEFGHIKLMNPQRSTVWY

Output file format

Output files for usage example

File: abc.noreturn

>ABC Test sequence with PC carriage return format
ACDEFGHIKLMNPQRSTVWY

The output file is identical to the input file, except that any trailing carriage returns have been removed. For most files this will make no difference.

Data files

None.

Notes

Unix and PC operating systems store plain text files (which includes sequence files) slightly differently. Unix files have a hidden character called 'new line' at the end of every line whereas PC files have a 'new line' and a 'carriage return' at the end of every line. When files are transferred from a PC to a Unix machines, it is often useful to convert the file from the PC format to the Unix format, otherwise commands (such as 'more') and programs (such as text editors) that display the file can become confused. noreturn removes 'carriage return' characters from such files, converting them from PC format to Unix format text files.

EMBOSS programs can read in both PC and Unix text file formats, so it is not necessary for you to use this utility all of the time.

References

None.

Warnings

None.

Diagnostic Error Messages

None.

Exit status

It always exits with a status of 0.

Known bugs

None.

See also

Program name Description
aligncopy Reads and writes alignments
aligncopypair Reads and writes pairs from alignments
biosed Replace or delete sequence sections
codcopy Copy and reformat a codon usage table
cutseq Removes a section from a sequence
degapseq Removes non-alphabetic (e.g. gap) characters from sequences
descseq Alter the name or description of a sequence
entret Retrieves sequence entries from flatfile databases and files
extractalign Extract regions from a sequence alignment
extractfeat Extract features from sequence(s)
extractseq Extract regions from a sequence
featcopy Reads and writes a feature table
featreport Reads and writes a feature table
feattext Return a feature table original text
listor Write a list file of the logical OR of two sets of sequences
makenucseq Create random nucleotide sequences
makeprotseq Create random protein sequences
maskambignuc Masks all ambiguity characters in nucleotide sequences with N
maskambigprot Masks all ambiguity characters in protein sequences with X
maskfeat Write a sequence with masked features
maskseq Write a sequence with masked regions
newseq Create a sequence file from a typed-in sequence
nohtml Remove mark-up (e.g. HTML tags) from an ASCII text file
nospace Remove whitespace from an ASCII text file
notab Replace tabs with spaces in an ASCII text file
notseq Write to file a subset of an input stream of sequences
nthseq Write to file a single sequence from an input stream of sequences
nthseqset Reads and writes (returns) one set of sequences from many
pasteseq Insert one sequence into another
revseq Reverse and complement a nucleotide sequence
seqcount Reads and counts sequences
seqret Reads and writes (returns) sequences
seqretsetall Reads and writes (returns) many sets of sequences
seqretsplit Reads sequences and writes them to individual files
sizeseq Sort sequences by size
skipredundant Remove redundant sequences from an input set
skipseq Reads and writes (returns) sequences, skipping first few
splitsource Split sequence(s) into original source sequences
splitter Split sequence(s) into smaller sequences
trimest Remove poly-A tails from nucleotide sequences
trimseq Remove unwanted characters from start and end of sequence(s)
trimspace Remove extra whitespace from an ASCII text file
union Concatenate multiple sequences into a single sequence
vectorstrip Removes vectors from the ends of nucleotide sequence(s)
yank Add a sequence reference (a full USA) to a list file

Author(s)

Alan Bleasby
European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge CB10 1SD, UK

Please report all bugs to the EMBOSS bug team (emboss-bug © emboss.open-bio.org) not to the original author.

History

Written (1999) - Alan Bleasby

Target users

This program is intended to be used by everyone and everything, from naive users to embedded scripts.

Comments

None