I am trying to copy some files from one location to another and I need to write a script to move all the files and the subdirectories to the new location (both unix), but excluding the temp directory.
i.e., I want to avoid copying my temp subdirectories during the process of copying other files... (3 Replies)
Hi
if anyone could help me :)
I did a lot of search and 70% of answer is "how to count files in all subdirectories".
A basic problem for me is how to count files in every subdirectory separately then sort it by number of files
For example:
dir1
file1
file2
subdir11
dir2
dir3
... (3 Replies)
Hi All,
I am using the foolowing
find /home/vcrd/put -name '*.z' -mtime +5 -exec rm -f {} \;
in a shell script, it is deleting all file having *.z in /home/vcrd/put/appl sub directory. I donot want the files in the subdirectory are deleted.
Regards
Megh (2 Replies)
Hello,
I am trying to write a shell script to search for a pattern in the directory and show only one entry for each field, essentially I am looking to search for a pattern in a file and list that file name. (1 Reply)
I'm trying to organize my MB Pro by moving all my jpeg files to a single folder from the desktop. There are some on the desktop that are not in any folder. I was at the command line and typed
mv *.jpg "Jpeg files"
but it only moved the files that were on the desktop, not any of the ones that... (3 Replies)
Forgive me if there is an answer to this somewhere in the forums. I've gone through as much as I could but couldn't find a relevant answer.
What I'm trying to do is use the ll command to list some files in a subdirectory that matches a certain format.
I've tried ll *.*a* <subdirectory> but... (3 Replies)
I am trying to find all DAT files in a subdirectory named IN. I do not know the entire path.
For example: /stage/<?>/<?>/IN/file.DAT
I am using the find command without success:
find /stage -name IN -a -name '*.DAT' -print
What is the correct logic and syntax? Thank you for the help. (5 Replies)
Hello,
I'm very new to scripting languages and I'm to use shell script to write a utility to backup files with a specific extension into a subdirectory.
Here is what I have done.
#!/bin/bash
read -p "Enter file(s) extension: " FILE
if ; then
mkdir `whoami`.$FILE #To... (9 Replies)
How to Copy non-empty files into subdirectory
I have directory A
there are bunch of files: a.txt a.txt.target b.txt b.target.txt.......
How can i find out the non-empty file within *.txt.target and copy them into a subdirectory B?
Thank you. (2 Replies)
Discussion started by: grace_shen
2 Replies
LEARN ABOUT REDHAT
system
SYSTEM(3) Linux Programmer's Manual SYSTEM(3)NAME
system - execute a shell command
SYNOPSIS
#include <stdlib.h>
int system(const char *string);
DESCRIPTION
system() executes a command specified in string by calling /bin/sh -c string, and returns after the command has been completed. During
execution of the command, SIGCHLD will be blocked, and SIGINT and SIGQUIT will be ignored.
RETURN VALUE
The value returned is -1 on error (e.g. fork failed), and the return status of the command otherwise. This latter return status is in the
format specified in wait(2). Thus, the exit code of the command will be WEXITSTATUS(status). In case /bin/sh could not be executed, the
exit status will be that of a command that does exit(127).
If the value of string is NULL, system() returns nonzero if the shell is available, and zero if not.
system() does not affect the wait status of any other children.
CONFORMING TO
ANSI C, POSIX.2, BSD 4.3
NOTES
As mentioned, system() ignores SIGINT and SIGQUIT. This may make programs that call it from a loop uninterruptable, unless they take care
themselves to check the exit status of the child. E.g.
while(something) {
int ret = system("foo");
if (WIFSIGNALED(ret) &&
(WTERMSIG(ret) == SIGINT || WTERMSIG(ret) == SIGQUIT))
break;
}
Do not use system() from a program with suid or sgid privileges, because strange values for some environment variables might be used to
subvert system integrity. Use the exec(3) family of functions instead, but not execlp(3) or execvp(3). system() will not, in fact, work
properly from programs with suid or sgid privileges on systems on which /bin/sh is bash version 2, since bash 2 drops privileges on
startup. (Debian uses a modified bash which does not do this when invoked as sh.)
The check for the availability of /bin/sh is not actually performed; it is always assumed to be available. ISO C specifies the check, but
POSIX.2 specifies that the return shall always be non-zero, since a system without the shell is not conforming, and it is this that is
implemented.
It is possible for the shell command to return 127, so that code is not a sure indication that the execve() call failed.
SEE ALSO sh(1), signal(2), wait(2), exec(3)
2001-09-23 SYSTEM(3)