Section 1 of the manual describes user commands and tools, for example, file manipulation tools, shells, compilers, web browsers, file and image viewers and editors, and so on.

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NAST-iEr
nast-ier - NAST-based DNA alignment tool
NCLconverter
report of content of NEXUS file
NDist
AmpliconNoise - remove noise from high throughput nucleotide sequence data
NEXUSnormalizer
rewrites NEXUS file to standard out with consistent indentation and syntax
NEXUSvalidator
validate NEXUS file
NF
col1 .. col9, NF - awk and print a column (based on the name of the program, 1-9)  
NIfTI1ToDicom
Read a NIfTI-1 image input format files and create an image of a specified or appropriate SOP Class
NPlam
NetPIPE - Net work
NPlam2
NetPIPE - Net work
NPmpich2
NetPIPE - Net work
NPopenmpi
NetPIPE - Net work
NPopenmpi2
NetPIPE - Net work
NPpvm
NetPIPE - Net work
NPtcp
NetPIPE - Net work
NRRDToDicom
Read an NRRD image input format files and create an image of a specified or appropriate SOP Class
NRswitchg
For each v, complement the edges from N(v) to V(G)-N(v)-v
NSBrowserTest
gnustep-examples - various example GNUstep tools/applications  
NSImageTest
gnustep-examples - various example GNUstep tools/applications  
NSPanelTest
gnustep-examples - various example GNUstep tools/applications  
NSScreenTest
gnustep-examples - various example GNUstep tools/applications  
NanoFilt
filtering and trimming of long read sequencing data
NanoLyse
remove lambda phage reads from a fastq file
NanoSV
structural variant caller for the Nanopore
NanoStat
manual page for NanoStat 1.4.0
NitrokeyAuthenticator
TOTP authenticator application for Nitrokey Pro2 and LibremKey
NoiseFilterGaussian
topp - library for LC/MS data management and analysis - tools  
NoiseFilterSGolay
topp - library for LC/MS data management and analysis - tools  
NovorAdapter
topp - library for LC/MS data management and analysis - tools  
NucleicAcidSearchEngine
topp - library for LC/MS data management and analysis - tools  
OMSSAAdapter
topp - library for LC/MS data management and analysis - tools  
ONE2LA
daligner - local alignment discovery between long nucleotide sequencing reads
OSCAR
Open Source CPAP Analysis Reporter  
OgreMeshUpgrader
OgreMeshUpgrade - upgrades .mesh files to the latest version
OgreXMLConverter
converts data between XML and Ogre binary formats
OpenBoard
cross-platform Interactive White-Board Application
OpenJazz
Jack Jazzrabbit 1 game engine reimplementation
OpenMSInfo
topp - library for LC/MS data management and analysis - tools  
OpenPepXL
topp - library for LC/MS data management and analysis - tools  
OpenPepXLLF
topp - library for LC/MS data management and analysis - tools  
OpenSwathAnalyzer
topp - library for LC/MS data management and analysis - tools  
OpenSwathAssayGenerator
topp - library for LC/MS data management and analysis - tools  
OpenSwathChromatogramExtractor
topp - library for LC/MS data management and analysis - tools  
OpenSwathConfidenceScoring
topp - library for LC/MS data management and analysis - tools  
OpenSwathDIAPreScoring
topp - library for LC/MS data management and analysis - tools  
OpenSwathDecoyGenerator
topp - library for LC/MS data management and analysis - tools  
OpenSwathFeatureXMLToTSV
topp - library for LC/MS data management and analysis - tools  
OpenSwathFileSplitter
topp - library for LC/MS data management and analysis - tools  
OpenSwathMzMLFileCacher
topp - library for LC/MS data management and analysis - tools  
OpenSwathRTNormalizer
topp - library for LC/MS data management and analysis - tools  
OpenSwathRewriteToFeatureXML
topp - library for LC/MS data management and analysis - tools  
OpenSwathWorkflow
topp - library for LC/MS data management and analysis - tools  
OrthancWSIDicomToTiff
Whole-slide imaging support for Orthanc
OrthancWSIDicomizer
Whole-slide imaging support for Orthanc
PCPCompat
PCPCompat , pcp-collectl , pmmgr , pmwebd - backward-compatibility in the Performance Co-Pilot (PCP)
PCPIntro
introduction to the Performance Co-Pilot (PCP)
PCP_KUBE_PODS
pcp-kube-pods - list Kubernetes pods to scan for running PCP services
PCx
primal-dual interior-point code for linear programming
PDFToDicomImage
Read PDF file, and create a single or multi frame DICOM Secondary Capture image with one frame per page
PDL::API
making ndarrays from Perl and C/XS code
PDL::BadValues
Discussion of bad value support in PDL
PDL::Broadcasting
Tutorial for PDL's Broadcasting feature
PDL::Course
A journey through PDL's documentation, from beginner to advanced
PDL::Dataflow
- description of the dataflow implementation and philosophy
PDL::FAQ
Frequently asked questions about PDL
PDL::Graphics
Introduction to the PDL::Graphics modules
PDL::Indexing
Introduction to indexing and slicing ndarrays
PDL::Internals
description of some aspects of the current internals
PDL::MATLAB
A guide for MATLAB users
PDL::Modules
A guide to PDL's module reference
PDL::Objects
- Object-Orientation, what is it and how to exploit it
PDL::PP-Inline
Inline::Pdlpp - Write PDL Subroutines inline with PDL::PP
PDL::PP
Generate PDL routines from concise descriptions
PDL::ParallelCPU
Parallel processor multi-threading support in PDL
PDL::Philosophy
- Why did we write PDL?
PDL::QuickStart
Quick introduction to PDL features
PDL::Scilab
A guide for Scilab users
PDL::Tips
Small tidbits of useful arcana. Programming tidbits and such
PDL::Tutorials
A guide to PDL's tutorial documentation
PDRFoam
part of OpenFOAM (The Open Source CFD Toolbox)
PDRMesh
part of OpenFOAM (The Open Source CFD Toolbox)
PDRblockMesh
part of OpenFOAM (The Open Source CFD Toolbox)
PDRsetFields
part of OpenFOAM (The Open Source CFD Toolbox)
PGPOOL_RESET
restore the value of a configuration parameter to the default value
PGPOOL_SET
change a configuration parameter
PGPOOL_SHOW
show the value of a configuration parameter
POST
lwp-request - Simple command line user agent
POWplot
vizualize FITS data
PParse
xerces-c - xerces-c sample program
PRICE
image filtering and manipulation
PSMFeatureExtractor
topp - library for LC/MS data management and analysis - tools  
PSVIWriter
xerces-c - xerces-c sample program
PTAInterpolate
Interpolate intermediate images between stereo photos
PTBatcherGUI
Hugin batch processor
PTModel
topp - library for LC/MS data management and analysis - tools  
PTPredict
topp - library for LC/MS data management and analysis - tools  
PTblender
Colour and brightness correction of panoramas
PTcrop
Crop TIFF images
PTinfo
Display information about a panotools-generated image
PTmasker
Compute stitching masks
PTmender
Replacement for PTStitcher