Although the test [ -z $line ] will work as long as no more than one word was typed in; it isn't doing what most people expect.
If an empty line is entered, it will expand to [ -z ] which will yield TRUE because "-z" is not an empty string (not because $line expands to an empty string).
If a single word is entered (and it does not contain any pattern matching characters that would match more than one file in the current directory), then it will expand to [ -z word ] which will evaluate to TRUE as expected.
If more than one word is entered or any pattern matching characters in a single word expand to a list of more than one filename, you will either get a syntax error or some random result depending on what the 1st word is and, if there are more than two words (after pattern matching), it will also depend on the subsequent words.
To use this form reliably, the line:
should be changed to:
Hello,
i have another sed question.. I'm trying to do variable substition with sed and i'm running into a problem.
my var1 is a string constructed like this:
filename1 filerev1 filepath1
my var2 is another string constructed like this:
filename2 filerev2 filepath2
when i do... (2 Replies)
I want to instert Category:XXXXX into the 2. line
something like this should work, but I have somewhere the wrong sytanx. something with the linebreak goes wrong:
sed "2i\\${n}Category:$cat\n"
Sample:
Titel Blahh Blahh abllk sdhsd sjdhf
Blahh Blah Blahh
Blahh
Should look like... (2 Replies)
Hi all,
I have a variable say var1 (output from somewhere, which I can't change)which store something like this:
echo $var1
name=fred
age=25
address="123 abc"
password=pass1234
how can I make the variable $name, $age, $address and $password contain the info?
I mean do this in a... (1 Reply)
Dear all,
I have basic knowledge of Unix script and her I am trying to process variable length and variable format CSV file.
The file length will depend on the numbers of Earnings/Deductions/Direct Deposits.
And
The format will depend on whether it is Earnings/Deductions or Direct Deposits... (2 Replies)
Hi,
I am trying to do the following thing
var='date'
$var
Above command substitutes date for and in turn runs the date command and i am getting the todays date value.
I am trying to do the same thing as following, but facing some problems,
unique_host_pro="sed -e ' /#/d'... (3 Replies)
can anyone please help me with this:
i have written a shell script and a stored procedure which has one OUT parameter. now i want to use that out parameter as an input to the unix script but i am getting an error as variable not found. below are the unix scripts and stored procedure...
... (4 Replies)
Hi all,
Hereby wish to have your advise for below:
Main concept is
I intend to get current directory of my script file.
This script file will be copied to /etc/init.d.
A string in this copy will be replaced with current directory value.
Below is original script file:
... (6 Replies)
Hi All,
I have a file which has hundred of records with fixed number of fields. In each record there is set of 8 characters which represent the duration of that activity. I want to sum up the duration present in all the records for a report. The problem is the duration changes per record so I... (5 Replies)
I have a below syntax its working fine...
var12=$(ps -ef | grep apache | awk '{print $2,$4}')
Im getting expected output as below:
printf "%b\n" "${VAR12}"
dell 123
dell 456
dell 457
Now I wrote a while loop.. the output of VAR12 should be passed as input parameters to while loop and results... (5 Replies)
Discussion started by: sam@sam
5 Replies
LEARN ABOUT HPUX
uuencode
uuencode(4) Kernel Interfaces Manual uuencode(4)NAME
uuencode - format of an encoded uuencode file
DESCRIPTION
Files output by consist of a header line followed by a number of body lines, and a trailer line. The command ignores any lines preceding
the header or following the trailer (see uuencode(1)). Lines preceding a header must not look like a header.
The header line consists of the word followed by a space, a mode (in octal), another space, and a string which specifies the name of the
remote file.
The body consists of a number of lines, each containing 62 or fewer characters (including trailing new-line). These lines consist of a
character count, followed by encoded characters, followed by a newline.
The character count is a single printing character, which represents an integer. This integer is the number of bytes in the rest of the
line, and always ranges from 0 to 63. The byte count can be determined by subtracting the equivalent octal value of an ASCII space charac-
ter (octal 40) from the character.
Groups of 3 bytes are stored in 4 characters, 6 bits per character. All are offset by a space to make the characters printable. The last
line may be shorter than the normal 45 bytes. If the size is not a multiple of 3, this fact can be determined by the value of the count on
the last line. Extra meaningless data will be included, if necessary, to make the character count a multiple of 4. The body is terminated
by a line with a count of zero. This line consists of one ASCII space.
The trailer line consists of the word on a line by itself.
SEE ALSO mail(1), uuencode(1), uucp(1).
uuencode(4)