General :: Commands To Remove Particular Few Lines In History File?
Jun 16, 2010Is there any commands or scripts to remove only selected line in the history file.
View 1 RepliesIs there any commands or scripts to remove only selected line in the history file.
View 1 RepliesSuppose when I issue history command it is showing 100 entries with number attached to each command executed.
how to edit the history to remove few commands executed by me so as to protect the system from other users.
When i want to remove particular lines containing a specific word in from entire document at a time,i am using the following command.
awk '$columnno !~/specificword/' inputfile > outputfile
But here, coulmn no is my problem, because iam having this in different columns. So i need a solution for it.
How to write such removal command without mentioning column no. , ie irrespective of column no, it has to remove all lines having that specific word.
anyone has ideas how to remove lone lines from a text file?
If I have a file that is like this:
-----------------------------------
line 1
[code]...
Trying to remove lines from a syslog text file that have duplicate strings
Mar 10 06:51:11[http-8080-1] INFO com.MYCOMPANY.webservices.userservice.web.UserServiceController [u:2533274802474744|360] Authorize [platformI$tformIdAndOs=2533274802474744|360, userRegion=America|360]
then a few lines down
Mar 10 06:52:03 [http-8080-1] INFO com.MYCOMPANY.webservices.userservice.web.UserServiceController [u:2533274802474744|360] Authorize [platformI$tformIdAndOs=2533274802474744|360, userRegion=America|360
got the same thing in terms of a u: number but the issue is I need to remove duplicates and just leave one and the file has multiple duplicates of different u: numbers and it's 14,000 lines long. can anyone tell me if I can use awk? sed? or sort for something like this to? removing lines that have a certain string in there that's a duplicate.
i am working with linux security auditing project on my Servers.I want to find out all the commands executed by individual users.i think using last command,find out the login details.But how can find out the commands executed by each users on all logins except "history".?
View 2 Replies View RelatedIs it possible to use the keyboard in order to select some text in the terminal windows that is not in the currently edited line? (for example, in order to copy part of previous command output).
View 3 Replies View Relatedi want to delete some say 10 previous commands in bash shell!
View 3 Replies View RelatedI'm trying to come up with ideas for a simple way to strip a specific "entry" from a text file.I know tools like sed and perl can remove specific lines from a file but I haven't been able to come up with an elegant way to do my group of lines.In my file, the first "Location" line and the "SVNPath" line should be unique every time... but are they enough to strip out the whole set of the group plus the trailing one line of white space separating each group? Add to this, my file will grow as new entries are added (always appended to the end) but new entries will have the same formatting.
View 9 Replies View RelatedI am creating my own address book Python program and I want to create a nction that removes some specified entries. The code looks like this now.
Code:
def remove():
delentry= raw_input('Enter the entry name to delete: ')
[code]...
Contained within each of these 67 text files is about 1 million urls. Yes. I have 67 text files that contain 1 million lines of urls each. I am sure I am swimming in duplicates. I tried opening one text file and clicking sort ----->remove duplicates. Now Gedit is not responding my processor is maxed out to 100% and I think I am finally ready to delve into some command line code. Can anyone give me idiot proof instructions on how to sort the duplicates out of each one of these 67 text files? How about no duplicates across all 67?
View 7 Replies View RelatedI a csv-file (A.csv) with a total of 4.600.000 lines. Thats to many and only a few is necessary. I have a txt-file with 150 lines (X.txt) (all lines is dataset from a mainframe and looks like abc.def.123.456. How do I remove lines from A.csv where none of the dataset from x.txt is present?
View 13 Replies View Relatedi have a big file of random numbers i generated at some point in time, after working with it with different things(how fun that was)... i want to remove duplicate lines and i'm not sure i'm doing this right
heres the command
Code:
sort random.txt | uniq -u > rand-shorter.txt
the file is pretty big, everything on a new line. i found the command on a web site so i'm sure its correct(bit of a command line in linux newbie)
can anyone confirm if this will remove lines duplicate lines (keeping one copy) and dump what is left in a file named rand-shorter.txt?
EDIT: i think its actually working, just taking a reallllly long time (on an old pen 4 from 2000)
How do you remove parts of strings using python? Such as, if I have something like:
Code:
erme1 sdifskenklsd
erme2 sdfjksliel
[code]....
I have this massive table file with some data in it and I want to replace some lines that are wrong with the correct ones that are in another table file of the same format. The wrong lines are not all together in a block but randomly distributed so I need to make a loop checking if the line is in the other file and if it is, replace it. I want to try and do it with sed or awk but I don't really know how to....
View 12 Replies View RelatedI have a large file and need to remove all the lines containing symbol/symbols.
For example: . , ! " # $ % & / ( ) = ? � � ' � + * � { } ] [ - _ : ; , > < (maybe more)
I have a file that looks like this:
1
2 3 4 5 6 7 8 9
10 11 12 13 14 15
16 17 18 19 20 21
22 23 24
1
2 3 4 5 6 7 8 9
10 11 12 13 14 15
16 17 18 19 20 21
22 23 24
1
2 3 4 5 6 7 8 9
10 11 12 13 14 15
16 17 18 19 20 21
22 23 24
...
I would like to reformat it to look like this:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
...
Is there a nifty awk/sed one-liner to do this operation?
I have a text file called file1.txt containing many lines eg.
line1
line2
line3
line4
line5
line6
Then i have another text file called file2.txt contains
3
5
6
Is there a command to remove the lines in file1.txt based on the keywords in file2.txt? note: It should remove line3,line5,line6 based on 3,5,6
I need to do some text file manipulation which I think should be done with standard commands in BASH. I'm looking at comma seperated text files (stock market data). It comes in the form of date, stock code, open, high, low, close, volume. What I need to do first is move all data with same stock code sequentially into individual files.
While doing this since the stock code will now be the file name I need to remove the stock code. Next I need to filter out overlapping data from different files with the same date. ie. where two files contain the same date on the one line only one line will be added to the combined file. I think there must be a tutorial out there for basic text manipulation like this, I just haven't found it yet.
I need to filter the log from a massive wget. I want to remove the progress lines and only leave the last one. Now each progress line starts with a newline '
View 2 Replies View RelatedI have a data set that takes the form...
0.0 43
12572.9102 80.8521 263.3575 0.0200 12.6358 -86.4942
4.3870e-06 -0.3547
[code]....
I have model output data in ascii format. It contains thousands of lines. The output file contains multiple text lines with variable values. here I copy-paste some of it's contents.
Code:
73438 170 23:53:20 3.481328E-03 1.824611E+04 1.824612E+04 1.333962E+16
73439 170 23:56:40 3.481210E-03 1.824611E+04 1.824612E+04 1.333962E+16
73440 171 00:00:00 3.481093E-03 1.824611E+04 1.824612E+04 1.333962E+16
[code]....
i want to remove the lines starting by WRT and DEF.
I would like to know how to remove X lines from output. i have a test file and i want the output without the first 2 lines
[root@node1 ~]# cat test
1
2
3
[code]....
I have a file that contains lines representing the nodes of a polyline but I only need the first point in each segment. With the following text:
0,"013A",0.57,260739.891,4379258.87
0,"013A",0.57,260737.674,4379258.94
0,"013A",0.57,260684.628,4379258.35
1,"013A",0.545,260769.915,4379257.84
1,"013A",0.545,260739.891,4379258.87
[Code]....
The problem with uniq is that the last two colums will differ. I don't care about the x/y for any points following the first one.
Having recovered from busting my installation, feel urgent need to know what I did to set it up.So...would like to see all commands I ran in terminal window and store them (execute as script in future?)I can see prior commands using up arrow, is there a way of storing all of those commands in history?Also, any pointers to setting up sort of backup of the package installation setup?
View 7 Replies View RelatedI have a txt file with couple of comment lines:
Number of title = !num!
#line1
#line2
#line3
I wrote a script with "sed" to replace !num! in this file, which is very straightforward. However, based on the !num!, I want to remove the number of "#" based on the !num! value. Is there an easy way to do that with "sed"; otherwise, i will have to write a script to loop through the file.
If I interactively ssh to a remote host and enter commands, I can up-arrow through the command history.If a script ssh's to a remote host and calls a command, it does not get appended to the history.How can I configure ssh or sshd so that this happens? I'd like to be able to have those scripted commands available in the history file when I log back in interactively.
View 2 Replies View RelatedI would like to remove rsh, rcp, rlogin from my production server.
How would i go about it?
Should i remove them from their original location using rm?
Will that impact on any other functionality?
I have a text file that each contains either a domain or an IP, like this:
Code:
[me@server ~]# cat file1
122.foo.com
yahoo.com
23345229.com
[code]....
I want to remove all IPs in that file and keep others, so the result be like:
Code:
[me@server ~]# cat file2
122.foo.com
yahoo.com
23345229.com
[code]....
I want to be able to remove the first character of a line when I highlight multiple lines in gedit. Example:
%Example is
%Commented Code
%Uncomment using this shortcut
I would then highlight/select these lines, and remove the first character to make it look like this:
Example is
Commented Code
Uncomment using this shortcut
I'm pretty sure there is an actual shortcut for this. If there is another text editor on Linux that it would work in, it would be nice to know how to do it in that editor as well.