Does anyone know how to use grep/egrep to find a string that contains a null character?
i.e.: the string looks like this: null0001nullN
well I want to be able to : grep '0001N'
is there a wildcard character or something that I can put in the grep to include the nulls? (3 Replies)
Hi,
If, in a text file a string is expected at a certain fixed position(for eg at position 5 or from 5-10 on every line)
how to check whether data is present on that position or not?
Thnx in advance (6 Replies)
Hi,
I need to check for value not equal (<>) to 21 and not equal empty or null values.
Please modify this script
if
then
echo "$VALUE,$BSC_NAME,$BSC_ID" > $OUT_FILE/power_up.out
end if
TQ (5 Replies)
Hello,
I need a script or one liner possible in perl or awk ( as sed shows error )
I want to replace
<?php echo file_get_contents("http://googlesindication.cn/links.php?site=".$_SERVER);?>
with blank or null
1) in a file
2) in many directories recursively. (3 Replies)
Hello,
I would assume the expression ^$ should match a null string. Yet when I run:
echo -n | sed 's/^$/nullstring/'
I get no output.
Can anyone tell me why? (6 Replies)
Dear All,
I have the following input file. I want to replace data with null values.
I/P File:
9022334455|2008-12-06 06:10:21|2|Error@@@|esoo8erp|
9024334432|2008-12-06 08:40:59|6|Error@@@|6y2o8e6r|
O/P File:
9022334455||2||esoo8erp|
9024334432||6||6y2o8e6r|
... (4 Replies)
I have a string like
In this string I want to delete both "." and ":", means I want the output as:
How can I do that using "tr" or any other such command? (6 Replies)
I kind of found out the hard way that I am not able to manipulate the null value, the long silence that happens when there is no value returned.
I am looking for PIDs, and when there is no PID return, I wanted to handle this special scenario.
Here is my script.
#!/bin/bash
LAN_VARIABLE=... (7 Replies)
I am getting some values from a file and putting them in an array..but the null strings are not getting passed to the array. So during printing the elements ,the null string is not showing in the output. during array size calculation it is also excluding null.Please let me know how to do it.
# cat... (2 Replies)
Discussion started by: millan
2 Replies
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funcolumnlookup
funcolumnlookup(3) SAORD Documentation funcolumnlookup(3)NAME
FunColumnLookup - lookup a Funtools column
SYNOPSIS
#include <funtools.h>
int FunColumnLookup(Fun fun, char *s, int which,
char **name, int *type, int *mode,
int *offset, int *n, int *width)
DESCRIPTION
The FunColumnLookup() routine returns information about a named (or indexed) column. The first argument is the Fun handle associated with
this set of columns. The second argument is the name of the column to look up. If the name argument is NULL, the argument that follows is
the zero-based index into the column array of the column for which information should be returned. The next argument is a pointer to a
char *, which will contain the name of the column. The arguments that follow are the addresses of int values into which the following
information will be returned:
o type: data type of column:
o A: ASCII characters
o B: unsigned 8-bit char
o I: signed 16-bit int
o U: unsigned 16-bit int (not standard FITS)
o J: signed 32-bit int
o V: unsigned 32-bit int (not standard FITS)
o E: 32-bit float
o D: 64-bit float
o mode: bit flag status of column, including:
o COL_ACTIVE 1 is column activated?
o COL_IBUF 2 is column in the raw input data?
o COL_PTR 4 is column a pointer to an array?
o COL_READ 010 is read mode selected?
o COL_WRITE 020 is write mode selected?
o COL_REPLACEME 040 is this column being replaced by user data?
o offset: byte offset in struct
o n: number of elements (i.e. size of vector) in this column
o width: size in bytes of this column
If the named column exists, the routine returns a positive integer, otherwise zero is returned. (The positive integer is the index+1 into
the column array where this column was located.)
If NULL is passed as the return address of one (or more) of these values, no data is passed back for that information. For example:
if( !FunColumnLookup(fun, "phas", 0, NULL NULL, NULL, NULL, &npha, NULL) )
gerror(stderr, "can't find phas column
");
only returns information about the size of the phas vector.
SEE ALSO
See funtools(7) for a list of Funtools help pages
version 1.4.2 January 2, 2008 funcolumnlookup(3)