09-20-2001
The problem is that you print the information twice; once in your awk statement; once in your echo statement. One solution is to echo only the word DATA and then execute the ping-awk filter in the same statement (and delete the echo afterwards). There are many other solutions.
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for i in $var; do
for j in $var; do
if
then
ssh -x -a "$host_login_name"@${i} ping -c 3 -s 3 ${j}
if
then
printf "Success\n"
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printf "Failed\n"
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LEARN ABOUT CENTOS
execute
EXECUTE(7) PostgreSQL 9.2.7 Documentation EXECUTE(7)
NAME
EXECUTE - execute a prepared statement
SYNOPSIS
EXECUTE name [ ( parameter [, ...] ) ]
DESCRIPTION
EXECUTE is used to execute a previously prepared statement. Since prepared statements only exist for the duration of a session, the
prepared statement must have been created by a PREPARE statement executed earlier in the current session.
If the PREPARE statement that created the statement specified some parameters, a compatible set of parameters must be passed to the EXECUTE
statement, or else an error is raised. Note that (unlike functions) prepared statements are not overloaded based on the type or number of
their parameters; the name of a prepared statement must be unique within a database session.
For more information on the creation and usage of prepared statements, see PREPARE(7).
PARAMETERS
name
The name of the prepared statement to execute.
parameter
The actual value of a parameter to the prepared statement. This must be an expression yielding a value that is compatible with the data
type of this parameter, as was determined when the prepared statement was created.
OUTPUTS
The command tag returned by EXECUTE is that of the prepared statement, and not EXECUTE.
EXAMPLES
Examples are given in the EXAMPLES section of the PREPARE(7) documentation.
COMPATIBILITY
The SQL standard includes an EXECUTE statement, but it is only for use in embedded SQL. This version of the EXECUTE statement also uses a
somewhat different syntax.
SEE ALSO
DEALLOCATE(7), PREPARE(7)
PostgreSQL 9.2.7 2014-02-17 EXECUTE(7)