10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I have c program that I run like this:
And my test files look like this all the way up to 100:
Is there a way to run this more efficiently so I don't have to hit up and change the number every time? (4 Replies)
Discussion started by: cokedude
2. Shell Programming and Scripting
1)In a particualr path i have a set of inputfiles like
........and so on
in above path there wil be nearly 15 to 20 files starting with map and in other path i have another file input file... (4 Replies)
Discussion started by: katakamvivek
3. Shell Programming and Scripting
I can rename a file with sequential numbers from 1 to N with this script:
for file in *.dat;do
mv "$file" "$(printf "%u" $num).txt"
The script begins with renaming a some.dat file to 1.dat.txt and goes on sequentially renaming other DAT files to... (1 Reply)
Discussion started by: shoaibjameel123
Writing a Tool to simulate non-sequential disk I/O (simulate db file sequential read) in C POSIX
I have over the years come across the same issue a couple of times, and it normally is that the read speed on SAN is absolutely atrocious when doing non-sequential I/O to the disks. Problem being of... (7 Replies)
Discussion started by: vrghost
5. Shell Programming and Scripting
I have a file sequential way i.e. written in contineous mode and the Record Seperator is AM from which the record is seperated .Now to process I have to make line sequential,and more over record length is not same it varies as per the input address,
AM1234563 John Murray 24 Old streeet old... (5 Replies)
Discussion started by: vakharia Mahesh
6. Shell Programming and Scripting
Could someone please assist on a quick way of How to extract data from indexed files (ISAM files) maintained in an UNIX(AIX) server.The file data needs to be extracted in flat text file or CSV or excel format .
Usually we have programs in microfocus COBOL to extract data, but would like... (2 Replies)
Discussion started by: devina
7. UNIX for Dummies Questions & Answers
I am having 3 files as
I want to merge thes file such that the resultnt file should be as (1 Reply)
Discussion started by: arunkumar_mca
8. UNIX for Advanced & Expert Users
I posted this over at Macnn and was redirected here... I'm not a unix programmer at all, but I have some backup if needed. Thanks in advance for any input.
Is there a command for the osX terminal that will list sequentially numbered groups of file as one line instead of individually,... (1 Reply)
Discussion started by: kentm
We have to convert a sequential file to a 80 char line sequential file (HP UX platform).The sequential file contains special characters. which after conversion of the file to line sequential are getting coverted into "new line" or "tab" and file is getting distorted. Is there any way to read these... (2 Replies)
Discussion started by: Rajeshsu
10. UNIX for Dummies Questions & Answers
I need to access files from a specific folder of a Linux system from an another Linux System Remotely.
I know how to, Export a folder on One SCO System & can access the same by using Import via., NFS in the Sco Unix SVR4 System using the scoadmin utility.
Also, I know to use mount -t ... (2 Replies)
Discussion started by: S.Vishwanath
elf_getscn(), elf_ndxscn(), elf_newscn(), elf_nextscn() - get section information for ELF files
Command: [flag]... file... [library]...
These functions provide indexed and sequential access to the sections associated with the ELF descriptor elf. If the program is building a
new file, it is responsible for creating the file's ELF header before creating sections; see elf_getehdr(3E).
returns a section descriptor, given an index into the file's section header table. Note the first "real" section has index 1. Although a
program can get a section descriptor for the section whose index is 0 the undefined section), the section has no data and the section
header is "empty" (though present). If the specified section does not exist, an error occurs, or elf is null, returns a null pointer.
creates a new section and appends it to the list for elf. Because the section is required and not "interesting" to applications, the
library creates it automatically. Thus the first call to for an ELF descriptor with no existing sections returns a descriptor for section
1. If an error occurs or elf is null, returns a null pointer.
After creating a new section descriptor, the program can use to retrieve the newly created, "clean" section header. The new section
descriptor will have no associated data (see elf_getdata(3E)). When creating a new section in this way, the library updates the member of
the ELF header and sets the bit for the section (see elf_flag(3E)). If the program is building a new file, it is responsible for creating
the file's ELF header (see elf_getehdr(3E)) before creating new sections.
takes an existing section descriptor, scn, and returns a section descriptor for the next higher section. One may use a null scn to obtain
a section descriptor for the section whose index is 1 (skipping the section whose index is If no further sections are present or an error
occurs, returns a null pointer.
takes an existing section descriptor, scn, and returns its section table index. If scn is null or an error occurs, returns
An example of sequential access appears below. Each pass through the loop processes the next section in the file; the loop terminates when
all sections have been processed.
scn = 0;
while ((scn = elf_nextscn(elf, scn)) != 0)
/* process section */
elf(3E), elf_begin(3E), elf_flag(3E), elf_getdata(3E), elf_getehdr(3E), elf_getshdr(3E).