| More docs on the ARB website. See also index of helppages. Last update on 24. Jun 2017 .

Main topics:

- ARB: a Short Introduction
- Glossary

Related topics:

- ARB: Basic ARB-Shell Commands

# How to fix an 'exec' problem ?

- OCCURRENCE
- DESCRIPTION
- WHAT TO DO
- WARNINGS
- BUGS

## OCCURRENCE

### NDS + ACI exec - command

## DESCRIPTION

### If you use the exec command in the NDS window then you might have to wait extremely long:

number of species * execution time of the command (5000 species, 1.5 sec/exec) -> 2 hour waiting.

## WHAT TO DO

### The only way the to remove the exec command is: run arb_panic on any shell save the database to /tmp/panic.arb edit /tmp/panic.arb search the exec command replace it by the 'echo' command save file test it with 'arb /tmp/panic.arb' If everything works fine save it in your home directory enter 'arb_clean' on any shell remove /tmp/panic.arb

## WARNINGS

### Test your database very carefully because it may not be consistent. Check sequence checksum

## BUGS

### No bugs known