10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hello,
For several of our scripts we are using awk to search patterns in files with data from other files. This works almost perfectly except that it takes ages to run on larger files. I am wondering if there is a way to speed up this process or have something else that is quicker with the... (15 Replies)
Discussion started by: SDohmen
15 Replies
2. Programming
Hello,
Attached is my very simple C++ code to remove any substrings (DNA sequence) of each other, i.e. any redundant sequence is removed to get unique sequences. Similar to sort | uniq command except there is reverse-complementary for DNA sequence. The program runs well with small dataset, but... (11 Replies)
Discussion started by: yifangt
11 Replies
3. UNIX for Dummies Questions & Answers
Hi ,
i wrote a script to convert dates to the formate i want .it works fine but the conversion is tkaing lot of time . Can some one help me tweek this script
#!/bin/bash
file=$1
ofile=$2
cp $file $ofile
mydates=$(grep -Po '+/+/+' $ofile) # gets 8/1/13
mydates=$(echo "$mydates" | sort |... (5 Replies)
Discussion started by: vikatakavi
5 Replies
4. Programming
Input file:
#content_1
12314345345
242467
#content_14
436677645
576577657
#content_100
3425546
56
#content_12
243254546
1232454
.
.
Reference file:
content_100 (1 Reply)
Discussion started by: cpp_beginner
1 Replies
5. Shell Programming and Scripting
Hi,
I have around one lakh records. I have used XML for the creation of the data.
I have used these 2 Perl modules.
use XML::DOM;
use XML::LibXML;
The data will loo like this and most it is textual entries.
<eid>19000</eid>
<einfo>This is the ..........</einfo>
......... (3 Replies)
Discussion started by: vanitham
3 Replies
6. Shell Programming and Scripting
Hi All,
I have written a script as follows which is taking lot of time in executing/searching only 3500 records taken as input from one file in log file of 12 GB Approximately.
Working of script is read the csv file as an input having 2 arguments which are transaction_id,mobile_number and search... (6 Replies)
Discussion started by: poweroflinux
6 Replies
7. Shell Programming and Scripting
I have a data file of 2 gig
I need to do all these, but its taking hours, any where i can improve performance, thanks a lot
#!/usr/bin/ksh
echo TIMESTAMP="$(date +'_%y-%m-%d.%H-%M-%S')"
function showHelp {
cat << EOF >&2
syntax extreme.sh FILENAME
Specify filename to parse
EOF... (3 Replies)
Discussion started by: sirababu
3 Replies
8. UNIX for Dummies Questions & Answers
hi someone tell me which ways i can improve disk I/O and system process performance.kindly refer some commands so i can do it on my test machine.thanks, Mazhar (2 Replies)
Discussion started by: mazhar99
2 Replies
9. Shell Programming and Scripting
Hi All,
I am using grep command to find string "abc" in one file .
content of file is
***********
abc = xyz
def= lmn
************
i have given the below mentioned command to redirect the output to tmp file
grep abc file | sort -u | awk '{print #3}' > out_file
Then i am searching... (2 Replies)
Discussion started by: pooga17
2 Replies
10. UNIX for Advanced & Expert Users
Hi ,
i'm searching for files over many Aix servers with rsh command using this request :
find /dir1 -name '*.' -exec ls {} \;
and then count them with "wc"
but i would improve this search because it's too long and replace directly find with ls command but "ls *. " doesn't work.
and... (3 Replies)
Discussion started by: Nicol
3 Replies
udfs(7FS) File Systems udfs(7FS)
NAME
udfs - universal disk format file system
DESCRIPTION
The udfs file system is a file system type that allows user access to files on Universal Disk Format (UDF) disks from within the Solaris
operating environment. Once mounted, a udfs file system provides standard Solaris file system operations and semantics. That is, users can
read files, write files, and list files in a directory on a UDF device and applications can use standard UNIX system calls on these files
and directories.
Because udfs is a platform-independent file system, the same media can be written to and read from by any operating system or vendor.
Mounting File Systems
udfs file systems are mounted using:
mount-F udfs -o rw/ro device-special
Use:
mount /udfs
if the /udfs and device special file /dev/dsk/c0t6d0s0 are valid and the following line (or similar line) appears in your /etc/vfstab file:
/dev/dsk/c0t6d0s0 - /udfs udfs - no ro
The udfs file system provides read-only support for ROM, RAM, and sequentially-recordable media and read-write support on RAM media.
The udfs file system also supports regular files, directories, and symbolic links, as well as device nodes such as block, character, FIFO,
and Socket.
SEE ALSO
mount(1M), mount_udfs(1M), vfstab(4)
NOTES
Invalid characters such as "NULL" and "/" and invalid file names such as "." and ".." will be translated according to the following rule:
Replace the invalid character with an "_," then append the file name with # followed by a 4 digit hex representation of the 16-bit CRC of
the original FileIdentifier. For example, the file name ".." will become "__#4C05"
SunOS 5.11 29 Mar 1999 udfs(7FS)