---
name: "delhead"
section: "1"
platform: "linux"
package: "wcstools"
version: "3.9.7-1.1+b1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/delhead"
---

# delhead(1)

Set FITS or IRAF header keyword values

## Name

delhead - Set FITS or IRAF header keyword values

## Synopsis

delhead \[-nv\] \<FITS or IRAF file\[s\]\> kw1 kw2 ... kwn

## Description

Delete keyword entries from the header of FITS or IRAF image\[s\].  If a keyword does not already exist, ignore it.  To delete keywords in a list of files, substitute @\<listfile\> for the file names on the command line.  To delete a lot of keywords, put them, one per line, in a file and substitute @\<keylistfile\> on the command line.  If two @ commands are present, the program will figure out which contains file names and which contains keywords.

## Options

- **-n**

  Write a new file with an added "e" before the extension.  The default is to overwrite the input file.

- **-v**

  Print confirmations of each parameter setting

## Web page

http://tdc-www.harvard.edu/software/wcstools/delhead.html

## Author

Jessica Mink, SAO (jmink@cfa.harvard.edu)