Hello
I am new to shell scripting and can anyone tell me how to check if there are any special characters in a file. Can i use grep ?
thanks
susie (2 Replies)
Hi All,
I am facing a weird problem. I have got a directory structure copied from windows to Linux. Some of the folders are named like
/gfs/data/Dow Jones $5/ DJ FCBOT_O_tick_1998.zip
/gfs/data/Dow Jones $5/ DJ FCBOT_O_tick_2000.CSV
/gfs/data/Dow Jones... (6 Replies)
Hi,
I am stuck with a problem here.
Suppose i have a variable which is assigned some string containing special charatcers. for eg:
$a="abcdef^bbwk#kdbcd@";
I have to remove the special characters using Perl. The text is assigned to the variable implicitly.
How to do it? (1 Reply)
Hi,
I am trying to separate the directory from the filename using the substring and it does not like it.
$Complete_name="C:\ABCD\Reports_Split\090308.1630"
I want $File_Name as 090308.1630
I tried using Substring function and it does not like slashes in the complete_name.
Any... (5 Replies)
Hi,
Here is my piece of code--
sub per_user_qna_detail
{
for($index=0;$index<@records;$index++)
{
if($records =~ m/^(.*)\s*Morocco.*Entering\s*Module::authenticate/)
{
printf "INSIDE per_user_qna_detail on LINE NO $index\n";
$Time_Stamp = $1;... (0 Replies)
I have 100 files, where i want to search a set of strings and make the replacement by other strings
In the first case I want to include a parameter in the name of a file
LOG_DCT = $ LOG_DIR/DCT_GERAL_"$DATAINI".log
replace to : LOG_DCT = $ LOG_DIR / DCT_GERAL_ $ 1_ "$ DATAINI". log
I did... (1 Reply)
I'm very new to awk and sed and I've been struggling with this for a while.
I'm trying to search a file for a string with special characters and this string is a command line argument to a simple script.
./myscript "searchpattern" file
#!/bin/sh
awk "/$1/" $2 > dupelistfilter.txt
sed... (6 Replies)
I have a perl find program that will find all files of window application stored on unix disks.
Ofcourse these files contain all the weird characters windows allows, but on *nix pukes out all kinds of unwanted effects when processing these.
Is their a utility that will escape all these... (3 Replies)
Hi all,
I have a list which I want to search in another file.
I can do that using
grep -f
but the search is failing due to special characters, how do I solve this?
One row in that list is
amino-acid permease inda1 gb|EDU41782.1| amino-acid permease inda1 Input file to be searched... (2 Replies)
Search special characters in a file and replace with meaningful text messages like Hello (2 Replies)
Discussion started by: raka_rjit
2 Replies
LEARN ABOUT BSD
directory
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)