touch

7.2.16 touch

Create a file or modify attributes of an existing file.

Syntax

touch [{ -w | --wallet } wallet-location ] 
      [ -s num | --size=num ] 
      [ -t ftype | --type=ftype ] 
      [ -r { true | false } | --read-only={ true | false }] 
      [{ -T | --trace } trace-level ] filename

Command Options

The options for the touch command are:

filename: Specifies the file being created or modified.
-w, --wallet: Optionally specifies the path to the Exascale wallet directory.
-s, --size: Optionally specifies the size of the file in bytes.

The file size can be also specified using suffixes K, KB, M, MB, G, GB, T, TB. The suffix is not case-sensitive.
-t, --ftype: Optionally specifies the Oracle Database file type. The valid values are:
- ctrl - control file
- data - data file
- olog - on-line log file
- alog - archived log file
- temp - temporary sort file
- init - initialization parameter file
- pswd - password file
- flog - flashback log file
- ctrk - change tracking file
-r, --read-only: Optionally specifies that the file is read-only. When set to true, the file contents and metadata cannot be modified.
-T, --trace: Optionally enables tracing and sets the trace level to 1 (minimum tracing), 2 (medium tracing), or 3 (maximum tracing).

If the $ADR_BASE environment variable is set, the trace file is written to:
```
$ADR_BASE/diag/EXC/xsh_<username>/<hostname>/trace/xsh_<date>.trc
```
Otherwise, the trace file is written to:
```
/tmp/diag/EXC/xsh_<username>/<hostname>/trace/xsh_<date>.trc
```

Examples

Example 7-20 Create an Exascale file

Assuming that @DATA/myfile does not already exist, the following example creates a 1 gigabyte file at @DATA/myfile.

$ xsh touch --size=1G @DATA/myfile

If the file (@DATA/myfile) already existed, the command would set the size of the preexisting file to 1 gigabyte.

Parent topic: XSH Command Reference