Login or Register to Ask a Question and Join Our Community


Programming

Filename from fp or fd

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Programming Filename from fp or fd
# 1  
Old 08-12-2002
Lightbulb Filename from fp or fd
Help!!!!!!!!!!!! Urgent......
How can i retrieve filename of a file associated with a FILE *fp or with a file descriptor???Smilie
# 2  
Old 08-12-2002
In general, you cannot as there is not a one-to-one map between fd's and filenames. Each file descriptor may represent zero, one, or more "file names" on the system. Besides, you already have the filename as it must have been used earlier in the program during an open(2) call.
# 3  
Old 08-13-2002
We can have one possible solution. Create a structure whose member variables would be a character array and a File pointer/Descriptor. Whenever a file is opened successfully , copy the file name into the character array member variable of the structure.
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Programming

to extract all the part of the filename before a particular word in the filename

Hi All, Thanks in Advance I am working on a shell script. I need some assistance. My code: if then set "subscriber" "promplan" "mapping" "dedicatedaccount" "faflistSub" "faflistAcc" "accumulator"\ "pam_account"; for i in 1 2 3 4 5 6 7 8;... (0 Replies)
Discussion started by: aealexanderraj
0 Replies

2. UNIX for Dummies Questions & Answers

to extract all the part of the filename before a particular word in the filename

Hi All, Thanks in Advance I am working on a shell script. I need some assistance. My Requirement: 1) There are some set of files in a directory like given below OTP_UFSC_20120530000000_acc.csv OTP_UFSC_20120530000000_faf.csv OTP_UFSC_20120530000000_prom.csv... (0 Replies)
Discussion started by: aealexanderraj
0 Replies

3. Shell Programming and Scripting

difference between sh filename.sh and . filename

Hi, Gurus, I feel sorry to ask this easy question, but to be honest, I really don't know. I have a question about execute shell script. I have script named as filename.sh with -rwxr-xr-x permission. when I execute it with . filename.sh It works properly. when I exec it with sh... (7 Replies)
Discussion started by: ken002
7 Replies

4. UNIX for Dummies Questions & Answers

"tail -n 1 filename" error while "head -n 1 filename" is ok?

Hi all, I was wondering why tail -n 2 filename produce an error when I manage to do similar command on head -n 2 filename SunOS{type8code0}: tail -n 2 filename usage: tail ] tail ] (2 Replies)
Discussion started by: type8code0
2 Replies

5. Shell Programming and Scripting

Filename from splitting files to have the same filename of the original file with counter value

Hi all, I have a list of xml file. I need to split the files to a different files when see the <ko> tag. The list of filename are B20090908.1100-20090908.1200_CDMA=1,NO=2,SITE=3.xml B20090908.1200-20090908.1300_CDMA=1,NO=2,SITE=3.xml B20090908.1300-20090908.1400_CDMA=1,NO=2,SITE=3.xml ... (3 Replies)
Discussion started by: natalie23
3 Replies

6. Shell Programming and Scripting

rename multiple filename.45267.txt to >> filename.txt

i have several thousand files and in subdirs that are named file.46634.txt budget.75346.pdf etc i want to remove the number but retain the extension. it is always a 5 digit. thanks. (6 Replies)
Discussion started by: jason7
6 Replies

7. Shell Programming and Scripting

gzcat into awk and then change FILENAME and process new FILENAME

I am trying to write a script that prompts users for date and time, then process the gzip file into awk. During the ksh part of the script another file is created and needs to be processed with a different set of pattern matches then I need to combine the two in the end. I'm stuck at the part... (6 Replies)
Discussion started by: timj123
6 Replies

8. Shell Programming and Scripting

mv Filename variable to another filename

Anyone who can assist : I am trying to pass the group vairiable to a filename: rpt_tsavegrp=/export/legato/scripts/$group_savegrp_rpt.$dat It will not pass to variable. Anyone have any ideas what I am doing wrong here. Thanks # This script sends email that save group completed.... (3 Replies)
Discussion started by: gzs553
3 Replies

9. Solaris

if [-f /<filename] then ????

Hi all, What do you mean when you say if then <some instructions> fi I know that it first checks if the <filename> is a ordinary file and if it exists and if so then goes ahead with the loop.. However what is the need to check if its a file or not...(unless there is a block device... (3 Replies)
Discussion started by: wrapster
3 Replies

10. UNIX for Dummies Questions & Answers

shortcut for tar cvf - [filename] | gzip > [filename].tar.gz

i'd like to have an alias (or something similar) where i can type a command like "archive" and a filename and have it tar and gzip the file, so... $ archive filename results in filename.tar.gz...do i have to write a script to do this? (4 Replies)
Discussion started by: bcamp1973
4 Replies
Login or Register to Ask a Question