Hi,
Could you please explain me the below statement -- phrase wise.
sed -e :a -e '$q;N;'$cnt',$D;ba' abc.txt > xyz.txt
if suppose $cnt contains value: 10
it copies last 9 lines of abc.txt to xyz.txt
why it is copying last 9 rather than 10.
and also what is ba and $D over there in... (4 Replies)
Hi,
The following command works fine for me, but I could not grasp the logic working behind of sed command, it's obscure to me :( :confused:
echo "./20080916/core/audioex.amr" | sed "s%\(\)/%\1_%g"
o/p: ./20080916_core_audioex.amr
Could anyone please explain to me in detail, that how... (6 Replies)
Hello everyone,
I found this command line in a website:
perl -pi.bak -we's/\z/Your new line\n/ if $. == 2;' your_text_file.txt
With this command line you can insert a new line anywhere you want in a text without overwriting what's in it.
-p causes perl to assume a loop around your... (4 Replies)
This is my first post so hi to you all. I have browsed these forums in the past and what a great community and resource this is! Thanks to all the contributors ... I look forward to being able to give something back.
In the meantime, I have a little conundrum concerning sed. My very simple... (6 Replies)
Hi Friends,
I am trying to modify a script .The script contains this line:
sed -n -e 's_.*>\(.*\)<.*_\1_p' filename.xml
I am not great in sed command.I know, it is regular expression
to match a pattern string that starts with s_ and ends with 1_.I doesnot give the desired result.
Can... (4 Replies)
sed '$!N; /^\(.*\)\n\1$/!P; D'
i found this file which removes duplicates irrespective for sorted or unsorted file. keep first occurance and remove the further occurances.
can any1 explain how this is working..
i need to remove duplicates following file. duplicate criteria is not the... (3 Replies)
can anyone please tell me what does this expression means , i am under probation and need some explanation :)
$AUDIT_DIR -type f -mtime +$AUDIT_EXPIRE \ -exec rm {} > /dev/null 2>&1 \;
AUDIT_DIR="/var/log/"
AUDIT_EXPIRE='30'
Please use code tags! (4 Replies)
Hi everyone,
I am wondering if someone could please break down and explain the following sort command for me:
ls ${DEST_LOCATION}/${FILES} | sort -rt -k 4,4n | head -1
I have tried working it out using 'man sort', but on AIX there is not a great explanation of this function. I know that... (9 Replies)
Hi Folks,
I am struggling to understand nawk command which was used by another developer.
Can you please explain what each character or string is doing here below:
if ; then (3 Replies)
Discussion started by: kirans.229
3 Replies
LEARN ABOUT PHP
fs_whereis
FS_WHEREIS(1) AFS Command Reference FS_WHEREIS(1)NAME
fs_whereis - Reports each file server housing a file or directory
SYNOPSIS
fs whereis [-path <dir/file path>+] [-help]
fs whe [-p <dir/file path>+] [-h]
DESCRIPTION
The fs whereis command returns the name of each file server machine that houses the volume containing each directory or file named by the
-path argument.
OPTIONS -path <dir/file path>+
Names each AFS file or directory for which to return the host file server machine. Partial pathnames are interpreted relative to the
current working directory, which is also the default value if this argument is omitted.
-help
Prints the online help for this command. All other valid options are ignored.
OUTPUT
The output includes a line for each specified directory or file. It names the file server machine on which the volume that houses the
specified directory or file resides. A list of multiple machines indicates that the directory or file is in a replicated volume.
Machine names usually have a suffix indicating their cell membership. If the cell is not clear, use the fs whichcell command to display the
cell in which the directory or file resides. To display the cell membership of the local machine, use the fs wscell command.
EXAMPLES
The following example indicates that volume housing the directory /afs/abc.com resides is replicated on both "fs1.abc.com" and
"fs3.abc.com":
% fs whereis -path /afs/abc.com
File /afs/abc.com is on hosts fs1.abc.com fs3.abc.com
PRIVILEGE REQUIRED
None
SEE ALSO fs_whichcell(1), fs_wscell(1)COPYRIGHT
IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved.
This documentation is covered by the IBM Public License Version 1.0. It was converted from HTML to POD by software written by Chas
Williams and Russ Allbery, based on work by Alf Wachsmann and Elizabeth Cassell.
OpenAFS 2012-03-26 FS_WHEREIS(1)