SAC Command Reference Manual

WRITEHDR

SUMMARY

Overwrites the headers on disk with those in memory.

SYNTAX

WRITEHDR

DESCRIPTION

The data on disk is NOT overwritten by this command. Use the WRITE OVER command to overwrite headers and data. The WRITEHDR command should NEVER be used if the CUT option is on. The header in memory is modified to reflect the effects of the CUT, but the data on disk is not modified. Use of the WRITEHDR command on cut data files will have the effect of apparently shifting and truncating the data on disk in time.

ERROR MESSAGES

  • 1301: No data files read in.

HEADER CHANGES

Updates headers on disk.

LIMITATIONS

See description above about use of CUT and WRITEHDR.

SEE COMMANDS

CUT, WRITE

LATEST REVISION

Oct. 27, 1998 (Version 0.58)