07-22-2009
pludi
Thanks a lot for your answer! I'm using SunOS 5.10 and its manual pages say nothing about modifying function's arguments... So AFAICS, calling these function with duplicate arguments is the one way to preserve value of original variable...
I consider to start using malloc and stuff later, when I get some experience on pointer operations...
cheers
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hello all,
Can somebody explain to me how set up a basename and dirname variable to simplify this script. I currently have a 'infile' with the contents of FTTPDataPVC_ & BaaisDSLFeed. I need to add a basename and or dirname variable so that any additions can be made through the infile and not... (1 Reply)
Discussion started by: liketheshell
1 Replies
2. Shell Programming and Scripting
I need to get the full path of a file minus the hostname... anyone have an easy way to do this?
What I have is:
//ourhostname/ourfullpath/filename
What I need is:
/ourfullpath/filename
hostname evaluates to 'ourhostname'
dirname evaluates to '//ourhostname/ourfullpath'
basename... (2 Replies)
Discussion started by: tink
2 Replies
3. Shell Programming and Scripting
Hi guys, last cry for help for today. I appreciate the help so far.
ok so I have a program that dumps a path into my script as a variable ($1)
This path is an example
/home/xbmc/sab_downloads/video/tv/grey's anatomy/season 3
So in order to search thetvdb.com for a show, I need to extract... (6 Replies)
Discussion started by: tret
6 Replies
4. Shell Programming and Scripting
Can someone please help me with this SHELL script?
I need to create a script that gets a positive number n as an argument. The script must calculate the factorial of its argument. In other words, it must calculate n!=1x2x3x...xn. Note that 0!=1.
Here is a start but I have no clue how to... (3 Replies)
Discussion started by: I-1
3 Replies
5. Shell Programming and Scripting
Hi all,
my problem:
(little extract from my bash-script)
I want to move each file (.mov) from one directory (and many Subdirectories) to another directory (only one);
after moving i want to create hardlinks to the old directories.
Thatīs no problem, but now:
source-directories... (4 Replies)
Discussion started by: tubian
4 Replies
6. Shell Programming and Scripting
If ($argv == “-debug”) then
Echo “in loop”
Endif
But this is not working. If I modify this code and remove “-“, then it works.
Similarly I am getting problem using grep command also
Grep “-debug” Filename
Can someone please help me on how to resolve these... (1 Reply)
Discussion started by: sarbjit
1 Replies
7. UNIX for Dummies Questions & Answers
Hi, okay, the following command was given to me in a script, but it's not working and there's little to no help on dirname. What is wrong with the following line? I'm just trying to save the current directory to use later in subsequent scripts.
MYAPPDIR=$(dirname $(dirname $0))
Thanks. (2 Replies)
Discussion started by: rebazon
2 Replies
8. Shell Programming and Scripting
We are using #!/bin/sh
From a command line this command returns the correct list of files (without going into any subdirectories)
find /vol.prod/saptrans/common/test/pa/* -prune -type f -print
We have a script which takes the same path as $1 (without the * )
... (2 Replies)
Discussion started by: 15a0
2 Replies
9. UNIX for Advanced & Expert Users
Hi All,
I am running the script
VBoxManage list vms |sed 's/"//g' | cut -d " " -f1 > har1out.mytxt
result=`cat har1out.mytxt | grep $1'
echo $result
echo $1
{
if
then
echo pass
else
echo fail
fi (2 Replies)
Discussion started by: harsha85
2 Replies
10. Shell Programming and Scripting
Hello,
I have a list of files generated like this:
find dir -type f > file_list
I want to get a list of just the unique directories. I can't create a temporary file. So the idea is to do a working equivalent to this:
cat file_list | dirname | uniq
But of course that doesn't... (4 Replies)
Discussion started by: brsett
4 Replies
BASENAME(3) Linux Programmer's Manual BASENAME(3)
NAME
basename, dirname - parse pathname components
SYNOPSIS
#include <libgen.h>
char *dirname(char *path);
char *basename(char *path);
DESCRIPTION
Warning: there are two different functions basename() - see below.
The functions dirname() and basename() break a null-terminated pathname string into directory and filename components. In the usual case,
dirname() returns the string up to, but not including, the final '/', and basename() returns the component following the final '/'. Trail-
ing '/' characters are not counted as part of the pathname.
If path does not contain a slash, dirname() returns the string "." while basename() returns a copy of path. If path is the string "/",
then both dirname() and basename() return the string "/". If path is a NULL pointer or points to an empty string, then both dirname() and
basename() return the string ".".
Concatenating the string returned by dirname(), a "/", and the string returned by basename() yields a complete pathname.
Both dirname() and basename() may modify the contents of path, so it may be desirable to pass a copy when calling one of these functions.
These functions may return pointers to statically allocated memory which may be overwritten by subsequent calls. Alternatively, they may
return a pointer to some part of path, so that the string referred to by path should not be modified or freed until the pointer returned by
the function is no longer required.
The following list of examples (taken from SUSv2) shows the strings returned by dirname() and basename() for different paths:
path dirname basename
"/usr/lib" "/usr" "lib"
"/usr/" "/" "usr"
"usr" "." "usr"
"/" "/" "/"
"." "." "."
".." "." ".."
RETURN VALUE
Both dirname() and basename() return pointers to null-terminated strings. (Do not pass these pointers to free(3).)
CONFORMING TO
POSIX.1-2001.
NOTES
There are two different versions of basename() - the POSIX version described above, and the GNU version, which one gets after
#define _GNU_SOURCE
#include <string.h>
The GNU version never modifies its argument, and returns the empty string when path has a trailing slash, and in particular also when it is
"/". There is no GNU version of dirname().
With glibc, one gets the POSIX version of basename() when <libgen.h> is included, and the GNU version otherwise.
BUGS
In the glibc implementation of the POSIX versions of these functions they modify their argument, and segfault when called with a static
string like "/usr/". Before glibc 2.2.1, the glibc version of dirname() did not correctly handle pathnames with trailing '/' characters,
and generated a segfault if given a NULL argument.
EXAMPLE
char *dirc, *basec, *bname, *dname;
char *path = "/etc/passwd";
dirc = strdup(path);
basec = strdup(path);
dname = dirname(dirc);
bname = basename(basec);
printf("dirname=%s, basename=%s
", dname, bname);
SEE ALSO
basename(1), dirname(1), feature_test_macros(7)
COLOPHON
This page is part of release 3.25 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
GNU
2009-03-30 BASENAME(3)