ns_sha1 - Returns a 40-character, hex-encoded string containing the SHA1 hash of the first argument
A cryptographic hash (sometimes called digest) is a kind of signature for a text or a data file. SHA1 generates an almost-unique 160-bit signature for a text.
Compute an SHA1 checksum from the provided string. When the option -binary is used, the Tcl byte array value of the provided input argument is used and no UTF-8 interpretation is performed.
nscp 2> ns_sha1 test A94A8FE5CCB19BA61C4C0873D391E987982FBBD3