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UNIX for Beginners Questions & Answers
Non printing option in sed is behaving oddly
Post 303036677 by Scrutinizer on Sunday 7th of July 2019 09:35:10 PM
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1. Shell Programming and Scripting
I have attached a file with few records. First 2 characters of each record are binary characters. I can remove it by
and it works fine. But
is behaving differently and removing more than expected characters. Can someone help me in accomplishing it through sed? Thanks in advance. (13 Replies)
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Can anyone give detailed and example for sed -i option.
Where can we use this option?:) (3 Replies)
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Hi,
What does the following command do on files?
sed '1b; $d'
To me it just deletes the last line of the file. If so what is the significance of sed's 'b' option?
Thanks (1 Reply)
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4. Shell Programming and Scripting
Hi, all.
Here's the problem:
sed '/FOO/,/BAR/p'
That should print anything between FOO and BAR, right?
Well, let's say I have file.txt that contains just one line "how are you today?".
Then I run something like the above and get:
$ sed '/how/,/today/p' file.txt
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5. Shell Programming and Scripting
sed "s/^/8,A1,$dat,id2_3,/g" -e sed "s/$/,,,,,,,,,,,/g" temporary
wn m running this script m getting a error... plz help me with this....
O/p
sed: -e expression #1, char 3: unterminated `s' command
---------- Post updated at 11:35 AM ---------- Previous update was at 11:33 AM... (7 Replies)
Discussion started by: nikhil jain
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6. Shell Programming and Scripting
Hi i am facing problem with sed -n option could you please help me on this, i have a file test the contents of the file is
width="75">10/0 4/12</td>^M><a href='courtorders/100412zr.pdf' target="_blank">Miscellaneous Order</a></td>^M width="75">10/01/12</td>^M><a href='courtorde... (8 Replies)
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7. Shell Programming and Scripting
Hi,
I have the following command.(Delete all trailing blank lines at the end of a file.)
sed -e :a -e '/^\n*$/{$d;N;ba' -e '}'
I don't understand the logic of this command and also I don't understand why -e is used.
Can you please let me know the logic of this command and why three -e... (5 Replies)
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I accidentally saved a txt file in vi with the name ":q!".
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9. Shell Programming and Scripting
I have 4000 files like
$cat clus_grp_seq10_g.phy
18 1002
anig_OJJ65951_1 ATGGTTTCGCAGCGTGATAGAGAATTGTTTAGGGATGATATTCGCTCGCGAGGAACGAAGCTCAATGCTGCCGAGCGCGAGAGTCTGCTAAGGCCATATCTGCCAGATCCGTCTGACCTTCCACGCAGGCCACTTCAGCGGCGCAAGAAGGTTCCTCG
aver_OOF92921_1 ... (1 Reply)
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10. UNIX for Beginners Questions & Answers
Hi I'm having a problem with a sed command that I thought I was using correctly but apparently that's not the case.
I was hoping someone here could point out what it is I am doing wrong?
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2 Replies
LEARN ABOUT DEBIAN
torrus_monitor
TORRUS_MONITOR(8) torrus TORRUS_MONITOR(8) NAME
monitor - Torrus Monitor. SYNOPSIS
torrus monitor --tree=TREENAME [options...] DESCRIPTION
This command starts the Monitor process for the tree TREENAME. By default it forks into a daemon, sets the log output file to /var/log/torrus/monitor.TREENAME.log, performs one monitoring cycle, and sleeps until the next cycle is scheduled. In daemon mode the log file can be reopened by sending it a SIGHUP signal. OPTIONS
--nodaemon Prevents the process from becoming a daemon and sets the log to STDERR. --runonce Instructs the script to run once and exit. Implies --nodaemon. --delay=N Makes the daemon sleep for N minutes before starting the first cycle. This would happen on the daemon startup and also after each configuration recompilation. For example, when monitor and collector start simultaneously, the collector needs some time to retrieve the data being monitored. --debug Sets the log level to debug. --verbose Sets the debug level to info. --help Displays a help message. FILES
/etc/torrus/conf/torrus-siteconfig.pl Torrus site configuration script. /var/log/torrus/monitor.TREENAME.log Monitor's log for the tree TREENAME. SEE ALSO
torrus(8) NOTES
See more documentation at Torrus home page: http://torrus.org AUTHOR
Stanislav Sinyagin <ssinyagin@yahoo.com> torrus 2.03 2013-07-26 TORRUS_MONITOR(8)