everytime a new logfile get created at certain interval of time and i want a
simple shell script program which cat the lastest log file when manually excuted (1 Reply)
I have created a new user account on my openssh system.But the .ssh directory was not created under my home dir home/A00d56/. Could any one please suggest me whether the .ssh directory will be created automatically when we add the new user or we need to create that after?
The use of this new... (3 Replies)
I have created a new user account on my openssh system.But the .ssh directory was not created under my home dir home/A00d56/. Could any one please suggest me whether the .ssh directory will be created automatically when we add the new user or we need to manually create that after?
The use of... (3 Replies)
Hi,
I have some list of directories in the form datemonthyear e.g. 02082009, 03082009 and 04082009 etc.
I need to pick the latest directory from the current working directory.
Outcome:
05082009
This is the output am expecting.
Thanks (6 Replies)
I Need help for one requirement,
I want to move the latest/Older file in the folder to another file. File have the datetimestamp in postfix.
Example:
Source Directory : \a
destination Directory : \a\b
File1 : xy_MMDDYYYYHHMM.txt (xy_032120101456.txt)
File2: xy_MMDDYYYYHHMM.txt... (1 Reply)
I am trying to create Oracle user. I will install oracle after that. But my problem is /home/oracle directory is not being created.
bash-3.2# useradd -g oinstall -G dba,oper -d /home/oracle -m oracle
cp: /home/oracle: Operation not applicable
chown: /home/oracle: No such file or directory
... (3 Replies)
Hi,
I want to display latest files (created or modified) recursively in a path.
I tried in different ways, but didn't get any desired output:
find $path -type f -exec ls -lt {} \; | sort -n -r
find $path -type f -printf %p";" | xargs -d ";" ls -t
Second one is giving the error:... (21 Replies)
I wish to traverse the latest to the oldest directory based on its timestamp.
ls -ltr
drwxr-x--- 3 admin bel 1024 Jan 22 02:29 sys
drwxr-x--- 2 admin bel 2048 Jan 22 02:30 admin
drwxr-x--- 10 admin bel 24576 Jan 23 21:31 bin
For the above i need to cd first to... (2 Replies)
Hi all,
i have a folder, with tons of files containing as following,
on /my/folder/jobs/
some_name_2016-01-17-22-38-58_some name_0_0.zip.done
some_name_2016-01-17-22-40-30_some name_0_0.zip.done
some_name_2016-01-17-22-48-50_some name_0_0.zip.done
and these can be lots of similar files,... (6 Replies)
Discussion started by: charli1
6 Replies
LEARN ABOUT OPENDARWIN
tail
TAIL(1) BSD General Commands Manual TAIL(1)NAME
tail -- display the last part of a file
SYNOPSIS
tail [-F | -f | -r] [-b number | -c number | -n number] [file ...]
DESCRIPTION
The tail utility displays the contents of file or, by default, its standard input, to the standard output.
The display begins at a byte, line or 512-byte block location in the input. Numbers having a leading plus (``+'') sign are relative to the
beginning of the input, for example, ``-c +2'' starts the display at the second byte of the input. Numbers having a leading minus (``-'')
sign or no explicit sign are relative to the end of the input, for example, ``-n 2'' displays the last two lines of the input. The default
starting location is ``-n 10'', or the last 10 lines of the input.
The options are as follows:
-b number
The location is number 512-byte blocks.
-c number
The location is number bytes.
-f The -f option causes tail to not stop when end of file is reached, but rather to wait for additional data to be appended to the
input. The -f option is ignored if the standard input is a pipe, but not if it is a FIFO.
-F The -F option implies the -f option, but tail will also check to see if the file being followed has been renamed or rotated. The
file is closed and reopened when tail detects that the filename being read from has a new inode number. The -F option is ignored if
reading from standard input rather than a file.
-n number
The location is number lines.
-r The -r option causes the input to be displayed in reverse order, by line. Additionally, this option changes the meaning of the -b,
-c and -n options. When the -r option is specified, these options specify the number of bytes, lines or 512-byte blocks to display,
instead of the bytes, lines or blocks from the beginning or end of the input from which to begin the display. The default for the -r
option is to display all of the input.
If more than a single file is specified, each file is preceded by a header consisting of the string ``==> XXX <=='' where ``XXX'' is the name
of the file.
DIAGNOSTICS
The tail utility exits 0 on success, and >0 if an error occurs.
SEE ALSO cat(1), head(1), sed(1)STANDARDS
The tail utility is expected to be a superset of the IEEE Std 1003.2-1992 (``POSIX.2'') specification. In particular, the -F, -b and -r
options are extensions to that standard.
The historic command line syntax of tail is supported by this implementation. The only difference between this implementation and historic
versions of tail, once the command line syntax translation has been done, is that the -b, -c and -n options modify the -r option, i.e. ``-r
-c 4'' displays the last 4 characters of the last line of the input, while the historic tail (using the historic syntax ``-4cr'') would
ignore the -c option and display the last 4 lines of the input.
HISTORY
A tail command appeared in PWB UNIX.
BSD June 6, 1993 BSD