For loop error Post: 303043810

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Top Forums UNIX for Beginners Questions & Answers For loop error Post 303043810 by RudiC on Friday 7th of February 2020 09:13:20 AM

02-07-2020

Registered User

Difficult ... where to start?
Well, this is what (including some inconsistencies) I get from your code snippet after having eliminated the gravest syntax problems:

Code:

$ cat /tmp/output.txt
test_[name]_[service1]_[1]
.
.
.
test_[name]_[service15]_[6]
test_[sh1]_[service1]_[1]
.
.
.
test_[sh1]_[service1]_[6]
test_[sh1]_[service15]_[1]
.
.
.
test_[sh1]_[service15]_[6]
test_[sh16]_[service1]_[1]

The largest problem seems to be the test_[$i]_[$j]_[$k] =cat /tmp/filename.txt | grep $i | grep $j | grep $k | wc -l:
- that ...[...]...[...]... is not a construct known to me, at least in the most commen shells. BTW, what's your shell? You forgot to mention...
- (common) shells don't like a space around the = . That's the reason for your error msg.
- the cat ...pipe needs to be run in a "command substitution" $(...) (c.f. man bash or your shell's man page)

You seem to have missed the "expansion" of the variable in the echo statement.
I don't see any relation to your output sample from the structure of your script. And, there's no service16 mentioned anywhere except in your output.

Aside: be aware of "false positives" (like sh1 matching sh1 AND sh16).

RudiC

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kvno

KVNO(1) 							   MIT Kerberos 							   KVNO(1)

NAME

       kvno - print key version numbers of Kerberos principals

SYNOPSIS

       kvno [-c ccache] [-e etype] [-q] [-h] [-P] [-S sname] [-U for_user] service1 service2 ...

DESCRIPTION

       kvno acquires a service ticket for the specified Kerberos principals and prints out the key version numbers of each.

OPTIONS

       -c ccache
	      Specifies the name of a credentials cache to use (if not the default)

       -e etype
	      Specifies  the enctype which will be requested for the session key of all the services named on the command line.  This is useful in
	      certain backward compatibility situations.

       -q     Suppress printing output when successful.  If a service ticket cannot be obtained, an error message will still be printed  and  kvno
	      will exit with nonzero status.

       -h     Prints a usage statement and exits.

       -P     Specifies  that  the  service1  service2 ...  arguments are to be treated as services for which credentials should be acquired using
	      constrained delegation.  This option is only valid when used in conjunction with protocol transition.

       -S sname
	      Specifies that the service1 service2 ... arguments are interpreted as hostnames, and the service principals are  to  be  constructed
	      from  those hostnames and the service name sname.  The service hostnames will be canonicalized according to the usual rules for con-
	      structing service principals.

       -U for_user
	      Specifies that protocol transition (S4U2Self) is to be used to acquire a ticket on behalf of for_user.  If constrained delegation is
	      not requested, the service name must match the credentials cache client principal.

ENVIRONMENT

       kvno uses the following environment variable:

       KRB5CCNAME
	      Location of the credentials (ticket) cache.

FILES

       FILE:/tmp/krb5cc_%{uid}
	      Default location of the credentials cache

SEE ALSO

       kinit(1), kdestroy(1)

AUTHOR

       MIT

COPYRIGHT

       1985-2013, MIT

1.11.3																	   KVNO(1)