Check for file existence

A discussion of Co:Z sftp, a port of OpenSSH sftp for z/OS
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Check for file existence

Post by pnguyen2020 » Mon Jul 13, 2020 9:45 am

I want to issue the lrecl directive on a file only if the file does not exist. Is it possible to check for the existence of a file in sftp?

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Re: Check for file existence

Post by dovetail » Mon Jul 13, 2020 2:54 pm

If you do this from a remote SFTP client connected to Co:Z SFTP server:

ls /+recfm=fb,lrecl=1028,space=cyl.2.1
put local.file //HLQ.DSN

- The recfm, lrecl, space settings will only be used if the data set does not exist.

See table B.3 here: ... ns_bpxwdyn
If you note, most allocation options do not apply for writing to existing data sets.

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