Login or Register to Ask a Question and Join Our Community


Programming

C - How to sheck if a path exists?

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Programming C - How to sheck if a path exists?
# 1  
Old 02-11-2011
C - How to sheck if a path exists?
How do i check if a path exists in C?
# 2  
Old 02-12-2011
man access
Code:
#include <unistd.h>
int access(const char *pathname, int mode);

# 3  
Old 02-12-2011
i am using
Code:
            dp = opendir(argv[i]);
            while(entry = readdir(dp)) { 
                stat(entry->d_name, &sbuf);
                if(S_ISDIR(sbuf.st_mode)==1) {
                    sprintf(wordtwo, "%s", entry->d_name);
                        printf(word);
                        printf("/");
                        printf(wordtwo);
                        printf("\n");
                }

for some reason, it prints a file name as well in subdirectories, its supposed to only print it if its a directory, whats wrong with the code?
Last edited by omega666; 02-12-2011 at 04:22 AM..
# 4  
Old 02-12-2011
maybe because of S_ISDIR return 0 as false while others as true.So,it may not be 1 when it's a directory.
# 5  
Old 02-12-2011
if i have a string, and its either the path to a file or directory, how do i check if its a path to file or if its a directory?
# 6  
Old 02-12-2011
stat & S_ISDIR & S_ISREG is a right way.
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Programming

Makefile missing include path Although the path exists and defined

i have make file which i try to make them generic but it keeps to compline it missing include directory this is the makefile : CXX=g++ CPPFAGS= -Wall -O0 -g -std=c++14 INCLUDES = -I/home/vagrant/libuv/include -Isrc LIBS_DIRS = -L/home/vagrant/libuv/build LDFLAGS=... (7 Replies)
Discussion started by: umen
7 Replies

2. UNIX for Beginners Questions & Answers

Convert Relative path to Absolute path, without changing directory to the file location.

Hello, I am creating a file with all the source folders included in my git branch, when i grep for the used source, i found source included as relative path instead of absolute path, how can convert relative path to absolute path without changing directory to that folder and using readlink -f ? ... (4 Replies)
Discussion started by: Sekhar419
4 Replies

3. Shell Programming and Scripting

How to figure out a if insensitive file path exists or not?

I use the below command with echo $? to determine if a file path exists. ls /app/weblogic/myserver4/logs/`hostname`/data/proc.pid Output: /app/weblogic/myserver4/logs/myhostseven/data/proc.pid The problem is that I have both AIX and Linux systems. On some servers hostname is either... (6 Replies)
Discussion started by: mohtashims
6 Replies

4. UNIX for Advanced & Expert Users

Command to see the logical volume path, device mapper path and its corresponding dm device path

Currently I am using this laborious command lvdisplay | awk '/LV Path/ {p=$3} /LV Name/ {n=$3} /VG Name/ {v=$3} /Block device/ {d=$3; sub(".*:", "/dev/dm-", d); printf "%s\t%s\t%s\n", p, "/dev/mapper/"v"-"n, d}' Would like to know if there is any shorter method to get this mapping of... (2 Replies)
Discussion started by: royalibrahim
2 Replies

5. Shell Programming and Scripting

Generate class path dynamically based on source path

Hi experts, I have multiple file names ending with .jsp located in $SOME_DIR, $SOME_DIR/f1/,$SOME_DIR/f2/test,$SOME_DIR/f3/fa and there are equivalent class files in $SOME_DIR/WEB-INF/classes/_pages,$SOME_DIR/WEB-INF/classes/_pages/_f1,... (0 Replies)
Discussion started by: oraclermanpt
0 Replies

6. Shell Programming and Scripting

Moving files from parent path to multiple child path using bash in efficient way

Hi All, Can you please provide some pointers to move files from Base path to multiple paths in efficient way.Folder Structure is already created. /Path/AdminUser/User1/1111/Reports/aaa.txt to /Path/User1/1111/Reports/aaa.txt /Path/AdminUser/User1/2222/Reports/bbb.txt to... (6 Replies)
Discussion started by: karthikgv417
6 Replies

7. Shell Programming and Scripting

File exists, but cannot be opened.How to check- whether it could be opened to read when it exists

Hi #Testing for file existence if ; then echo 'SCHOOL data is available for processing' else echo 'SCHOOL DATA IS NOT AVAILABLE FOR PROCESSING' : i wrote a script, where it begins by checking if file exists or not. If it exists, it truncates the database... (2 Replies)
Discussion started by: rxg
2 Replies

8. Shell Programming and Scripting

absolute path for a script ran with relative path

I have a script in which i want to print absolute path of the same script irrespective of path from where i run script. I am using test.sh: echo "pwd : `pwd`" echo "script name: $0" echo "dirname: `dirname $0`" when i run script from /my/test/dir/struct as ../test.sh the output i... (10 Replies)
Discussion started by: rss67
10 Replies

9. Shell Programming and Scripting

Executing Commands From Non-Standard Path (Changing user's PATH secretely???)

Hi: I have a requirement as below: I have some standard Unix commands modified and kept them in a directory say /usr/clsh/bin. For example I have a script named "ls" kept here which is modified version of "ls" (say it always gives long listing i.e. ls -l). When any user logs on and types... (2 Replies)
Discussion started by: ramesh_samane
2 Replies

10. Shell Programming and Scripting

How to check if all directories of file's path exists?

I wonder if the script below is possible to write somehow more efficiently. It seems to me the problem is very common.. CreateFolders() # parameter: name of file with relative path with regard to directory $project_root { echo $1 | awk '{ n=split($1, array, "/"); ... (2 Replies)
Discussion started by: MartyIX
2 Replies
Login or Register to Ask a Question