Answers.Body: <p>Use either generic *NIX <code>cut</code> (you do not need a delimiter if you use <code>-c</code> option) or <code>head</code> tools. Even better, use any of a number of bioinformatics tools for sequence manipulation, such as EMBOSS <code>extractseq</code>.</p>
  <p><strong>EXAMPLES:</strong></p>
  <pre><code># Write into file output.txt characters 1-20 from each line of file input.txt:
  cut -c1-20 input.txt &gt; output.txt
  
  # Write the first 5 lines of input.txt:
  head -n5 input.txt &gt; output.txt
  
  # It is easier if you have your sequence in fasta format.
  # Write characters 1..20 and 100-110 from input.fasta to output.fasta:
  extractseq input.fasta output.fasta -regions &quot;1-20 100-110&quot; 
  </code></pre>
  <hr />
  <p>One of the easy ways to install EMBOSS suite is using <code>conda</code> (from bioconda channel).</p>
  <p><strong>SEE ALSO:</strong></p>
  <p>EMBOSS <code>extractseq</code> help: <a href="https://www.bioinformatics.nl/cgi-bin/emboss/help/extractseq" rel="nofollow noreferrer">https://www.bioinformatics.nl/cgi-bin/emboss/help/extractseq</a></p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-08-08T20:32:16.893Z
Answers.LastActivityDate: 2020-08-08T20:32:16.893Z
Answers.UserDisplayName: Timur Shtatland
Body: <p>I need to use the cut command on a human insulin sequence row wise but i don't know the command.I already ran byte wise command but the gave me column wise results. I cant use the -f option since i need to use a delimiter with it and the seq does not have any delimiters.
  please answer asap</p>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2020-08-08T13:41:41.603Z
Comments.Text: Could you please show the commands you tried so far and how the result should looks like? If you could give a simple example of how your data, it would be a good help to understand your problem.
Comments.UserDisplayName: Mr_Z
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2020-08-10T10:37:46.950Z
Comments.Text: `cut` is a linux command, but might not do what you intend. Could you please describe your problem with greater clarity?
Comments.UserDisplayName: M__
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2020-08-12T08:19:03.460Z
Comments.Text: I have an assignment where i have to use Linux commands on a bioinformatics problem i choose  to cut sort and uniq the sequence. however the cut command worked for byte wise cutting but not field wise since fields dont exist in a seq. also can someone tell me why do we sort a seq because wouldn't that result in a mutation.
Comments.UserDisplayName: Nargis Naqvi
Tags: <linux>
Title: DNA seq cutting using Linux
ThreadText: # DNA seq cutting using Linux
  
  (Asked by: username_0 on 2020-08-08)
  
  I need to use the cut command on a human insulin sequence row wise but i don't know the command.I already ran byte wise command but the gave me column wise results. I cant use the -f option since i need to use a delimiter with it and the seq does not have any delimiters.
  please answer asap
  
  **Tags:** linux
  
  > **Comments:**
  > **username_1**: Could you please show the commands you tried so far and how the result should looks like? If you could give a simple example of how your data, it would be a good help to understand your problem.  
  > **username_2**: `cut` is a linux command, but might not do what you intend. Could you please describe your problem with greater clarity?  
  > **username_0**: I have an assignment where i have to use Linux commands on a bioinformatics problem i choose  to cut sort and uniq the sequence. however the cut command worked for byte wise cutting but not field wise since fields dont exist in a seq. also can someone tell me why do we sort a seq because wouldn't that result in a mutation.  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_3 on 2020-08-08. Score: 0 | Accepted answer
  
  Use either generic \*NIX `cut` (you do not need a delimiter if you use `-c` option) or `head` tools. Even better, use any of a number of bioinformatics tools for sequence manipulation, such as EMBOSS `extractseq`.
  
  **EXAMPLES:**
  
  ```
  # Write into file output.txt characters 1-20 from each line of file input.txt:
  cut -c1-20 input.txt > output.txt
  
  # Write the first 5 lines of input.txt:
  head -n5 input.txt > output.txt
  
  # It is easier if you have your sequence in fasta format.
  # Write characters 1..20 and 100-110 from input.fasta to output.fasta:
  extractseq input.fasta output.fasta -regions "1-20 100-110" 
  
  ```
  
  ---
  
  One of the easy ways to install EMBOSS suite is using `conda` (from bioconda channel).
  
  **SEE ALSO:**
  
  EMBOSS `extractseq` help: <https://www.bioinformatics.nl/cgi-bin/emboss/help/extractseq>
  
  
  ---
  
  