Perl write and read on same file Post: 302845675

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

read and write from a file

I have tried to show the file name whose size is greater than 200 byte in current directory. Please help me. ls -l | tr -s " " " " | cut -f 5,9 -d " " >out.txt #set -a x `cat out.txt` i=0 `cat out.txt` | while do read x echo $x #re=200 j=0 if }" < "200" ] then echo $j j=`expr $j...

2. Shell Programming and Scripting

perl -write values in a file to @array in perl

Hi can anyone suggest me how to write a file containing values,... say 19 20 21 22 .. 40 to an array @array = (19, 20, ... 40) -- Thanks

3. Shell Programming and Scripting

perl read and write to conf file

Hi Everyone, There is a perl file: a.pl ============ #!/usr/bin/perl my $config_file = $ARGV; open CONFIG, "$config_file" or die "Program stopping, couldn't open the configuration file '$config_file'.\n"; my $config = join "", <CONFIG>; close CONFIG; eval $config; die "Couldn't...

4. IP Networking

read/write,write/write lock with smbclient fails

Hi, We have smb client running on two of the linux boxes and smb server on another linux system. During a backup operation which uses smb, read of a file was allowed while write to the same file was going on.Also simultaneous writes to the same file were allowed.Following are the settings in the...

5. Shell Programming and Scripting

perl script to check read/write/execute permission for 'others'

I want to check access rights permissions not for 'user', not for 'group', but for 'others'. I want to do it by system command in which i want to use 'ls -l' and 'awk' command. I have written the following program : #!/usr/bin/local/perl #include <stdlib.h> system ("ls -l | awk...

6. Shell Programming and Scripting

File Read and Write

I have got a file in following format: AAAAAAA BBBBBBBB CCCCCCC DDDDDDD I am trying to read this file and out put it in following format: AAAAAAA,BBBBBBB,CCCCCCC,DDDDDD Preferred method is shell or Perl. Any help appreciated.

7. Shell Programming and Scripting

Read and write in the file

Hello Guys, How all are doing? I have an issue in Unix and want help from all of you I have a file in UNIX which it read by line by line , If at the end of line '0' is written the it should fetch that line into another file and change '0' to '1' and If at the end of line '1' is written then it...

8. Shell Programming and Scripting

Need a perl script to read and write the data

Hi, I have on Designdocument in that information is stored with in tabular format.I need Perlscript to read and write the datausing perl script? Regards, Ravi

9. Shell Programming and Scripting

Need a UNIX/perl script to read and write the data

Hi, I have on Designdocument in that information is stored with in tabular format.I need Perl/unix script to read and write the data using perl script? Regards, Ravi

10. Shell Programming and Scripting

Read/write perl file

Hi I am trying to build a web form where it can take the input from the user and write it to a file. And when I will open that form again that for should read the file that was created at the 1st step and all the fields should auto populate from that file. I have 20 text fields in my form. I...

LEARN ABOUT OSF1

tis_write_lock

tis_write_lock(3)					     Library Functions Manual						 tis_write_lock(3)

NAME

       tis_write_lock - Acquires the specified read-write lock for write access.

LIBRARY

       Standard C Library (libc.so, libc.a)

SYNOPSIS

       #include <tis.h>

       int   tis_write_lock(
			       tis_rwlock_t   *lock);

STANDARDS

       None

PARAMETERS

       Address of the read-write lock to be acquired for write access.

DESCRIPTION

       This  routine acquires a read-write lock for write access.  This routine waits for any other active locks (for either read or write access)
       to be unlocked before this acquisition request is granted.

       This routine returns when the specified read-write lock is acquired for write access.

RETURN VALUES

       If an error condition occurs, this routine returns an integer value indicating the type of error.  Possible return values are  as  follows:
       Successful completion.  The value specified by lock is not a valid read-write lock.

ERRORS

       None

RELATED INFORMATION

       Functions:  tis_read_lock(3),  tis_read_trylock(3),  tis_read_unlock(3),  tis_rwlock_destroy(3),  tis_rwlock_init(3), tis_write_trylock(3),
       tis_write_unlock(3)

       Manuals: Guide to DECthreads and Programmer's Guide delim off

																 tis_write_lock(3)