In Unix-like operating systems, unlink is a system call and a command line utility to delete files. The program directly interfaces the system call, which removes the file name and (but not on GNU systems) directories like rm and rmdir.

Use of unlinked genetic markers to detect population stratification in association studies.
Association between two unlinked loci at 8q24 and prostate cancer risk among European Americans.
Unlinked noncomplementation: isolation of new conditional-lethal mutations in each of the tubulin genes of Saccharomyces cerevisiae.
A trans-acting class II regulatory gene unlinked to the MHC controls expression of HLA class II genes.
Digenic Retinitis Pigmentosa Due to Mutations at the Unlinked Peripherin/ RDS and ROM1 Loci
The neu gene: an erbB-homologous gene distinct from and unlinked to the gene encoding the EGF receptor.
Prevalence of maternal HIV-1 infection in Thames Regions: results from anonymous unlinked neonatal testing
Production of aberrant promoter transcripts contributes to methylation and silencing of unlinked homologous promoters in trans
Studies on the properties of P1 site-specific recombination: Evidence for topologically unlinked products following recombination
[Prophage induction and cell division in E. coli. II. Linked (recA, zab) and unlinked (lex) suppressors of tif-1-mediated induction ...