As per admax request kindly see below why I did use [[ ]] in bash loops
Code:
[[ ]]
test.
Test expression between [[ ]]. This is a shell keyword
The [[ ]] construct is the more versatile Bash version of [ ]. This is the extended test command, adopted from
ksh88.
No filename expansion or word splitting takes place between [[ and ]], but there is parameter expansion
and command substitution.
file=/etc/passwd
if [[ -e $file ]]
then
echo "Password file exists."
fi
Using the [[ ... ]] test construct, rather than [ ... ] can prevent many logic errors in scripts. For example,
the &&, ||, <, and > operators work within a [[ ]] test, despite giving an error within a [ ] construct.
Hi
I am doing a script like
if
then
echo "table name dosent exist"
exit
fi
the problem is if $table_name is null then i am getting the error
Please help me
Thanks in advance (2 Replies)
hi
i am trying to compare a value with value 50. but i am getting
"
I am using
if
then
echo "------------"
fi
please help
thanks in advance
Satya (2 Replies)
Im trying to fix my /etc/weekly that rotates various logs however it does them no matter what filesize they are and i want them to only do it if there file size exceeds 2M or something. So I'm playing with a script to get the filesize using a ls -l command which works and puts the value into a... (3 Replies)
I get the following error
./get_NE05: line 42:
while
do
echo ${STRING_NAME}
J=1
if ; then
EXT=0$I
else
EXT=$I
fi
while
do
echo $I-$J
#calculating last occurrence
OCCURRENCE=`grep -io "${STRING_NAME}"... (3 Replies)
Why am I getting this error.... #!/bin/sh
# iOS-Ad-Remover
# Marshall Ford @ marshallbford@gmail.com
# This project is hosted @ http://ios-ad-
# remover.sourceforge.net
# Under the GNU GPL open source license
clear
echo
if ; then echo "You need to be root to run this script."; exit 0; #... (24 Replies)
i=0
while
Shell script reports an error "unary operator expected" pointing the above line.
$i by default is 0 and holds integer value and $buf is also holding integer value.
Please can some one let me know what is missing.
Thanks. (1 Reply)
Hiya all,
Why do I get a :unary operator expected when I try to put a condition statement in my shell script (sh) like so and how to fix?
if ; then
echo "say hello"
else
echo "don't say hello"
fi
? It seems if the script receives an argument it works but if I don't put an... (4 Replies)
Hi
I have problem with my script.
I dont now why but i don't change anything and script stop working.
this is my code:
#!/bin/sh
for i in `ps -A | grep pocron.sh | grep -v grep | awk '{print $2}'`
do
COUNT=$((COUNT+1))
done
ostatnie_wykonanie=`cat porader.log`... (1 Reply)
In all my Googling, this usually happens when someone is comparing a variable, and that variable is unset. That doesn't appear to be the case for me...
#!/bin/bash -x
while read line
do
f=$(echo $line | tr -s ' ' | cut -d' ' -f 3)
echo $f
if
then
echo "This... (2 Replies)
Discussion started by: jnojr
2 Replies
LEARN ABOUT DEBIAN
prophet::test
Prophet::Test(3pm) User Contributed Perl Documentation Prophet::Test(3pm)
set_editor($code)
Sets the subroutine that Prophet should use instead of "Prophet::CLI::Command::edit_text" (as this routine invokes an interactive editor)
to $code.
set_editor_script SCRIPT
Sets the editor that Proc::InvokeEditor uses.
This should be a non-interactive script found in t/scripts.
import_extra($class, $args)
in_gladiator($code)
Run the given code using Devel::Gladiator.
repo_path_for($username)
Returns a path on disk for where $username's replica is stored.
repo_uri_for($username)
Returns a file:// URI for $USERNAME'S replica (with the correct replica type prefix).
replica_uuid
Returns the UUID of the test replica.
database_uuid
Returns the UUID of the test database.
replica_last_rev
Returns the sequence number of the last change in the test replica.
as_user($username, $coderef)
Run this code block as $username. This routine sets up the %ENV hash so that when we go looking for a repository, we get the user's repo.
replica_uuid_for($username)
Returns the UUID of the given user's test replica.
database_uuid_for($username)
Returns the UUID of the given user's test database.
ok_added_revisions( { CODE }, $numbers_of_new_revisions, $msg)
Checks that the given code block adds the given number of changes to the test replica. $msg is optional and will be printed with the test
if given.
serialize_conflict($conflict_obj)
Returns a simple, serialized version of a Prophet::Conflict object suitable for comparison in tests.
The serialized version is a hash reference containing the following keys:
meta => { original_source_uuid => 'source_replica_uuid' }
records => { 'record_uuid' =>
{ change_type => 'type',
props => { propchange_name => { source_old => 'old_val',
source_new => 'new_val',
target_old => 'target_val',
}
}
},
'another_record_uuid' =>
{ change_type => 'type',
props => { propchange_name => { source_old => 'old_val',
source_new => 'new_val',
target_old => 'target_val',
}
}
},
}
serialize_changeset($changeset_obj)
Returns a simple, serialized version of a Prophet::ChangeSet object suitable for comparison in tests (a hash).
run_command($command, @args)
Run the given command with (optionally) the given args using a new Prophet::CLI object. Returns the standard output of that command in
scalar form or, in array context, the STDOUT in scalar form *and* the STDERR in scalar form.
Examples:
run_command('create', '--type=Foo');
load_record($type, $uuid)
Loads and returns a record object for the record with the given type and uuid.
as_alice CODE, as_bob CODE, as_charlie CODE, as_david CODE
Runs CODE as alice, bob, charlie or david.
perl v5.10.1 2009-09-02 Prophet::Test(3pm)