This example uses standard commands to address the sequence part of the problem. It finds the extrema of the input sequence, uses a command to generate the full sequence, then compares the sequences:
Producing:
The command jot can be used in place of seq ... cheers, drl
I need to edit a list of numbers on the following form:
1 1.0
2 1.4
5 2.1
7 1.9
I want:
1 1.0
2 1.4
3 0.0
4 0.0
5 2.1
6 0.0
7 1.9
(i want to add the missing number in column 1 together with 0.0 in column 2).
I guess it is rather trivial but i didn't even manage to read column... (5 Replies)
Howdy experts,
We have some ranges of number which belongs to particual group as below.
GroupNo StartRange EndRange
Group0125 935300 935399
Group2006 935400 935476
937430 937459
Group0324 935477 935549
... (6 Replies)
Hi Experts,
Need help on printing of numbers, which are missing in the range.
Pls find the details below
Input
1000000002
1000000007
1234007940
1234007946
Output
1000000003
1000000004
1000000005
1000000006
1234007941 (2 Replies)
Hi All,
I have 100 files with names like this:
1.dat, 2.dat, 3.dat until 100.dat.
My dat files look like this:
42323 0
438939 1
434 0
0.9383
3434
120.23 3
234
As you can see in the second column, some numbers are missing. I want to fill those missing places with 0's in all... (3 Replies)
Hi,
my data is like the subsequent snipped. Fieldseperator is TAB.
I can work the data well with awk, but the missing zero-numbers at the days column, for the days smaller 10 and the full hour-minutes i cant handle in the output.
2012 7 1 8 40 249.463 245.01 5.70448 6.11388 6.22125... (2 Replies)
Hi all,
I have two (2) sets of files that are based on some snapshots of database that I want to merge and insert any missing sequential number.
Below are example representation of these files:
file1:
DATE TIME COL1 COL2 COL3 COL4 ID
01/10/2013 0800 100 ... (3 Replies)
:oi was trying to write a script to format output of a command in ksh which has output as below:
so i used :
to get
which i require at all times. But problem occurs when status part changes. above output i get when status is SU (success).If the status is IN (inactive), output of... (1 Reply)
I have awk command :
awk -F ' ' '{ print $NF }' log filename
And it gives the output as below:
06:00:00
parameters:
SDS
(2)
no
no
no
no
doc=4000000000).
information: (6 Replies)
Hello to all,
I have show below a file separated by commas. In first column has numbers where the last number is 13.
1,4
2,6
3,7
5,2
6,5
7,5
8,65
9,10
11,78
13,2
What I want to know is which numbers are missing from 1 to 13 (in this case 13 is last number in column 1). My real... (17 Replies)
Discussion started by: Ophiuchus
17 Replies
LEARN ABOUT ULTRIX
exec
exec(1) User Commands exec(1)NAME
exec, eval, source - shell built-in functions to execute other commands
SYNOPSIS
sh
exec [argument...]
eval [argument...]
csh
exec command
eval argument...
source [-h] name
ksh
*exec [arg...]
*eval [arg...]
DESCRIPTION
sh
The exec command specified by the arguments is executed in place of this shell without creating a new process. Input/output arguments may
appear and, if no other arguments are given, cause the shell input/output to be modified.
The arguments to the eval built-in are read as input to the shell and the resulting command(s) executed.
csh
exec executes command in place of the current shell, which terminates.
eval reads its arguments as input to the shell and executes the resulting command(s). This is usually used to execute commands generated as
the result of command or variable substitution.
source reads commands from name. source commands may be nested, but if they are nested too deeply the shell may run out of file descrip-
tors. An error in a sourced file at any level terminates all nested source commands.
-h Place commands from the file name on the history list without executing them.
ksh
With the exec built-in, if arg is given, the command specified by the arguments is executed in place of this shell without creating a new
process. Input/output arguments may appear and affect the current process. If no arguments are given the effect of this command is to mod-
ify file descriptors as prescribed by the input/output redirection list. In this case, any file descriptor numbers greater than 2 that are
opened with this mechanism are closed when invoking another program.
The arguments to eval are read as input to the shell and the resulting command(s) executed.
On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways:
1. Variable assignment lists preceding the command remain in effect when the command completes.
2. I/O redirections are processed after variable assignments.
3. Errors cause a script that contains them to abort.
4. Words, following a command preceded by ** that are in the format of a variable assignment, are expanded with the same rules as a vari-
able assignment. This means that tilde substitution is performed after the = sign and word splitting and file name generation are not
performed.
EXIT STATUS
For ksh:
If command is not found, the exit status is 127. If command is found, but is not an executable utility, the exit status is 126. If a redi-
rection error occurs, the shell exits with a value in the range 1-125. Otherwise, exec returns a zero exit status.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO csh(1), ksh(1), sh(1), attributes(5)SunOS 5.10 17 Jul 2002 exec(1)