:orphan:
# PetscLs
produce a listing of the files in a directory 
## Synopsis
```
PetscErrorCode PetscLs(MPI_Comm comm, const char dirname[], char found[], size_t tlen, PetscBool *flg)
```
Collective


## Input Parameters

- ***comm -*** the MPI communicator
- ***dirname -*** the directory name
- ***tlen -*** the length of the buffer `found`



## Output Parameters

- ***found -*** listing of files
- ***flg -*** the directory exists





## See Also
 `PetscTestFile()`, `PetscRMTree()`, `PetscTestDirectory()`

## Level
intermediate

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/sys/fileio/ftest.c.html#PetscLs">src/sys/fileio/ftest.c</A>


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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/sys/fileio/ftest.c)


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