I have myMethod that gives me available,used,free disk space in KB. I parse the used disk space using awk. That gives me something like 830,016. I want the output to be 830016 so that I can add 100000 to it. In other words I would like to use used_space variable in numeric calculations (using expr).
But the last line above gives me error:
What can I do? If I do the same thing on command line it works fine!
Hello,
I have a korn shell string variable
str1 = "A,B,Z"
I would like to create another korn shell string variable
str2 = "letter = 'A' or letter = 'B' or letter = 'Z' "
Please help!
Thanks in advance
an UNIX newbie! (13 Replies)
Hi There!
I have the following block of text in my input file
and in order to parse it correctly, i need to have
i.e. If a line starts with a number, ignore it else replace it with the number from the previous line until the first ','
So, for example,
15,9:5/12345
,10:1
... (5 Replies)
Hey Guys,
Right i know how to alter a word to begin with a capital letter, i know how to remove unwanted characters and replace them with the relevant character however i don't now if there is a way to do them all in one line.
Code:
echo -n ${string:0:1} | tr a-z A-Z #convert first letter... (4 Replies)
Hi,
I have a file with rows of text like so :
E100005568374098100000015667
D100005568374032000000112682
H100005228374060800000002430
I need to grab just the last digits(bolded) of each line without the proceeding text/numbers.
Thanks (5 Replies)
Hi,
i am just gettin exposed to UNIX.
Could anyone of u help me out with dis problem..?
i have a variable 'act' which has the value as follows,
echo $act gives -0- -0- -----0---- 2008-06-04 -0- -0-
echo "$act" | awk '{print ($act)}'
gives,
-0-
-0-
-----0----
2008-06-04
-0-
-0-
I... (2 Replies)
I am doing some training for a job I have just got and there is an exercise I am stuck with. I am not posting to ask a question about logic, just a trivial help with string manipulation. I would appreciate if somebody could at least give me a hint on how to do it.
Basically, the intelligent part... (8 Replies)
Write a shell program to display the position of the right - most character in a given input string.
Example :
Input : RAHUL
Output : L is in the 5th position
also tell me how to count length of string and how to find the position of specific character in left most side. (1 Reply)
Dear All,
I have a question.
I have files with the following pattern.>S8_SK1.chr01
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNCAGCATGCAATAAGGTGACATAGATATACCCACACACCACACCCTAACACTAACCCTAATCTAACCCTGGCCAACCTGTTT... (13 Replies)
hi all,
i am new to shell scripting and need help.
i have a string that stores the month in Jan/Feb/Mar format. i need to convert it to number like 01 for jan, 12 for dec etc.
i am using the following sed command,
echo "Enter a Month eg. Jan/Feb : "
read MONTHEND
... (9 Replies)
i have something like this...
echo "teCertificateId" | awk -F'Id' '{ print $1 }' | awk -F'te' '{ print $2 }'
Certifica
the awk should remove 'te' only if it is present at the start of the string.. anywhere else it should ignore it.
expected output is
Certificate (7 Replies)
Discussion started by: vivek d r
7 Replies
LEARN ABOUT FREEBSD
ddb
DDB(8) BSD System Manager's Manual DDB(8)NAME
ddb -- configure DDB kernel debugger properties
SYNOPSIS
ddb capture [-M -core] [-N -system] print
ddb capture [-M -core] [-N -system] status
ddb script scriptname
ddb script scriptname=script
ddb scripts
ddb unscript scriptname
ddb pathname
DESCRIPTION
The ddb utility configures certain aspects of the ddb(4) kernel debugger from user space that are not configured at compile-time or easily
via sysctl(8) MIB entries.
To ease configuration, commands can be put in a file which is processed using ddb as shown in the last synopsis line. An absolute pathname
must be used. The file will be read line by line and applied as arguments to the ddb utility. Whitespace at the beginning of lines will be
ignored as will lines where the first non-whitespace character is '#'.
OUTPUT CAPTURE
The ddb utility can be used to extract the contents of the ddb(4) output capture buffer of the current live kernel, or from the crash dump of
a kernel on disk. The following debugger commands are available from the command line:
capture [-M core] [-N system] print
Print the current contents of the ddb(4) output capture buffer.
capture [-M core] [-N system] status
Print the current status of the ddb(4) output capture buffer.
SCRIPTING
The ddb utility can be used to configure aspects of ddb(4) scripting from user space; scripting support is described in more detail in
ddb(4). Each of the debugger commands is available from the command line:
script scriptname
Print the script named scriptname.
script scriptname=script
Define a script named scriptname. As many scripts contain characters interpreted in special ways by the shell, it is advisable to
enclose script in quotes.
scripts
List currently defined scripts.
unscript scriptname
Delete the script named scriptname.
EXIT STATUS
The ddb utility exits 0 on success, and >0 if an error occurs.
EXAMPLES
The following example defines a script that will execute when the kernel debugger is entered as a result of a break signal:
ddb script kdb.enter.break="show pcpu; bt"
The following example will delete the script:
ddb unscript kdb.enter.break
For further examples, see the ddb(4) and textdump(4) manual pages.
SEE ALSO ddb(4), textdump(4), sysctl(8)HISTORY
The ddb utility first appeared in FreeBSD 7.1.
AUTHORS
Robert N M Watson
BUGS
Ideally, ddb would not exist, as all pertinent aspects of ddb(4) could be configured directly via sysctl(8).
BSD December 24, 2008 BSD