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You need to source it:
. "$(dirname "$0")/testfile"

Try to remember to not put space characters around the equals sign in a Bourne Shell variable assignment.

Not the first time ......

Does you system have acl's ie.,
in ls -l output do you see

drwxrwxrwx+

some character after the perms?

What OS and shell are you using?

directory=`dirname /path1/path2/path3/file.txt`
Change this line .. no spaces... Scripting does not like spaces
Likes to be close .. while with variable. :)

you can use substr function

printf "%s\n", substr $testline,0,50;

print substr($testline, 0, 50), "\n"

You could use a function like that below (UNTESTED CODE)

sub limit{
my ($string, $limit)=shift;
return length($string)>$limit ? substr($string, 0, $limit) : $string;
}
...
printf...

sed 'q' bigfile | grep "string"
Nice post. Been looking for that one for a long time.

Any way of reading just the first line of a big file quickly is really useful. This has to be the shortest...

Could be shorten:

sed 'q' bigfile | grep "string"

sed '/string/!d;q' bigfile

awk '/pattern/ {print;exit}' input.txt

"doesn't work" is not exactly descriptive. You get an error message, blank output, or what?

head -1 filename | grep "string"

However, this is faster for large files:
sed -n '1,1p;1q' bigfile | grep "string"

It prints out any lines containing the character '/' -- nothing more, nothing less. It doesn't understand ls's output.

Yes.

To get the value in kilobytes.
du -k

Some versions have a "-h" (human-readable) format option.

The backslash escapes the slash and the $ stands for end of line in regular expressions.

You could save a command/pipe by just passing the filename into awk for use as a pattern.
size=$(ls -RFs $dval | awk -vval=$name '$0 ~ val { print $1 }')

i dont think, this command will give the correct size.

I Guess, it is giving the number of blocks. ( not the size )


size=$(ls -RFsh Documents | grep \/$ | grep Music | awk '{ print $1}')

You need to strip off the units and convert to a common unit before you try and add it to a total (you could have 3.6M, 4.0K, etc).

You don't need the find utility to use a folder which you already know of. All find is doing is printing out the relative path for you.

Just give du a full path or a relative path to where you...