Connect Tech NT960/PCI Instrucciones de operaciones descargar pdf (Pagina 49)

SEA M300USERSGUIDE

GENERALINFORMATION



1. In a QNX shell type gzip filename where ‘filename’ is the file you wish to compress. For

example, gzip seam300.tar will compress the file ‘seam300.tar’.

2. Type ls -a. The compressed file should have the extension ‘.gz’ appended to the end of it.

To decompress files.

1. In a QNX shell, type gunzip filename where ‘filename’ is the file you wish to compress. For

example, gunzip seam300.tar.gz will decompress the file ‘seam300.tar.gz’.

2. Type ls -a. The compressed file should have the extension ‘.gz’ removed from the end of it.

To compress a file (for example, 120101.sea) keeping the original file, use gzip -c 120101.sea

>120101.sea.gz

Note: Forfurtherdetailsonusingthegzip/gunziputilities,refertotheQNX4documentation

(See “Getting

Help for QNX 4 and Photon” on page 31).

GROUPING/UNGROUPINGFILES(THE‘TAR’UTILITY)

To group a set of files, in order to keep files permissions.

1. In the directory containing the files you wish to group, type tar -cvf tarfile.tar

filenames

where ‘tarfile.tar’ is the filename of the tar file to be created and ‘filenames’ are the

filenames, one after the other separated by a space, of the files that are to be grouped into

‘tarfile.tar’. For example, tar -cvf seam300.tar * Note that this example will create a tar file

called ‘seam300.tar’ and the ‘*’ in the command sentence instructs QNX to use all of the files in

that particular directory.

2. Type ls -a to verify that the tar file has been created.

To group all files in the current directory excluding ‘*.sea’ files use:

1. In the directory containing the files you wish to group, type find ! -name ‘*.sea’ -type f

| xargs tar -cvf tarfile.tar

where ‘tarfile.tar’ is the filename of the tar file to be created.

2. Type ls -a to verify that the tar file has been created.

To un-group a set of files.

1. In the directory where you wish the files to be ungrouped, type tar -xvf tarfile.tar where

‘tarfile.tar’ is the filename of the tar file to be ungrouped. For example,

tar -xvf seam300.tar

Note that this example will ungroup the file ‘seam300.tar’ into the current directory.

2. Type

ls -a to verify that the tar files have been ungrouped.

Note: Forfurtherdetailsonusingthetarutility,refertotheQNX4documentation(See “Getting Help for

QNX 4 and Photon” on page 31).

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Connect Tech NT960/PCI Instrucciones de operaciones Pagina 49