ORACLE: unary operator expected

Source: Internet
Author: User

When the centos system is switched from the root user to Oracle, the following message is always displayed:
-Bash-: [: unary operator expected
If the switchover succeeds, the above message is displayed. Later, the reason is found. When installing the Oracle software, the following content is set in the/etc/profile file:

If [$ user = "oracle"]; then if [$ shell = "/bin/KSh"]; then ulimit-P 16384 ulimit-N 65536 else ulimit-u 16384-N 65536 Fifi

Modify it as follows,It is changed to two brackets,Problems no longer occur:

If [[$ user = "oracle"]; then if [[$ shell = "/bin/KSh"]; then ulimit-P 16384 ulimit-N 65536 else ulimit-u 16384-N 65536 Fifi

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