10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Trying to do some control flow parsing based on the index postion of an array member. Here is the pseudo code I am trying to write in (preferably in pure bash) where possible. I am thinking regex with do the trick, but need a little help.
pesudo code
if == ENDSINFIVEINTS ]]; then
do... (4 Replies)
Discussion started by: briandanielz
4 Replies
2. UNIX for Advanced & Expert Users
actually i am trying to find the lenght of fixed width file record reading from teradata db but its not working can u guys help me out?
code which i wrote---
colmn_lngth=`cat $RPT_FILE | awk -F~ '{print $1}'`
rm $RPT_FILE
while read line
do
result=`echo $line | wc -m`
... (4 Replies)
Discussion started by: Seshendranath
4 Replies
3. Shell Programming and Scripting
I made menu script for users so they can run other script without going in shell just from menu.
But i must control their input.
These are criteria:
Input must have 4 signs
First two signs are always lower case letters
Input shall not have some special signs just letters and numbers
... (1 Reply)
Discussion started by: waso
1 Replies
4. Shell Programming and Scripting
Using the KSH, write a shell script called display_by_length, which takes an absolute pathname to a directory and displays all ordinary files in the directory ordered by their length; for each file listed, display the name of the file and its length - nothing else. Extend this script to take an... (1 Reply)
Discussion started by: babuda0059
1 Replies
5. UNIX for Advanced & Expert Users
Hi
I want to know the maximum length of user name under NIS? I tried googling but it didnt help :(. If there is any command to find out this please let me know. I know on unix user name should be 8 characters long but just i want to know if i can have 9 letter user under mapped under NIS. (1 Reply)
Discussion started by: zedex
1 Replies
6. Shell Programming and Scripting
I'm not familiar with find.
If i use find in a certain directory i want it to show based on hierarchy.
find . type d
fol1
fol1/subfol1
fol1/subfol1/subfol1
fol2
fol2/subfol2
i want it to show like this
fol1/subfol1/subfol1
fol1/subfol1
fol1
fol2/subfol2
fol2
do i need to use... (5 Replies)
Discussion started by: ryandegreat25
5 Replies
7. Programming
I am facing a strange error while creating posix threads:
Given below are two snippets of code, the first one works whereas the second one gives a garbage value in the output.
Snippet 1
This works:
--------------
int *threadids;
threadids = (int *) malloc (num_threads * sizeof(int));
... (4 Replies)
Discussion started by: kmehta
4 Replies
8. Shell Programming and Scripting
Hi All,
I have a pipe separated flat file.But there is often some problem with the records.So is it possible to convert the '|' separated file into a fixed length file by means of some script.
The file has 11 columns which means 10 pipes.Your help is appreciated.
i'm using Sun OS Version... (2 Replies)
Discussion started by: kumarsaravana_s
2 Replies
9. UNIX for Dummies Questions & Answers
How to remove files with zero lenght with one or more commands from the same directory?
Thanks. (2 Replies)
Discussion started by: GNMIKE
2 Replies
10. IP Networking
How can change udp lenght?
Hello.
I have FreeBsd 4.7 and i want to change udp datagramm lenght.
Where it can be? What i must do? I can rebuild my core but it is not good for me.
Thanks! (4 Replies)
Discussion started by: Vvlad
4 Replies
SCANDIR(3) Library Functions Manual SCANDIR(3)
NAME
scandir, alphasort - scan a directory
SYNOPSIS
#include <sys/types.h>
#include <sys/dir.h>
scandir(dirname, namelist, select, compar)
char *dirname;
struct direct *(*namelist[]);
int (*select)();
int (*compar)();
alphasort(d1, d2)
struct direct **d1, **d2;
DESCRIPTION
Scandir reads the directory dirname and builds an array of pointers to directory entries using malloc(3). It returns the number of entries
in the array and a pointer to the array through namelist.
The select parameter is a pointer to a user supplied subroutine which is called by scandir to select which entries are to be included in
the array. The select routine is passed a pointer to a directory entry and should return a non-zero value if the directory entry is to be
included in the array. If select is null, then all the directory entries will be included.
The compar parameter is a pointer to a user supplied subroutine which is passed to qsort(3) to sort the completed array. If this pointer is
null, the array is not sorted. Alphasort is a routine which can be used for the compar parameter to sort the array alphabetically.
The memory allocated for the array can be deallocated with free (see malloc(3)) by freeing each pointer in the array and the array itself.
SEE ALSO
directory(3), malloc(3), qsort(3), dir(5)
DIAGNOSTICS
Returns -1 if the directory cannot be opened for reading or if malloc(3) cannot allocate enough memory to hold all the data structures.
4.2 Berkeley Distribution September 17, 1985 SCANDIR(3)