I have a number of files of the format filename.xfr_mmddyy_%H%M%S which i get in a specified directory daily. Now i want to search in the specified directory & delete the files which are more than 2 days old .So I use a command
find $DIR/backup/* -ctime +2 -exec rm -f {} \;
But after executing... (1 Reply)
I'm having problems deleting a file with a special character and I'm hoping that somebody here can help. The file "-osample1.c" will not remove from my directory. Here is an example of what happens. Any ideas would be appreciated.
> ls *sample1*
ls: illegal option -- .
usage: ls... (2 Replies)
All,
I am trying to delete a user created file from specified folder. This folder is using for my Team member (i.e, Public folder). For example,
$ ls -l
total 1336
-rw-rw-r-- 1 g_btha customer 2655 Dec 06 12:35 A_COL_1001
While deleting/moving this file I am getting the following... (3 Replies)
Hello:
I made this mistake on my tru64 machine, I renamed a file from:
binary.errlog to binary.errlog(B3)
now when im tryign to move or delete the file Im getting:
# rm binary.errlog(B3)
ksh: syntax error: `(' unexpected
4# mv binary.errlog(B3) log
ksh: syntax error: `(' unexpected
... (3 Replies)
hi friends,
i need to delete a file named "-vyxx-.0.sdct.txt"
i'm unable to use
"rm -vyxx-.0.sdct.txt"
jus give me your suggesstions
thanks in advance (5 Replies)
Hi All
I am not able to delete few line from long file.
I have a big file which is of 53998 B in size i want to delete lines starting from 32768 to 53998 and collect remaining file in new file.
It is giving exception
sed: command garbled: 32768,$countd
Please find the sample script... (2 Replies)
Hi,
I have a folder A which contains files 1,2,3... I also have a file xyz under a diff folder B containg the entries 1,2,3...
I am trying to compare and delete the nonexisting ones from xyz using the below code:
QFILE=/B/xyz
cd A
ls -1 > /tmp/file1
for fname in `cat $QFILE`
do
if ... (4 Replies)
Hi Guys,
In one of my folders i have 10000 log files starting with sqlfile.....
Iam trying to delete the log files alone from the folder using for loop but i am getting an error
ksh: /usr/bin/ls: 0403-027 The parameter list is too long.
For loop i used
for i in `ls sqlfile*`... (4 Replies)
hi,
1. When i am deleting file in the linux machine i am getting below error message.
rm text.fil
rm: remove regular file `text.fil'? y
rm: cannot remove `text.fil': Read-only file system
From su also i tried i am getting same error message.
2. Some times the file permissions and user name... (1 Reply)
Hi, everybody!
I have a big problem. I don't understand Unix, but I work as a system administrator, and sometimes I make some data exports and I have to delete old .dmp files, but today I had a mistake, I wrote rm * 909*
This is a part of my folder contents in unix before deleting
drwxrwxr-x 2... (4 Replies)
Discussion started by: susan12
4 Replies
LEARN ABOUT DEBIAN
flock
FLOCK(1) User Commands FLOCK(1)NAME
flock - manage locks from shell scripts
SYNOPSIS
flock [-sxon] [-w timeout] lockfile [-c] command...
flock [-sxon] [-w timeout] lockdir [-c] command...
flock [-sxun] [-w timeout] fd
DESCRIPTION
This utility manages flock(2) locks from within shell scripts or the command line.
The first and second forms wraps the lock around the executing a command, in a manner similar to su(1) or newgrp(1). It locks a specified
file or directory, which is created (assuming appropriate permissions), if it does not already exist.
The third form is convenient inside shell scripts, and is usually used the following manner:
(
flock -n 9 || exit 1
# ... commands executed under lock ...
) 9>/var/lock/mylockfile
The mode used to open the file doesn't matter to flock; using > or >> allows the lockfile to be created if it does not already exist, how-
ever, write permission is required; using < requires that the file already exists but only read permission is required.
By default, if the lock cannot be immediately acquired, flock waits until the lock is available.
OPTIONS -s, --shared
Obtain a shared lock, sometimes called a read lock.
-x, -e, --exclusive
Obtain an exclusive lock, sometimes called a write lock. This is the default.
-u, --unlock
Drop a lock. This is usually not required, since a lock is automatically dropped when the file is closed. However, it may be
required in special cases, for example if the enclosed command group may have forked a background process which should not be hold-
ing the lock.
-n, --nb, --nonblock
Fail (with an exit code of 1) rather than wait if the lock cannot be immediately acquired.
-w, --wait, --timeout seconds
Fail (with an exit code of 1) if the lock cannot be acquired within seconds seconds. Decimal fractional values are allowed.
-o, --close
Close the file descriptor on which the lock is held before executing command. This is useful if command spawns a child process
which should not be holding the lock.
-c, --command command
Pass a single command to the shell with -c.
-h, --help
Print a help message.
AUTHOR
Written by H. Peter Anvin <hpa@zytor.com>.
COPYRIGHT
Copyright (C) 2003-2006 H. Peter Anvin.
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
LAR PURPOSE.
SEE ALSO flock(2)AVAILABILITY
The flock command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.
util-linux February 2006 FLOCK(1)