Use and complete the template provided. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
Write a command that will delete the john directory, and all of its contents. The problem I can't firgure out is how to create a absoute path to... (5 Replies)
Under TEMP folder, it have many sub-folder, example"0015,0016,etc"
I need to discovery those file which are 2 days ago in this sub-folder , and list out to investigate, at the end delete all file in those sub folder, only keep the emptu directory. Thanks (4 Replies)
There are some files in a directory like a.tx~ , b.txt~,c.txt~.
I want to delete all these files inside that directory and sub directory.
How can i do this?
#!/bin/bash
cd thatdirectory
......
rm -rf *~
...... (7 Replies)
Hi ,
I am trying to make a cron job to delete the contents of a directory in a linux environment.The contents created before 2 days should get deleted by this job.Here is what i have written :
/usr/bin/find / -name *.log -ctime +2 -exec /bin/rm -f {} \;
Is it correct....If not so,please... (9 Replies)
Hi, what function do we use to delete only particular file that we want in directory shell script
for example I want only to delete test.txt in directory how to do it ? in sh
Thank (1 Reply)
I shared from linux server a dir with nfs3,solaris mount
ok,and can tar files,but if i do ls or cp..
on mnt i have mount the nfs share
root@solaris: mnt $ touch 2
root@solaris: mnt $ ls -lh
ls: can't read ACL on .: Permission denied
root@solaris: mnt $ ls
1.tar
2
root@solaris: mnt $ cp... (4 Replies)
I need a script which should watch a directory for a file with specific directory.
If it finds a file in directory, it should search for few specific keyword in the file. if the keyword exists, it should trim string from specific column.
The file should be moved to another directory and the a... (8 Replies)
Hi
My directory structure is as below.
dir1, dir2, dir3
I have the list of files to be deleted in the below path as below.
/staging/retain_for_2years/Cleanup/log $ ls -lrt
total 0
drwxr-xr-x 2 nobody nobody 256 Mar 01 16:15 01-MAR-2015_SPDBS2
drwxr-xr-x 2 root ... (2 Replies)
Discussion started by: prasadn
2 Replies
LEARN ABOUT LINUX
system
SYSTEM(3) Linux Programmer's Manual SYSTEM(3)NAME
system - execute a shell command
SYNOPSIS
#include <stdlib.h>
int system(const char *command);
DESCRIPTION
system() executes a command specified in command by calling /bin/sh -c command, 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(2) 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 command 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
C89, C99, POSIX.1-2001.
NOTES
If the _XOPEN_SOURCE feature test macro is defined (before including any header files), then the macros described in wait(2) (WEXITSTA-
TUS(), etc.) are made available when including <stdlib.h>.
As mentioned, system() ignores SIGINT and SIGQUIT. This may make programs that call it from a loop uninterruptible, 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 set-user-ID or set-group-ID 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 set-user-ID or set-group-ID 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.)
In versions of glibc before 2.1.3, the check for the availability of /bin/sh was not actually performed if command was NULL; instead it was
always assumed to be available, and system() always returned 1 in this case. Since glibc 2.1.3, this check is performed because, even
though POSIX.1-2001 requires a conforming implementation to provide a shell, that shell may not be available or executable if the calling
program has previously called chroot(2) (which is not specified by POSIX.1-2001).
It is possible for the shell command to return 127, so that code is not a sure indication that the execve(2) call failed.
SEE ALSO sh(1), signal(2), wait(2), exec(3)COLOPHON
This page is part of release 3.27 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/.
2010-09-10 SYSTEM(3)