hi,
I am a begginer in unix and i want to know how to open a file and read it and separate the numbers & words and storing it in separate files, Using shell scripting.
Please help me out for this.
Regards
S.Kamakshi (2 Replies)
Hi All,
I want to read one number from the file.
Only one number will be there in the file.
then i have to increment the number in my script and put it back in the same file.
Is it possible?
Can anybody help me?
Thanks,
Vinay (6 Replies)
Hi Guys,
I am new to unix.
Actually i want help in writing an single command where
i can actually read specific line number in file where the line number will be passed to command as parameter.
ex.
1 a
2 b
3 c
4 d
And to my command i pass as 2.
so i should get output as 2 b
... (15 Replies)
I have a file with a list of config files numbered on the lefthand side 1-300. I need to have bash read each lines number and assign it to a variable so it can be chosen by the user called by the script later.
Ex. 1 some data
2 something else
3 more stuff
which number do you... (1 Reply)
Hello, I'm trying to create a BASH file that can read all the files in my working directory and tell me how many words and lines are in that file. I wrote the following code:
FILES="*"
for f in "$FILES"
do
echo -e `wc -l -w $f`
done
My issue is that my file is outputting in one... (4 Replies)
Hello Everyone.
I am trying to display contains of a file from a specific line to a specific line(let say, from line number 3 to line number 5). For this I got the shell script as shown below:
if ; then
if ; then
tail +$1 $3 | head -n $2
else
... (5 Replies)
Hello All,
i am a newbie and need some help when reading a csv file in a bourne shell script. I want to read 10 lines, then wait for a minute and then do a reading of another 10 lines and so on in the same way. I want to do this till the end of file.
Any inputs are appreciated
... (3 Replies)
Hi all,
I have a file sample.txt
abc
asd
adf
daf
adw
add
adv
wdf
I want to control the number of lines to read
Like if i give input as ./script_name 2 5
required output
asd
adf
daf (2 Replies)
hello guys,
I'm struggled to get a number from a very long text file.
NAtoms= 33 NActive= 30 NUniq= 23 SFac= 1.00D+00 NAtFMM= 60 NAOKFM=F Big=F
Integral buffers will be 131072 words long.
Raffenetti 2 integral format.
The number 33 is what I wanted, always follows NAtoms=... (5 Replies)
I am new to ksh scripts. I would like to be able to read a file line by line from a certain line number. I have a specific line number saved in a variable, say $lineNumber. How can I start reading the file from the line number saved in $lineNumber? Thanks! (4 Replies)
Discussion started by: dcowboys13
4 Replies
LEARN ABOUT HPUX
ftrylockfile
flockfile(3S)flockfile(3S)NAME
flockfile(), ftrylockfile(), funlockfile() - explicit locking of streams within a multithread application
SYNOPSIS DESCRIPTION
The and functions provide for explicit application-level locking of streams. These functions can be used by a thread to delineate a
sequence of I/O statements that are to be executed as a unit.
The function is used by a thread to acquire ownership of a object.
The function is used by a thread to acquire ownership of a object if the object is available; is a non-blocking version of
The function is used to relinquish the ownership granted to the thread. The behavior is undefined if a thread other than the current owner
calls the function.
Logically, there is a count associated with each stream. This count is implicitly initialized to zero when the stream is created. The
stream is unlocked when the count is zero. When the count is positive, a single thread owns the stream. When the function is called, if
the count is zero or if the count is positive and the caller owns the stream, the count is incremented. Otherwise, the calling thread is
suspended, waiting for the count to return to zero. Each call to decrements the count. This allows matching calls to (or successful calls
to and to be nested.
All POSIX.1 and C standard functions that reference objects behave as if they use and internally to obtain ownership of these objects.
RETURN VALUE
None for and The function returns zero for success and nonzero to indicate that the lock cannot be acquired.
flockfile(3S)