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Shell Programming and Scripting
Removing consecutive lines in a file
Post 302562304 by vgersh99 on Thursday 6th of October 2011 01:14:38 PM
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10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi,
I have this problem of separating 10 consecutive lines from a file, say starting from 21 to 30... I have used a filter like this..
head -n 30 myfile | tail -n 10
Is there a simpler way than this? (2 Replies)
Discussion started by: Vishnu
2 Replies
2. Shell Programming and Scripting
Hi ,
I'm looking for a way to merge two lines only for a given pattern / condition.
Input :
abcd/dad + -49.201 2.09 -49.5 34 ewrew rewtre *
fdsgfds/dsgf/sdfdsfasdd +
-4.30 0.62 -49.5 45 sdfdsf cvbbv *
sdfds/retret/asdsaddsa +
... (1 Reply)
Discussion started by: novice_man
1 Replies
3. Shell Programming and Scripting
Hello
I have a file in following format:
IV 08:09:07
NM 08:12:01
IC 08:12:00
MN 08:14:20
NM 08:14:15
I need a script to compare time on each line with previous line and show the inconsecutive line. Ex.:
08:12:00
08:14:15
A better way... (6 Replies)
Discussion started by: vilibit
6 Replies
4. Shell Programming and Scripting
Hi guys
I am deleting a unique line from the file and also need to remove the line above it which is NOT unique and servers as a record separator. Here is an example:
#
101 803E 823F 8240
#
102 755f 4F2A 4F2B
#
290 747D 0926 0927
#
999 8123 813E ... (5 Replies)
Discussion started by: aoussenko
5 Replies
5. Shell Programming and Scripting
Mysql log has something like below:
I need a bash shell script that will do the following:
1) The script will scan the mysql.log file constantly in real time (something like tail -F mysql.log)
2) If it encounters 5 consecutive identical lines then it would invoke some commands (say... (4 Replies)
Discussion started by: proactiveaditya
4 Replies
6. Shell Programming and Scripting
I would like to compare the values of 2nd column of consecutive lines of same file in such a way so that if the difference between first value and second value is more than 100 it should print complete line else ignore line.
Input File
==========
PDB 2500
RTDB 123
RTDB-EAGLE 122
VSCCP 2565... (4 Replies)
Discussion started by: manuswami
4 Replies
7. UNIX for Dummies Questions & Answers
I have a text file that is about 90,000 lines long. How would I delete lines 64-89, 152-177, 240-265, 328-353... etc? The sections I would like to delete are 26 lines long and the number of lines between the sections I would like to delete is 62 lines. Thanks very much in advance. (6 Replies)
Discussion started by: MDeBiasse
6 Replies
8. Shell Programming and Scripting
I have a file lake this
cat ex1.txt
</DISCOUNTS>
<B2B_SPECIFICATION elem="0">
<B2B_SPECIFICATION elem="0">
<DESCR>Netti 2 </DESCR>
<NUMBER>D02021507505</NUMBER>
</B2B_SPECIFICATION>
<B2B_SPECIFICATION elem="1">
<DESCR>Puhepaketti</DESCR>... (2 Replies)
Discussion started by: Dhoni
2 Replies
9. Shell Programming and Scripting
Hi
I need to remove three consecutive lines of code which appear multiple times during a script. Two of the lines also appear in other parts of the scripts and need to stay so I can't strip out the code per se - It needs to be the exact three lines. Hope that makes sense !
Any help much... (5 Replies)
Discussion started by: Grueben
5 Replies
10. Shell Programming and Scripting
Hi
I have a text file like below. THe content of the text will vary.
Entire text file have four consecutive lines followed with blank line.
I want to delete the occurrence of the two consicutive lines in the text file. I don't have pattern to match and delete. Just i need to delete all... (5 Replies)
Discussion started by: RJSKR28
5 Replies
LEARN ABOUT FREEBSD
ucblinks
ucblinks(1B) SunOS/BSD Compatibility Package Commands ucblinks(1B) NAME
ucblinks - adds /dev entries to give SunOS 4.x compatible names to SunOS 5.x devices SYNOPSIS
/usr/ucb/ucblinks [-e rulebase] [-r rootdir] DESCRIPTION
ucblinks creates symbolic links under the /dev directory for devices whose SunOS 5.x names differ from their SunOS 4.x names. Where possi- ble, these symbolic links point to the device's SunOS 5.x name rather than to the actual /devices entry. ucblinks does not remove unneeded compatibility links; these must be removed by hand. ucblinks should be called each time the system is reconfiguration-booted, after any new SunOS 5.x links that are needed have been created, since the reconfiguration may have resulted in more compatibility names being needed. In releases prior to SunOS 5.4, ucblinks used a nawk rule-base to construct the SunOS 4.x compatible names. ucblinks no longer uses nawk for the default operation, although nawk rule-bases can still be specifed with the -e option. The nawk rule-base equivalent to the SunOS 5.4 default operation can be found in /usr/ucblib/ucblinks.awk. OPTIONS
-e rulebase Specify rulebase as the file containing nawk(1) pattern-action statements. -r rootdir Specify rootdir as the directory under which dev and devices will be found, rather than the standard root directory /. FILES
/usr/ucblib/ucblinks.awk sample rule-base for compatibility links ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWscpu | +-----------------------------+-----------------------------+ SEE ALSO
devlinks(1M), disks(1M), ports(1M), tapes(1M), attributes(5) SunOS 5.10 13 Apr 1994 ucblinks(1B)