skipseq

 

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Function

Read and write (return) sequences, skipping first few

Description

skipseq is a variant of the standard program for reading and writing sequences, seqret. It performs exactly the same function except that it skips the first specified number of sequences from the input stream and writes out the rest of them. In all other respects, skipseq is the same as seqret. There are many options built-in into EMBOSS for detailed specification of the input and output sequences, for example the sequence type and file format. Optionally, feature information will be read and written.

Usage

Here is a sample session with skipseq

This does not skip any sequences. It is exactly equivalent to seqret: 


% skipseq 
Read and write (return) sequences, skipping first few
Input (gapped) sequence(s): @eclac.list
Number of sequences to skip at start [0]: 
output sequence(s) [j01636.fasta]:

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

Example 2

This skips the first input sequence, writing out the others: 


% skipseq -skip 1 
Read and write (return) sequences, skipping first few
Input (gapped) sequence(s): @eclac.list
output sequence(s) [j01636.fasta]:

Go to the output files for this example

Command line arguments 

Read and write (return) sequences, skipping first few
Version: EMBOSS:6.6.0.0

   Standard (Mandatory) qualifiers:
  [-sequence]          seqall     (Gapped) sequence(s) filename and optional
                                  format, or reference (input USA)
   -skip               integer    [0] Number of sequences to skip at start
                                  (Any integer value)
  [-outseq]            seqoutall  [.] Sequence set(s)
                                  filename and optional format (output USA)

   Additional (Optional) qualifiers: (none)
   Advanced (Unprompted) qualifiers:
   -feature            boolean    Use feature information

   Associated qualifiers:

   "-sequence" associated qualifiers
   -sbegin1            integer    Start of each sequence to be used
   -send1              integer    End of each sequence to be used
   -sreverse1          boolean    Reverse (if DNA)
   -sask1              boolean    Ask for begin/end/reverse
   -snucleotide1       boolean    Sequence is nucleotide
   -sprotein1          boolean    Sequence is protein
   -slower1            boolean    Make lower case
   -supper1            boolean    Make upper case
   -scircular1         boolean    Sequence is circular
   -squick1            boolean    Read id and sequence only
   -sformat1           string     Input sequence format
   -iquery1            string     Input query fields or ID list
   -ioffset1           integer    Input start position offset
   -sdbname1           string     Database name
   -sid1               string     Entryname
   -ufo1               string     UFO features
   -fformat1           string     Features format
   -fopenfile1         string     Features file name

   "-outseq" associated qualifiers
   -osformat2          string     Output seq format
   -osextension2       string     File name extension
   -osname2            string     Base file name
   -osdirectory2       string     Output directory
   -osdbname2          string     Database name to add
   -ossingle2          boolean    Separate file for each entry
   -oufo2              string     UFO features
   -offormat2          string     Features format
   -ofname2            string     Features file name
   -ofdirectory2       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
[-sequence]
(Parameter 1)		 seqall (Gapped) sequence(s) filename and optional format, or reference (input USA) Readable sequence(s) Required
-skip integer Number of sequences to skip at start Any integer value 0
[-outseq]
(Parameter 2)		 seqoutall Sequence set(s) filename and optional format (output USA) Writeable sequence(s) <*>.format
Additional (Optional) qualifiers
(none)
Advanced (Unprompted) qualifiers
-feature boolean Use feature information Boolean value Yes/No No
Associated qualifiers
"-sequence" associated seqall qualifiers
-sbegin1
-sbegin_sequence		 integer Start of each sequence to be used Any integer value 0
-send1
-send_sequence		 integer End of each sequence to be used Any integer value 0
-sreverse1
-sreverse_sequence		 boolean Reverse (if DNA) Boolean value Yes/No N
-sask1
-sask_sequence		 boolean Ask for begin/end/reverse Boolean value Yes/No N
-snucleotide1
-snucleotide_sequence		 boolean Sequence is nucleotide Boolean value Yes/No N
-sprotein1
-sprotein_sequence		 boolean Sequence is protein Boolean value Yes/No N
-slower1
-slower_sequence		 boolean Make lower case Boolean value Yes/No N
-supper1
-supper_sequence		 boolean Make upper case Boolean value Yes/No N
-scircular1
-scircular_sequence		 boolean Sequence is circular Boolean value Yes/No N
-squick1
-squick_sequence		 boolean Read id and sequence only Boolean value Yes/No N
-sformat1
-sformat_sequence		 string Input sequence format Any string  
-iquery1
-iquery_sequence		 string Input query fields or ID list Any string  
-ioffset1
-ioffset_sequence		 integer Input start position offset Any integer value 0
-sdbname1
-sdbname_sequence		 string Database name Any string  
-sid1
-sid_sequence		 string Entryname Any string  
-ufo1
-ufo_sequence		 string UFO features Any string  
-fformat1
-fformat_sequence		 string Features format Any string  
-fopenfile1
-fopenfile_sequence		 string Features file name Any string  
"-outseq" associated seqoutall qualifiers
-osformat2
-osformat_outseq		 string Output seq format Any string  
-osextension2
-osextension_outseq		 string File name extension Any string  
-osname2
-osname_outseq		 string Base file name Any string  
-osdirectory2
-osdirectory_outseq		 string Output directory Any string  
-osdbname2
-osdbname_outseq		 string Database name to add Any string  
-ossingle2
-ossingle_outseq		 boolean Separate file for each entry Boolean value Yes/No N
-oufo2
-oufo_outseq		 string UFO features Any string  
-offormat2
-offormat_outseq		 string Features format Any string  
-ofname2
-ofname_outseq		 string Features file name Any string  
-ofdirectory2
-ofdirectory_outseq		 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

skipseq reads one or more nucleotide or protein sequences.

The input is a standard EMBOSS sequence query (also known as a 'USA').

Major sequence database sources defined as standard in EMBOSS installations include srs:embl, srs:uniprot and ensembl

Data can also be read from sequence output in any supported format written by an EMBOSS or third-party application.

The input format can be specified by using the command-line qualifier -sformat xxx, where 'xxx' is replaced by the name of the required format. The available format names are: gff (gff3), gff2, embl (em), genbank (gb, refseq), ddbj, refseqp, pir (nbrf), swissprot (swiss, sw), dasgff and debug.

See: http://emboss.sf.net/docs/themes/SequenceFormats.html for further information on sequence formats.

Input files for usage example

File: eclac.list

#Formerly ECLAC
tembl:J01636

#Formerly ECLACA
tembl:X51872

#Formerly ECLACI
tembl:V00294

#Formerly ECLACY
tembl:V00295

#Formerly ECLACZ
tembl:V00296

See the documentation for seqret to see the full range of things that you can do when reading and writing sequences.

Output file format

skipseq writes one or more sequences files, having optionally skipped the first few sequences.

The output is a standard EMBOSS sequence file.

The results can be output in one of several styles by using the command-line qualifier -osformat xxx, where 'xxx' is replaced by the name of the required format. The available format names are: embl, genbank, gff, pir, swiss, dasgff, debug, listfile, dbmotif, diffseq, excel, feattable, motif, nametable, regions, seqtable, simple, srs, table, tagseq.

See: http://emboss.sf.net/docs/themes/SequenceFormats.html for further information on sequence formats.

Output files for usage example

File: j01636.fasta

>J01636 J01636.1 E.coli lactose operon with lacI, lacZ, lacY and lacA genes.
gacaccatcgaatggcgcaaaacctttcgcggtatggcatgatagcgcccggaagagagt
caattcagggtggtgaatgtgaaaccagtaacgttatacgatgtcgcagagtatgccggt
gtctcttatcagaccgtttcccgcgtggtgaaccaggccagccacgtttctgcgaaaacg
cgggaaaaagtggaagcggcgatggcggagctgaattacattcccaaccgcgtggcacaa
caactggcgggcaaacagtcgttgctgattggcgttgccacctccagtctggccctgcac
gcgccgtcgcaaattgtcgcggcgattaaatctcgcgccgatcaactgggtgccagcgtg
gtggtgtcgatggtagaacgaagcggcgtcgaagcctgtaaagcggcggtgcacaatctt
ctcgcgcaacgcgtcagtgggctgatcattaactatccgctggatgaccaggatgccatt
gctgtggaagctgcctgcactaatgttccggcgttatttcttgatgtctctgaccagaca
cccatcaacagtattattttctcccatgaagacggtacgcgactgggcgtggagcatctg
gtcgcattgggtcaccagcaaatcgcgctgttagcgggcccattaagttctgtctcggcg
cgtctgcgtctggctggctggcataaatatctcactcgcaatcaaattcagccgatagcg
gaacgggaaggcgactggagtgccatgtccggttttcaacaaaccatgcaaatgctgaat
gagggcatcgttcccactgcgatgctggttgccaacgatcagatggcgctgggcgcaatg
cgcgccattaccgagtccgggctgcgcgttggtgcggatatctcggtagtgggatacgac
gataccgaagacagctcatgttatatcccgccgtcaaccaccatcaaacaggattttcgc
ctgctggggcaaaccagcgtggaccgcttgctgcaactctctcagggccaggcggtgaag
ggcaatcagctgttgcccgtctcactggtgaaaagaaaaaccaccctggcgcccaatacg
caaaccgcctctccccgcgcgttggccgattcattaatgcagctggcacgacaggtttcc
cgactggaaagcgggcagtgagcgcaacgcaattaatgtgagttagctcactcattaggc
accccaggctttacactttatgcttccggctcgtatgttgtgtggaattgtgagcggata
acaatttcacacaggaaacagctatgaccatgattacggattcactggccgtcgttttac
aacgtcgtgactgggaaaaccctggcgttacccaacttaatcgccttgcagcacatcccc
ctttcgccagctggcgtaatagcgaagaggcccgcaccgatcgcccttcccaacagttgc
gcagcctgaatggcgaatggcgctttgcctggtttccggcaccagaagcggtgccggaaa
gctggctggagtgcgatcttcctgaggccgatactgtcgtcgtcccctcaaactggcaga
tgcacggttacgatgcgcccatctacaccaacgtaacctatcccattacggtcaatccgc
cgtttgttcccacggagaatccgacgggttgttactcgctcacatttaatgttgatgaaa
gctggctacaggaaggccagacgcgaattatttttgatggcgttaactcggcgtttcatc
tgtggtgcaacgggcgctgggtcggttacggccaggacagtcgtttgccgtctgaatttg
acctgagcgcatttttacgcgccggagaaaaccgcctcgcggtgatggtgctgcgttgga
gtgacggcagttatctggaagatcaggatatgtggcggatgagcggcattttccgtgacg
tctcgttgctgcataaaccgactacacaaatcagcgatttccatgttgccactcgcttta
atgatgatttcagccgcgctgtactggaggctgaagttcagatgtgcggcgagttgcgtg
actacctacgggtaacagtttctttatggcagggtgaaacgcaggtcgccagcggcaccg
cgcctttcggcggtgaaattatcgatgagcgtggtggttatgccgatcgcgtcacactac
gtctgaacgtcgaaaacccgaaactgtggagcgccgaaatcccgaatctctatcgtgcgg
tggttgaactgcacaccgccgacggcacgctgattgaagcagaagcctgcgatgtcggtt
tccgcgaggtgcggattgaaaatggtctgctgctgctgaacggcaagccgttgctgattc
gaggcgttaaccgtcacgagcatcatcctctgcatggtcaggtcatggatgagcagacga
tggtgcaggatatcctgctgatgaagcagaacaactttaacgccgtgcgctgttcgcatt
atccgaaccatccgctgtggtacacgctgtgcgaccgctacggcctgtatgtggtggatg
aagccaatattgaaacccacggcatggtgccaatgaatcgtctgaccgatgatccgcgct
ggctaccggcgatgagcgaacgcgtaacgcgaatggtgcagcgcgatcgtaatcacccga
gtgtgatcatctggtcgctggggaatgaatcaggccacggcgctaatcacgacgcgctgt
atcgctggatcaaatctgtcgatccttcccgcccggtgcagtatgaaggcggcggagccg
acaccacggccaccgatattatttgcccgatgtacgcgcgcgtggatgaagaccagccct
tcccggctgtgccgaaatggtccatcaaaaaatggctttcgctacctggagagacgcgcc
cgctgatcctttgcgaatacgcccacgcgatgggtaacagtcttggcggtttcgctaaat


  [Part of this file has been deleted for brevity]

gttacccaacttaatcgccttgcagcacatccccctttcgccagctggcgtaatagcgaa
gaggcccgcaccgatcgcccttcccaacagttgcgcagcctgaatggcgaatggcgcttt
gcctggtttccggcaccagaagcggtgccggaaagctggctggagtgcgatcttcctgag
gccgatactgtcgtcgtcccctcaaactggcagatgcacggttacgatgcgcccatctac
accaacgtaacctatcccattacggtcaatccgccgtttgttcccacggagaatccgacg
ggttgttactcgctcacatttaatgttgatgaaagctggctacaggaaggccagacgcga
attatttttgatggcgttaactcggcgtttcatctgtggtgcaacgggcgctgggtcggt
tacggccaggacagtcgtttgccgtctgaatttgacctgagcgcatttttacgcgccgga
gaaaaccgcctcgcggtgatggtgctgcgttggagtgacggcagttatctggaagatcag
gatatgtggcggatgagcggcattttccgtgacgtctcgttgctgcataaaccgactaca
caaatcagcgatttccatgttgccactcgctttaatgatgatttcagccgcgctgtactg
gaggctgaagttcagatgtgcggcgagttgcgtgactacctacgggtaacagtttcttta
tggcagggtgaaacgcaggtcgccagcggcaccgcgcctttcggcggtgaaattatcgat
gagcgtggtggttatgccgatcgcgtcacactacgtctgaacgtcgaaaacccgaaactg
tggagcgccgaaatcccgaatctctatcgtgcggtggttgaactgcacaccgccgacggc
acgctgattgaagcagaagcctgcgatgtcggtttccgcgaggtgcggattgaaaatggt
ctgctgctgctgaacggcaagccgttgctgattcgaggcgttaaccgtcacgagcatcat
cctctgcatggtcaggtcatggatgagcagacgatggtgcaggatatcctgctgatgaag
cagaacaactttaacgccgtgcgctgttcgcattatccgaaccatccgctgtggtacacg
ctgtgcgaccgctacggcctgtatgtggtggatgaagccaatattgaaacccacggcatg
gtgccaatgaatcgtctgaccgatgatccgcgctggctaccggcgatgagcgaacgcgta
acgcgaatggtgcagcgcgatcgtaatcacccgagtgtgatcatctggtcgctggggaat
gaatcaggccacggcgctaatcacgacgcgctgtatcgctggatcaaatctgtcgatcct
tcccgcccggtgcagtatgaaggcggcggagccgacaccacggccaccgatattatttgc
ccgatgtacgcgcgcgtggatgaagaccagcccttcccggctgtgccgaaatggtccatc
aaaaaatggctttcgctacctggagagacgcgcccgctgatcctttgcgaatacgcccac
gcgatgggtaacagtcttggcggtttcgctaaatactggcaggcgtttcgtcagtatccc
cgtttacagggcggcttcgtctgggactgggtggatcagtcgctgattaaatatgatgaa
aacggcaacccgtggtcggcttacggcggtgattttggcgatacgccgaacgatcgccag
ttctgtatgaacggtctggtctttgccgaccgcacgccgcatccagcgctgacggaagca
aaacaccagcagcagtttttccagttccgtttatccgggcaaaccatcgaagtgaccagc
gaatacctgttccgtcatagcgataacgagctcctgcactggatggtggcgctggatggt
aagccgctggcaagcggtgaagtgcctctggatgtcgctccacaaggtaaacagttgatt
gaactgcctgaactaccgcagccggagagcgccgggcaactctggctcacagtacgcgta
gtgcaaccgaacgcgaccgcatggtcagaagccgggcacatcagcgcctggcagcagtgg
cgtctggcggaaaacctcagtgtgacgctccccgccgcgtcccacgccatcccgcatctg
accaccagcgaaatggatttttgcatcgagctgggtaataagcgttggcaatttaaccgc
cagtcaggctttctttcacagatgtggattggcgataaaaaacaactgctgacgccgctg
cgcgatcagttcacccgtgcaccgctggataacgacattggcgtaagtgaagcgacccgc
attgaccctaacgcctgggtcgaacgctggaaggcggcgggccattaccaggccgaagca
gcgttgttgcagtgcacggcagatacacttgctgatgcggtgctgattacgaccgctcac
gcgtggcagcatcaggggaaaaccttatttatcagccggaaaacctaccggattgatggt
agtggtcaaatggcgattaccgttgatgttgaagtggcgagcgatacaccgcatccggcg
cggattggcctgaactgccagctggcgcaggtagcagagcgggtaaactggctcggatta
gggccgcaagaaaactatcccgaccgccttactgccgcctgttttgaccgctgggatctg
ccattgtcagacatgtataccccgtacgtcttcccgagcgaaaacggtctgcgctgcggg
acgcgcgaattgaattatggcccacaccagtggcgcggcgacttccagttcaacatcagc
cgctacagtcaacagcaactgatggaaaccagccatcgccatctgctgcacgcggaagaa
ggcacatggctgaatatcgacggtttccatatggggattggtggcgacgactcctggagc
ccgtcagtatcggcggaattccagctgagcgccggtcgctaccattaccagttggtctgg
tgtcaaaaataataataa

Output files for usage example 2

File: j01636.fasta

>X51872 X51872.1 Escherichia coli lacA gene for thiogalactoside transacetylase
gtgaatgaagtcgcttaagcaatcaatgtcggatgcggcgcgacgcttatccgaccaaca
tatcataacggagtgatcgcattgaacatgccaatgaccgaaagaataagagcaggcaag
ctatttaccgatatgtgcgaaggcttaccggaaaaaagacttcgtgggaaaacgttaatg
tatgagtttaatcactcgcatccatcagaagttgaaaaaagagaaagcctgattaaagaa
atgtttgccacggtaggggaaaacgcctgggtagaaccgcctgtctatttctcttacggt
tccaacatccatataggccgcaatttttatgcaaatttcaatttaaccattgtcgatgac
tacacggtaacaatcggtgataacgtactgattgcacccaacgttactctttccgttacg
ggacaccctgtacaccatgaattgagaaaaaacggcgagatgtactcttttccgataacg
attggcaataacgtctggatcggaagtcatgtggttattaatccaggcgtcaccatcggg
gataattctgttattggcgcgggtagtatcgtcacaaaagacattccaccaaacgtcgtg
gcggctggcgttccttgtcgggttattcgcgaaataaacgaccgggataagcactattat
ttcaaagattataaagttgaatcgtcagtttaaattataaaaattgcctgatacgctgcg
cttatcaggcctacaagttcagcgatctacattagccgcatccggcatgaacaaagcgca
ggaacaagcgtcgcatcatgcctctttgacccacagctgcggaaaacgtactggtgcaaa
acgcagggttatgatcatcagcccaacgacgcacagcgcatgaaatgcccagtccatcag
gtaattgccgctgatactacgcagcacgccagaaaaccacggggcaagcccggcgatgat
aaaaccgattccctgcataaacgccaccagcttgccagcaatagccggttgcacagagtg
atcgagcgccagcagcaaacagagcggaaacgcgccgcccagacctaacccacacaccat
cgcccacaataccggcaattgcatcggcagccagataaagccgcagaaccccaccagttg
taacaccagcgccagcattaacagtttgcgccgatcctgatggcgagccatagcaggcat
cagcaaagctcctgcggcttgcccaagcgtcatcaatgccagtaaggaaccgctgtactg
cgcgctggcaccaatctcaatatagaaagcgggtaaccaggcaatcaggctggcgtaacc
gccgttaatcagaccgaagtaaacacccagcgtccacgcgcggggagtgaataccacgcg
aaccggagtggttgttgtcttgtgggaagaggcgacctcgcgggcgctttgccaccacca
ggcaaagagcgcaacaacggcaggcagcgccaccaggcgagtgtttgataccaggtttcg
ctatgttgaactaaccagggcgttatggcggcaccaagcccaccgccgcccatcagagcc
gcggaccacagccccatcaccagtggcgtgcgctgctgaaaccgccgtttaatcaccgaa
gcatcaccgcctgaatgatgccgatccccaccccaccaagcagtgcgctgctaagcagca
gcgcactttgcgggtaaagctcacgcatcaatgcaccgacggcaatcagcaacagactga
tggcgacactgcgacgttcgctgacatgctgatgaagccagcttccggccagcgccagcc
cgcccatggtaaccaccggcagagcggtcgac
>V00294 V00294.1 E. coli laci gene (codes for the lac repressor).
ccggaagagagtcaattcagggtggtgaatgtgaaaccagtaacgttatacgatgtcgca
gagtatgccggtgtctcttatcagaccgtttcccgcgtggtgaaccaggccagccacgtt
tctgcgaaaacgcgggaaaaagtggaagcggcgatggcggagctgaattacattcccaac
cgcgtggcacaacaactggcgggcaaacagtcgttgctgattggcgttgccacctccagt
ctggccctgcacgcgccgtcgcaaattgtcgcggcgattaaatctcgcgccgatcaactg
ggtgccagcgtggtggtgtcgatggtagaacgaagcggcgtcgaagcctgtaaagcggcg
gtgcacaatcttctcgcgcaacgcgtcagtgggctgatcattaactatccgctggatgac
caggatgccattgctgtggaagctgcctgcactaatgttccggcgttatttcttgatgtc
tctgaccagacacccatcaacagtattattttctcccatgaagacggtacgcgactgggc
gtggagcatctggtcgcattgggtcaccagcaaatcgcgctgttagcgggcccattaagt
tctgtctcggcgcgtctgcgtctggctggctggcataaatatctcactcgcaatcaaatt
cagccgatagcggaacgggaaggcgactggagtgccatgtccggttttcaacaaaccatg
caaatgctgaatgagggcatcgttcccactgcgatgctggttgccaacgatcagatggcg
ctgggcgcaatgcgcgccattaccgagtccgggctgcgcgttggtgcggatatctcggta
gtgggatacgacgataccgaagacagctcatgttatatcccgccgtcaaccaccatcaaa
caggattttcgcctgctggggcaaaccagcgtggaccgcttgctgcaactctctcagggc
caggcggtgaagggcaatcagctgttgcccgtctcactggtgaaaagaaaaaccaccctg


  [Part of this file has been deleted for brevity]

gttacccaacttaatcgccttgcagcacatccccctttcgccagctggcgtaatagcgaa
gaggcccgcaccgatcgcccttcccaacagttgcgcagcctgaatggcgaatggcgcttt
gcctggtttccggcaccagaagcggtgccggaaagctggctggagtgcgatcttcctgag
gccgatactgtcgtcgtcccctcaaactggcagatgcacggttacgatgcgcccatctac
accaacgtaacctatcccattacggtcaatccgccgtttgttcccacggagaatccgacg
ggttgttactcgctcacatttaatgttgatgaaagctggctacaggaaggccagacgcga
attatttttgatggcgttaactcggcgtttcatctgtggtgcaacgggcgctgggtcggt
tacggccaggacagtcgtttgccgtctgaatttgacctgagcgcatttttacgcgccgga
gaaaaccgcctcgcggtgatggtgctgcgttggagtgacggcagttatctggaagatcag
gatatgtggcggatgagcggcattttccgtgacgtctcgttgctgcataaaccgactaca
caaatcagcgatttccatgttgccactcgctttaatgatgatttcagccgcgctgtactg
gaggctgaagttcagatgtgcggcgagttgcgtgactacctacgggtaacagtttcttta
tggcagggtgaaacgcaggtcgccagcggcaccgcgcctttcggcggtgaaattatcgat
gagcgtggtggttatgccgatcgcgtcacactacgtctgaacgtcgaaaacccgaaactg
tggagcgccgaaatcccgaatctctatcgtgcggtggttgaactgcacaccgccgacggc
acgctgattgaagcagaagcctgcgatgtcggtttccgcgaggtgcggattgaaaatggt
ctgctgctgctgaacggcaagccgttgctgattcgaggcgttaaccgtcacgagcatcat
cctctgcatggtcaggtcatggatgagcagacgatggtgcaggatatcctgctgatgaag
cagaacaactttaacgccgtgcgctgttcgcattatccgaaccatccgctgtggtacacg
ctgtgcgaccgctacggcctgtatgtggtggatgaagccaatattgaaacccacggcatg
gtgccaatgaatcgtctgaccgatgatccgcgctggctaccggcgatgagcgaacgcgta
acgcgaatggtgcagcgcgatcgtaatcacccgagtgtgatcatctggtcgctggggaat
gaatcaggccacggcgctaatcacgacgcgctgtatcgctggatcaaatctgtcgatcct
tcccgcccggtgcagtatgaaggcggcggagccgacaccacggccaccgatattatttgc
ccgatgtacgcgcgcgtggatgaagaccagcccttcccggctgtgccgaaatggtccatc
aaaaaatggctttcgctacctggagagacgcgcccgctgatcctttgcgaatacgcccac
gcgatgggtaacagtcttggcggtttcgctaaatactggcaggcgtttcgtcagtatccc
cgtttacagggcggcttcgtctgggactgggtggatcagtcgctgattaaatatgatgaa
aacggcaacccgtggtcggcttacggcggtgattttggcgatacgccgaacgatcgccag
ttctgtatgaacggtctggtctttgccgaccgcacgccgcatccagcgctgacggaagca
aaacaccagcagcagtttttccagttccgtttatccgggcaaaccatcgaagtgaccagc
gaatacctgttccgtcatagcgataacgagctcctgcactggatggtggcgctggatggt
aagccgctggcaagcggtgaagtgcctctggatgtcgctccacaaggtaaacagttgatt
gaactgcctgaactaccgcagccggagagcgccgggcaactctggctcacagtacgcgta
gtgcaaccgaacgcgaccgcatggtcagaagccgggcacatcagcgcctggcagcagtgg
cgtctggcggaaaacctcagtgtgacgctccccgccgcgtcccacgccatcccgcatctg
accaccagcgaaatggatttttgcatcgagctgggtaataagcgttggcaatttaaccgc
cagtcaggctttctttcacagatgtggattggcgataaaaaacaactgctgacgccgctg
cgcgatcagttcacccgtgcaccgctggataacgacattggcgtaagtgaagcgacccgc
attgaccctaacgcctgggtcgaacgctggaaggcggcgggccattaccaggccgaagca
gcgttgttgcagtgcacggcagatacacttgctgatgcggtgctgattacgaccgctcac
gcgtggcagcatcaggggaaaaccttatttatcagccggaaaacctaccggattgatggt
agtggtcaaatggcgattaccgttgatgttgaagtggcgagcgatacaccgcatccggcg
cggattggcctgaactgccagctggcgcaggtagcagagcgggtaaactggctcggatta
gggccgcaagaaaactatcccgaccgccttactgccgcctgttttgaccgctgggatctg
ccattgtcagacatgtataccccgtacgtcttcccgagcgaaaacggtctgcgctgcggg
acgcgcgaattgaattatggcccacaccagtggcgcggcgacttccagttcaacatcagc
cgctacagtcaacagcaactgatggaaaccagccatcgccatctgctgcacgcggaagaa
ggcacatggctgaatatcgacggtttccatatggggattggtggcgacgactcctggagc
ccgtcagtatcggcggaattccagctgagcgccggtcgctaccattaccagttggtctgg
tgtcaaaaataataataa

See the documentation for seqret to see the full range of things that you can do when reading and writing sequences.

Data files

None.

Notes

See the documentation for seqret to see the full range of things that you can do when reading and writing sequences.

seqret has an option to allow it to only read the first sequence from a multiple set of sequences (-firstonly). seqret cannot, however, skip the first few sequences from a multiple set of sequence, writing out the rest; this is what skipseq is for.

References

None.

Warnings

You may skip all of the input files.
If the -skip value is greater than or equal to the number of input sequences, there is no warning: this is legal.

Diagnostic Error Messages

None.

Exit status

It always exits with status 0.

Known bugs

None.

See also

Program name Description
aligncopy Read and write alignments
aligncopypair Read and write pairs from alignments
biosed Replace or delete sequence sections
codcopy Copy and reformat a codon usage table
cutseq Remove a section from a sequence
degapseq Remove non-alphabetic (e.g. gap) characters from sequences
descseq Alter the name or description of a sequence
entret Retrieve 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 Read and write a feature table
featmerge Merge two overlapping feature tables
featreport Read and write 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 Mask all ambiguity characters in nucleotide sequences with N
maskambigprot Mask 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
noreturn Remove carriage return from ASCII files
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 Read and write (return) one set of sequences from many
pasteseq Insert one sequence into another
revseq Reverse and complement a nucleotide sequence
seqcount Read and count sequences
seqret Read and write (return) sequences
seqretsetall Read and write (return) many sets of sequences
seqretsplit Read sequences and write them to individual files
sizeseq Sort sequences by size
skipredundant Remove redundant sequences from an input set
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 Remove vectors from the ends of nucleotide sequence(s)
yank Add a sequence reference (a full USA) to a list file

skipseq is a variant of the standard program for reading and writing sequences, seqret.

Author(s)

Peter Rice
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 (25 June 2002) - Peter Rice

Target users

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

Comments

None