Your question doesn't make any sense.
If statements don't read data from pipes.
You have shown us four echo statements (each of which prints at least three consecutive spaces piped into if statements with comments saying two of them don't contain three spaces???
Then you have shown us a conditional expression that performs two pathname expansions and performs logical and and not operations on those expansions in ways that might or might not be syntax errors depending on what files exist in the current directory.
If you want to write a function, the first thing you need to do is clearly explain what input that function is going to receive and what output it is supposed to produce.
This User Gave Thanks to Don Cragun For This Post:
Hmm. Do you mean something like:
This purposely does not directly answer your question, but shows what I think you mean.
By ignore - does that mean spaces at the end do not matter or you skip the comparison?
Thanks.
This User Gave Thanks to jim mcnamara For This Post:
The updated spec is still ambiguous. The phrase: "ignoring three spaces at the end of the string" can be interpreted several ways. Any of them can be handled using standard variable expansions or conditional expressions in bash or any other shell that handles basic POSIX-mandated variable expansions.
Does it mean that the test fails if there aren't at least three spaces at the end of the string? And, then the test passes only if three spaces appear anywhere in the remainder of the string? If so, try:
Does it mean that the test passes if three spaces appear anywhere in the string other than the last three characters in the string? Try:
Does it mean that the test passes if there are three spaces followed by a non-space character anywhere in the string? If so, try:
Does it mean that the test passes if there are three spaces followed by any character (including another space) anywhere in the string, but if the string ends with three spaces none of those three spaces can be used in the match? If so, try:
Obviously, any of the above can be changed from using single square brackets:
to:
This User Gave Thanks to Don Cragun For This Post:
Hi all,
I have written the following program and run on both T5440 and T5220 on same OS version. I found that T5540 server takes more time than T5220. Please find below the details.
test1.cpp
#include <iostream>
#include <pthread.h>
using namespace std;
#define NUM_OF_THREADS 20... (17 Replies)
Hi,
I am trying to remove lines once a string is found till another string is found including the start string and end string. I want to basically grab all the lines starting with color (closing bracket). PS: The line after the closing bracket for color could be anything (currently 'more').... (1 Reply)
Hi there, im sure this is really simple but i have some strings like this
e1000g123001
e1000g0
nge11101
nge3and i want to create two variables ($DRIVER and $INSTANCE). the first one containing the alpha characters that make up the first part of the string, e.g. e1000g or nge and the... (9 Replies)
Hi there, I have a bunch of interface names like
e1000g0
nge1
dmfe3
I also have some that have longer (vlan tagged) names
like
e1000g123001
nge23003
e1000g999002
I need to determine whether the interface is one of the former or latter types and I would do that by seeing... (7 Replies)
This is the code:
while test 1 -eq 1
do
read a
$a
if test $a = stop
then
break
fi
done
I read a command on every loop an execute it.
I check if the string equals the word stop to end the loop,but it say that I gave too many arguments to test.
For example echo hello.
Now the... (1 Reply)
Hi there,
I tried to search for this almost everywhere, but didnt get any proper information on it.
What is the difference between
]
Some of the code works when I have only single condition i.e.
] && $dothis1 || $dothis2
But if i try to include another testcondition to the... (1 Reply)
Hello,
what is the better and correct way to perform a comparison:
I have been using the following with no problems:
if ]
then ....
fi
I have seen this also used :
if
then ....
fi
When I try :
if
then ....
fi
I get an error like .... the test condition expects a... (4 Replies)
Hi there,
When I try to do a condition on test:
$ str1=abcd
$ test $str1
$ echo $?
0
Is there anyway to display the answer to be 'TRUE' or 'YES'? rather than 0?
If so, how can I do it without using awk or sed. (2 Replies)
Guys look at this:
i have to write a script that takes a file as an argument. The script should be able to determine what permissions the owner, group and everybody has for the file passed in. The output should be displayed similar to this.
READ WRITE EXECUTE
OWNER LEE.BALLANCORE YES YES NO... (9 Replies)