One way to do it would be to run the tail/awk pipe in a background subshell, redirect that output to a temp file, and have the parent script terminate the subshell when the file is 3 lines long.
Some rough (and untested!) code:
These 2 Users Gave Thanks to CarloM For This Post:
Hi all,
I've a structure let's say
typdef struct a { int a; int b; char* string} b;
I need to make the function smth like readdir(), returning everytime it's called pointer to the next structure. Let's say functions would read the next file in the directory and all the permitions put it in... (2 Replies)
Hello
I wander if im doing :
ls -l and its giving me lets say 3 results :
-rw-r--r-- 1 blah other 1789 May 19 2003 foo.c
-rw-r--r-- 1 blah other 1014 May 19 2003 foo.h
-rw-r--r-- 1 blah other 270 May 19 2003 foo1.c
now I would like to use the first... (1 Reply)
Hello,
i am trying to write a script file in awk which yields me the number of lines,characters and words, i checked it many many times but i am not able to find any mistake in it. Please tell me where i went wrong.
BEGIN{
print "Filename Lines Words Chars\n"
}
{
filename=filename + 1... (2 Replies)
Please help in the following problem:
Input is:
Pritam
123
456
Patil
myname
youname
Pritam
myproject
thisproject
iclic
Patil
remaining text
some more text
I need the command which will display the no of lines between two words in the whole file.
e.g. Display all the no of lines... (5 Replies)
hello,
i 'd like your help about a bash script which:
1. finds inside the html file (it is attached with my post) the code number of the Latest Stable Kernel,
2.finds the link which leads to the download location of the Latest Stable Kernel version,
(the right link should lead to the file... (3 Replies)
Hi everybody,
i have this biological situation to fix:
> Id.1
ACGTACANNNNNNNNNNNACGTGCNNNNNNNACTGTGGT
>Id.2
ACGGGT
>Id.3
ACGTNNNNNNNNNNNNACTGGGGG
>Id.4
ACGTGCGNNNNNNNNGGTCANNNNNNNNCGTGCAAANNNNN
........
....
These are nucleotidic sequences with some "NNNN..." always of the same... (4 Replies)
Hi,
I have a requirement to to an ldapsearch and remove the shadow attributes in the output file.
What I do is ldapsearch() | operation to remove shadow > FILE
The ldapsearch gives output like this(with same line formation):
objectClass: FSConfig
objectClass: extensibleObject
fsCAIP:... (10 Replies)
Hey everyone!
I have a tab delimited data set which I want to create an output contained the calculation of number of those lines with a certain value in 2nd and 3rd column.
my input file is like this:
ID1 1 10M AAATTTCCGG
ID2 5 4M ACGT
ID3 5 8M ACCTTGGA
ID4 5 ... (7 Replies)
Hi ,
I need to count the number of errors associated with the two words occurring in the file. It's about counting the occurrences of the word "error" for where is the word "index.js". As such the command should look like. Please kindly help. I was trying: grep "error" log.txt | wc -l (1 Reply)
Is there an efficient awk that can count the number of lines that occur in between two tags.
For instance, consider the following text:
<s>
Hi PP -
my VBD -
name DT -
is NN -
. SENT .
</s>
<s>
Her PP -
name VBD -
is DT -
the NN -
same WRT -
. SENT -
</s>
I am interested to know... (4 Replies)
Discussion started by: owwow14
4 Replies
LEARN ABOUT SUSE
tempfile
TEMPFILE(1) General Commands Manual TEMPFILE(1)NAME
tempfile - create a temporary file in a safe manner
SYNOPSIS
tempfile [-d DIR] [-p STRING] [-s STRING] [-m MODE] [-n FILE] [--directory=DIR] [--prefix=STRING] [--suffix=STRING] [--mode=MODE]
[--name=FILE] [--help] [--version]
DESCRIPTION
tempfile creates a temporary file in a safe manner. It uses tempnam(3) to choose the name and opens it with O_RDWR | O_CREAT | O_EXCL.
The filename is printed on standard output. See tempnam(3) for the actual steps involved in directory selection.
The directory in which to create the file might be searched for in this order (but refer to tempnam(3) for authoritative answers):
a) In case the environment variable TMPDIR exists and contains the name of an appropriate directory, that is used.
b) Otherwise, if the --directory argument is specified and appropriate, it is used.
c) Otherwise, P_tmpdir (as defined in <stdio.h>) is used when appropriate.
d) Finally an implementation-defined directory (/tmp) may be used.
OPTIONS -d, --directory DIR
Place the file in DIR.
-m, --mode MODE
Open the file with MODE instead of 0600.
-n, --name FILE
Use FILE for the name instead of tempnam(3). The options -d, -p, and -s are ignored if this option is given.
-p, --prefix STRING
Use up to five letters of STRING to generate the name.
-s, --suffix STRING
Generate the file with STRING as the suffix.
--help Print a usage message on standard output and exit successfully.
--version
Print version information on standard output and exit successfully.
RETURN VALUES
An exit status of 0 means the temporary file was created successfully. Any other exit status indicates an error.
BUGS
Exclusive creation is not guaranteed when creating files on NFS partitions. tempfile cannot make temporary directories. tempfile is dep-
recated; you should use mktemp(1) instead.
EXAMPLE
#!/bin/sh
#[...]
t=$(tempfile) || exit
trap "rm -f -- '$t'" EXIT
#[...]
rm -f -- "$t"
trap - EXIT
exit
SEE ALSO tempnam(3), mktemp(1)Debian 27 Jun 2012 TEMPFILE(1)