|
|
Sponsored Content
Top Forums
Shell Programming and Scripting
please explain the below
Post 302181812 by derek3131 on Friday 4th of April 2008 08:04:01 AM
04-04-2008
grep -i adding $logdir | grep -iv equation | awk '{print \$NF}' | sort -u | sed -e 's/\.\$//' > /tmp/t1
Looks like to me this is searching for lines of data in the $logdir that contain the word "adding" but does not contain the word "equation" then awk it searching those results for the number of fields, sort, sorts then and sed is looking to remove any \. or $ from that data, then its all getting written to a file in /tmp
I could be wrong though, I just started scripting a month ago
Looks like to me this is searching for lines of data in the $logdir that contain the word "adding" but does not contain the word "equation" then awk it searching those results for the number of fields, sort, sorts then and sed is looking to remove any \. or $ from that data, then its all getting written to a file in /tmp
I could be wrong though, I just started scripting a month ago
|
|
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
zsh 4.3.4% cat file
ACFCFACCACARCSHFARCVJVASTVAJFTVAJVGHBAJ
zsh 4.3.4% cat file1
A
C
F
R
zsh 4.3.4% <file1 while read;do printf "%s=%d\n" "$REPLY" "${#$(<file)//}";done
A=9
C=7
F=4
R=2
That was the previous post.
But , can anybody can explain me in detail about this line
zsh... (2 Replies)
Discussion started by: dummy_needhelp
2 Replies
2. Shell Programming and Scripting
I did not understand what is ${0##/}
PGM=${0##/}
TMP=/tmp/${PGM}.$$
Please explain me. (2 Replies)
Discussion started by: gadege
2 Replies
3. AIX
this is the mksys b script....
can anyone explain .. what # and 1 in if condition
this is the first line of the script... it is not from middle of the script....
if
then
echo "Not enough parameters, need a client name for mksysb"
Usage="Usage: $0 <client name>"
... (2 Replies)
Discussion started by: honeym210
2 Replies
4. UNIX for Dummies Questions & Answers
if
then
echo "Syntax: $0 <sid> <COLD/HOT> <DEST>"
exit
fi
if --------------what does this mean???
echo "Syntax: $0 <sid> <COLD/HOT> <DEST>"---pls explain this as well (2 Replies)
Discussion started by: appsdba.nitin
2 Replies
5. Shell Programming and Scripting
hi all i have an example i want one help me to understand cause i tried to test it but almost fail and i don't know how can i solve this problem " the main idea to read from two files and replace something from one to another " but i don't understand why it fail all time
$ cat main.txt... (4 Replies)
Discussion started by: maxim42
4 Replies
6. Homework & Coursework Questions
1. The problem statement, all variables and given/known data:
I have a retake assignment to complete for my computer networks and OS class. This isn't really my area, had I known last year I could have swapped it for a different module I would have done so. I'm determined to get through it... (6 Replies)
Discussion started by: Squall Moogle
6 Replies
7. Shell Programming and Scripting
I'm trying to follow a script and I see it begins with this:
if ; then
if ; then
print "blah $0 blah blah "
exit
fi
fi
What does $# mean? I found out that $1 refers to the shell environment and the last argument that was entered or passed in the previous command. I couldn't find $#... (2 Replies)
Discussion started by: MaindotC
2 Replies
8. Shell Programming and Scripting
why the case 2 will happen ? , ' should stop the history substitution ,shouldn't it?
case 1
# echo "123"|sed '/123/!d'
123
case 2
# echo "123
> 456
> 1
> "|sed '/123/!d'
-bash: !d': event not found
case 3
# echo "123
> 456
> 12
> "|sed '/123/'\!d
123
# bash --version (1 Reply)
Discussion started by: justlooks
1 Replies
9. Shell Programming and Scripting
Can someone do me a favour and explain the following for me:
((r=$RANDOM%$n+1))
I know what $RANDOM does but what is % sign and what does it do with %$n+1? (2 Replies)
Discussion started by: bashily
2 Replies
10. UNIX for Dummies Questions & Answers
Hi friends! I'm learning UNIX and I have a small question. Working with Shell, i put the name of one executable (in c language) + one number and it says this:
$ gcc misterioso_4.c
$ ./misterioso_4 6
got: ,
I can not find an answer in the manual because I havent applied any variable.... (5 Replies)
Discussion started by: dakota
5 Replies
LEARN ABOUT DEBIAN
amtoc
AMTOC(8) System Administration Commands AMTOC(8) NAME
amtoc - generate TOC (Table Of Contents) for an Amanda run SYNOPSIS
amtoc [-a] [-i] [-t] [-f file] [-s subs] [-w] [--] logfile DESCRIPTION
Amtoc generates a table of contents for an Amanda run. It's a perl script (if you don't have perl, install it first!). OPTIONS
-a The output file name will be label-of-the-tape.toc in the same directory as logfile. -i Display help about amtoc. -t Generate the output in tabular form. -f file Write the output to a file ('-' for stdout). -s subs Evaluate the output file name from subs, with $_ set to label-of-the-tape. The -a option is equivalent to -s 's/$_/.toc/'. -w Separate tapes with form-feeds and display blank lines before totals. -- Marks the last option so the next parameter is the logfile. logfile (use '-' for stdin) OUTPUT FORMAT
The standard output has five fields separated by two spaces: # Server:/partition date level size[Kb] 0 daily-05: 19991005 - - 1 cuisun15:/cuisun15/home 19991005 1 96 2 cuinfs:/export/dentiste 19991005 1 96 ... 103 cuisg11:/ 19991005 0 4139136 103 total: - - 16716288 In tabular format (-t), this would look like: # Server:/partition date lev size[Kb] 0 daily-05: 19991005 - - 1 cuisun15:/cuisun15/home 19991005 1 96 2 cuinfs:/export/dentiste 19991005 1 96 ... 103 cuisg11:/ 19991005 0 4139136 103 total: - - 16716288 USAGE
The easiest way to use it is to run amtoc right after amdump in the cron job: amdump daily ; logdir=`amgetconf daily logdir` ; log=`ls -1t $logdir/log.*.[0-9] | head -1` ; amtoc -a $log which will generate /usr/local/etc/amanda//daily/tape_label.toc. You may also want to call amtoc after an amflush. SEE ALSO
amanda(8), amdump(8), amflush(8), amgetconf(8) The Amanda Wiki: : http://wiki.zmanda.com/ AUTHORS
Nicolas Mayencourt <Nicolas.Mayencourt@cui.unige.ch> University of Geneva/Switzerland Stefan G. Weichinger <sgw@amanda.org> Amanda 3.3.1 02/21/2012 AMTOC(8)