Hi all,
I'm trying to wirte a small shell script in Linux. My script has the flow like,
cmd1
cmd2
cd testdata
cmd3
After exiting the program, the CWD remains the same as where I execute the program. I need it to be changed to the latest updated directory in the program. How can I do... (1 Reply)
hi,
Iam in directory A. I run a script from there. inside the script i have a command cd B.
When i come out of the script directory is A only.
Even when i come out scrip i want the directory to be B
How to achieve (2 Replies)
Hi I have abc_ahb_one.v
abc_ahb_two.v
abc_ahb_three.v
........l
like this
-----upto
abc_ahb_ninety.v in some directory.
I need to change those file names to like below.
... (5 Replies)
I have a simple shell script that prompts the user to enter a directory to navigate to.
What i want it to do and i don't know how to do this is if the directory is invalid automatically navigate to the home directory.
echo "enter a directory to navigate to:"
read directory
cd $directory... (6 Replies)
Dear all expects,
I have a security problem that I would like to resolve.
I need to create a user ID in my AIX 5.3 environment and to point the login to a specific directory for FTP purposes. There is only 2 directories that I can allow the user ID to perform read/write. I would like to prevent... (2 Replies)
Hi,
I Installed mysql on my CentOS 6.2 Server. But when I tried to change the location of /var/lib/mysql to another directory. I can't start the mysql. Below is what I've done
yum install mysql mysql-server mysql-devel
mkdir /path/to/new/
cp -R /var/lib/mysql /path/to/new
chown -R... (1 Reply)
I am trying to do the following task :
export ENV=aaa
export ENV_PATH=$(cd /apps | ls | grep $ENV)
However, it's not working. What's the way to change to directory and search some file in that directory in single command
Please help. (2 Replies)
Hi All,
There is a code like below in my script
###############################################
###Create Directories and Sub-Directories
###############################################
dpdir=DP_FROM_${from}_TO_${to}
mkdir $dpdir
cd $dpdir
mkdir AWQM WFCONTROLLER PROVCO PRISM
... (1 Reply)
#!/bin/bash
echo -n "Enter number of sanger patients : "; read id
perl -ne 'chomp; system ("perl table_annovar.pl $_ humandb/ -buildver hg19 -protocol refGene,popfreq_all,common,clinvar,clinvarsubmit,clinvarreference -operation g,f,f,f,f,f -otherinfo")' < file.txt
I have the above script... (7 Replies)
Discussion started by: cmccabe
7 Replies
LEARN ABOUT BSD
closedir
DIRECTORY(3) Library Functions Manual DIRECTORY(3)NAME
opendir, readdir, telldir, seekdir, rewinddir, closedir - directory operations
SYNOPSIS
#include <sys/types.h>
#include <sys/dir.h>
DIR *opendir(filename)
char *filename;
struct direct *readdir(dirp)
DIR *dirp;
long telldir(dirp)
DIR *dirp;
seekdir(dirp, loc)
DIR *dirp;
long loc;
rewinddir(dirp)
DIR *dirp;
closedir(dirp)
DIR *dirp;
DESCRIPTION
Opendir opens the directory named by filename and associates a directory stream with it. Opendir returns a pointer to be used to identify
the directory stream in subsequent operations. The pointer NULL is returned if filename cannot be accessed, or if it cannot malloc(3)
enough memory to hold the whole thing.
Readdir returns a pointer to the next directory entry. It returns NULL upon reaching the end of the directory or detecting an invalid
seekdir operation.
Telldir returns the current location associated with the named directory stream.
Seekdir sets the position of the next readdir operation on the directory stream. The new position reverts to the one associated with the
directory stream when the telldir operation was performed. Values returned by telldir are good only for the lifetime of the DIR pointer
from which they are derived. If the directory is closed and then reopened, the telldir value may be invalidated due to undetected direc-
tory compaction. It is safe to use a previous telldir value immediately after a call to opendir and before any calls to readdir.
Rewinddir resets the position of the named directory stream to the beginning of the directory.
Closedir closes the named directory stream and frees the structure associated with the DIR pointer.
Sample code which searchs a directory for entry ``name'' is:
len = strlen(name);
dirp = opendir(".");
for (dp = readdir(dirp); dp != NULL; dp = readdir(dirp))
if (dp->d_namlen == len && !strcmp(dp->d_name, name)) {
closedir(dirp);
return FOUND;
}
closedir(dirp);
return NOT_FOUND;
SEE ALSO open(2), close(2), read(2), lseek(2), dir(5)4.2 Berkeley Distribution September 24, 1985 DIRECTORY(3)