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Can please someone help me
First is this correct: while [ $string != "" ] how we symbolise space? I mean is "" correct?
and this var=`cut -f1 -d\"" $string` how we symbolise the space or blank character here? Is this -d\"" or -d " " correct. Because all them are wrong
If there is no space between the quotation marks then it's the empty string, with no characters in it.
To symbolize a space, put a space between the quotation marks.
You can play with "echo" and "cat -A" to see what happens. (Your cat might use a slightly different option character.)
The $ shows the end of line, so you can tell whether or not there was any whitespace. Or just put something around it:
\" means a literal double quote, so -d \"" is a syntax error (literal double quote followed by opening string quote, but no closing string quote). -d " " with a space between should work; doesn't it work for you? Backslash followed by space (-d \ )should also work, without any quote marks at all.
So how we symbolise the end of line in:
while [ $seira != "" ] . seira is a string that has blank spaces between the characters. I want to read it with while until end of line. how we symbolise it? Is the above correct
What do you mean by "read it with while"? You need to show more of your code.
The above says "while $seira is not an empty string" so that seems vaguely like what you're after. (You should have double quotes around $seira though.)
I have a file that has dates like this:
date FINAL_RESULT; 6
date FINAL_RESULT; 3
date FINAL_RESULT; 8
With this command: seira=`cut -f2 -d\; tes.txt` i take the date FINAL RESULTs and i store them on variable seira.then seira look like this: 6 3 8
I want to read seira and make a sum of all results 6+3+8 etc. i don't know how mane records there are in the file. So i want to read seira with the the next loop using while but it doesn 't work. i don't want to use grep or awk. I want to use while and cut but it is wrong. Can yoy help me please
while [ "$seira" != "" -a "$seira" != " " ]
do
sum=0
pros1=`cut -f1 -d \ $seira`
pros2=`cut -f2 -d \" " $seira`
sum=`expr $sum+$pros1`
seira=$pros2
done
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HOST IP DATE/TIME - - "GET/POST reuest" "User Agent"
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posting here after scanning the net and tried most of the things offered
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when I do :
$ df -h
Filesystem Size Used Avail Use% Mounted on
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May I know the difference between space in keyboard and ] in regular expression
I entered the following
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After "^" there is a space.
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