|   | EDIT | 
Sequence editing
| 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 | 
| 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 | 
| noreturn | Remove carriage return from ASCII files | 
| nospace | Remove all 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 | 
| pasteseq | Insert one sequence into another | 
| revseq | Reverse and complement a nucleotide sequence | 
| seqret | Reads and writes (returns) 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 | 
| 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 |