General :: Remove A Certain Character From A Variable?
Jun 15, 2010I want to remove single quote from a variable. eg: Suppose I have a variable VAR='TEST' (including single quotes) How can I remove single quotes and make it TEST.
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Programming :: Remove The Last Character From Variable
Jun 22, 2010i have the following:
Quote:
echo %host%|sed "$s/.$//"
this would remove the Last character of the value assigned to the %host%. for example if my value is: abcd i get abc. but i am not able to assign the output. for example when i do
Quote:
set k=`echo %host%|sed "$s/.$//"`
after doing echo %k i get no output at the command prompt...!! whereas when i just type:
Quote:
echo abcd|sed "$s/.$//"
at the command prompt i get abc. maybe some other ways to Remove the Last character...?
General :: Special Character In String Variable And Grep
Apr 11, 2011I want to match some filename in some text, but the filenames I have no control of, so "[" can "]" can appear in the filenames.so do I always have to use sed to addslashes to these variables before I have to grep them? and what other characters have I missed other than "[", "]", "."?
View 4 Replies View RelatedGeneral :: Use The Man / Info / Apropos Pages - Character Instructed The Shell To Interpret A Special Character As An Ordinary Character?
Mar 27, 20101.What character instructd the shell to interpret a special character as an ordinary character?
2.What directory contains some of the utilities available on the system in the form of binary files?
3. What command is used to search the location of a utility?
4. What command is used to instruct the editor to write the file and quit the editor?
5. What key quits the more utility and displays the shell prompt?
6. What command starts a child shell as the super user, taking on root's identity and environment?
7. Which wildcard characters can be used for searching all the files in the system that start with "A"?
8. The user name or login name of the super user is????
[Code]....
General :: Remove Abnormal Character DEL From A File Name?
Jul 22, 2011I have got certain files which somehow contain abnormal character "Del" "0x7f" or 177 which represents Del. And this is causing SVN to reject these files and abruptly end the process. I need to remove those characters from the file names but am not able to. find or grep do not search the files. This is how the file looks like with ls or find code...
View 3 Replies View RelatedGeneral :: Shortcut To Remove First Character Of Multiple Lines In Gedit
Jan 23, 2010I 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.
General :: Remove Lines With Variable Value?
Jul 20, 2011I 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.
Programming :: Check If A Variable Holding A Character Is A Hyphen?
Mar 4, 2010I am having trouble with the code below, I'm trying to check if a variable holding a character is a hyphen.
Code:
#!/bin/bash
$char="-"
if (( "$char" == "-" )); then
[code]....
Programming :: How To Remove The Last Character
Jun 27, 2010I have a string like this "/home/test/filename.txt" and i want to delete all character after the last "/". how to do that using sed or awk.
View 5 Replies View RelatedProgramming :: Remove First And Last Character?
Feb 24, 2010which is the simplest way to have first and last character cropped out from a string? Something simpler than
Code:
echo $STRING | cut -b 2- | rev | cut -b 2- | rev
OpenSUSE :: Remove The Tab-like Character In Terminal?
Dec 8, 2010In my terminal , there's always a tab-like(a long space) between the "pswz-zhangy@linux-buym:~>" and the cursor, how can i get rid of if?
View 5 Replies View RelatedRed Hat / Fedora :: Change File Names To Remove Invalid Character
Apr 1, 2009I am trying to copy a large number of files from a Linux server to a Windows file share. Unfortunately, all of the files and folders I have to copy have 10 numbers followed by 2 colons "::" in the name (example: 1234567890::WordDoc.doc) which of course is invalid in windows naming conventions. So now I'm trying to come up with a way to change the file and folder names on the fly to replace the colons with a dash "-" or space " ". I'm even willing delete the frist 12 characters in necessary. I have tried cp, mv, tr, and several -bash scripts but get no positive results.
View 4 Replies View RelatedProgramming :: String Editing: Remove Lines Consisting Of A Single Character?
Jul 16, 2010I have a large text file that's formatted sort of like this:
Code:
foo bar
blah
[code]...
Programming :: Remove Characters From Within Variable
Feb 20, 2011I am doing a mysql query with a bash shell script like:
mysql translator -u root --password=******** -e "SELECT word FROM tagalog ORDER BY RAND() LIMIT 1" | while read line; do
echo $line
So when I echo the value of $line I get:
word
magandang umaga
"word" is the name of the row in the table and maganda umaga is a randomly selected choice from the row. Is there a way i can remove the name of the row from the variable $line. With a result that will allow me to echo $line and output only the randomly selected entry in from the row e.g. magandang umaga
General :: Assign Local Variable Values To Global Variable?
Feb 17, 2011how to assign a local variable value to a global variable....
View 2 Replies View RelatedProgramming :: Shell To Remove Line Matched With Variable?
Jul 25, 2011I'm using sed to remove certain line in a text file based on a match with 2 variables from input. Here is how it looks like in file
Philip S:Odds:45:343
Mike Junior:Odds:3:56
I prompt for 2 inputs in variable form which is compared to the first 2 fields of the above text (: seperated). So say i enter Philip S and Odds then it should delete the entire first line.
General :: Create An Environment Variable With The PRINTER Variable?
Apr 16, 2011I am supposed to create an environment variable with the PRINTER variable, which should resolve to the word sales. Would the command be like this?: env PRINTER - NAME=SALES (is this the command to create that variable with resolving the word sales to it?)
View 3 Replies View RelatedProgramming :: Remove Line Containing Certain Variable - Bash - Permission Denied?
Jul 20, 2011I am writing a bash script to run everyday and output results to a file. When the same results are produced i want to overwrite the line from the previous day. (Or remove and add). So if the script finds a variable in a line. i want it to output the results to that line . sed -i did not work for me; sed: couldn't open temporary file ./sedTvOCEg: Permission denied
View 10 Replies View RelatedProgramming :: Script To Remove Lines In A File With More Than "x" Instances Of Any Character ?
Oct 4, 2010I'm looking for a script (bash, python, perl etc) or even a one liner (sed, awk etc) that can take a set of files and remove any line that has more than "x" instances of any character (case sensitive). I have been doing a lot of searching and can only come up with examples of how to remove blank lines, lines that start with a certain character or lines that contain a certain string. This will be used on a system running a Kubuntu derivative.
As a very poor and basic example, I would like to take files that contain lines like:
Code:
And end up with the files only containing the lines:
Code:
If I tell the script that 2 is the maximun number of times any character can appear in any line.
I know this must be possible, but for the life of me I cannot find even an example that will lead me in the right direction or better yet a piece of code I can use.
Ubuntu Installation :: 10.10 - Remove Old Kernels From The Grub2 Boot Screen - Error "awk: 1: Unexpected Character 0xe2"
Nov 1, 2010I am running a dual boot system with windows 7 and Ubuntu. Both have run smoothly on my machine (Core 2 quad core on Gigabyte board) I recently upgraded to 10.10 from 10.04 via the update manager within 10.04. Following the upgrade the initial boot failed at the login screen ( i simply got the purple colored screen with a white box in the center of it). Instead of trying to figure out what went wrong, I simply re-installed 10.10 from live CD on top of the upgraded Ubuntu that was failing at the login screen. The live CD install seemed to fix everything for the most part ( I did notice some quickly flashing text right before the login screen. I think it was an error message but it was too fast to read)
My problem now is that I am trying to remove some of my old kernels from the Grub2 boot screen and I cant. I have read many posts on how to remove the old kernels, but my system is proving to be difficult. The old kernels definitely show during boot, but whenever I go into Synaptic they are not there. I have downloaded Ubuntu Tweak, and they do not show in it either. I have read the information at [URL] I went to http://www.fixthecode.com/remove-hug...sts-in-ubuntu/ and thought this would fix my problem but I keep getting an error: "awk: 1: unexpected character 0xe2" when i try to run: "dpkg -l | grep ^ii | grep 2.6.3x-xx | awk -F{print $2} I am running kernel 2.6.35-22 The kernels i want to remove are 2.6.32-23 and 2.6.32-24.
General :: Use The Value Of One Variable To Generate A Name For Another Variable?
Jul 25, 2010can i use the value of one variable to generate a name for another variable? for example i want to use the counter from a "do while" loop to name and define a variable each time the loop executes. for example
objectnames1=`ls -a`
objectnames2=`ls -a`
etc.
i don't have a script yet but each time through the loop i intend to cd to a particular directory and then define a variable containing a list of each object in that directory as values. for the rest of the script to work, each variable generated has to be unique, and i can't think of a good way to accomplish this.
if using a value from one variable to name another isn't possible, can anyone think of a more elegant solution? i know limited syntax but i'm willing to read up...
General :: Sed Substitution Of Variable With A Variable?
Dec 27, 2010I am trying to alter the character position of residue numbers above 999 in a pdb file.The following script is an attempt to:1) Get all unique pdb residue numbers (in column 5) using awk and assign it to a variable i.2) Loop through all the values in $i and if it is greater than 999, shift that number one character to the right using sed.However, the script only manages to alter the final residue numberCould anyone please advise how I can loop through all values in $i and shift it one character to the right?
#!/bin/bash
# Script to alter position of residue number in pdb file for resid above 999
i=$(awk '{print $5}' wt-test.pdb | uniq)
[code]...
Ubuntu :: Frozen Panel - Messing Around With The Alternate Character Panel App And Made A Custom Character Set
Jun 12, 2011I was messing around with the alternate character panel app and made a custom character set. I then wanted to put it on a new panel and created a new panel. I moved the character set to that panel, and then started to mess around with the panel settings (auto hide, show hide buttons, and expand, to be specific.) So far so good, until I moved the panel from the right side of the screen to the top. I already had a panel here, and it seemed not to like hiding a panel when there was already one on the top.
When the new panel hid itself, all my panels stopped responding (any clicks on them did nothing) and my processor started going at 100%. I tried a reboot and the only thing that changed is that now I can't even see my panels. I'm guessing I need to change the settings back manually through the prompt, but I don't know how to do that. I am using 10.04 and have not upgraded gnome since upgrading to 10.04.
Programming :: Bash - Read Content Of File To Variable And Use This Variable In For Loop ?
Aug 21, 2009I'm trying to read content of file to variable and use this variable in for loop. The problem is, when I have c++ comment style in file - /*. Spaces in line are also interpreted as separated lines.
For example:
Code:
Changing $files to "$files" eliminate these problems but causes that whole content of variable is treated as one string (one execution of loop).
Programming :: Make A New Variable With The String From The Old Variable Btut Without Any Plus Sign?
Apr 7, 2010my script has a variable which comes in the form +00.00 +0.00 -00.00 or -0.00 (the numbers can be any in that form) for any that have a + symbol I need to remove the +, but if it has a - symbol it needs to stay.
i need to make a new variable with the string from the old variable btut without any plus sign. I have tried a lot of different ways with no success, each thing I tried either left the + or removed the entire string. I think this should work but doesn't
foo=+12.40
bar=${foo#+}
Software :: Get Variable From Text File Into Bash Variable?
Jun 10, 2009I have a text file i that has a mailTo: NAME in it. In a bash script i need to extract NAME and put it in a $variable to use. How do i do this?
View 2 Replies View RelatedProgramming :: Search Within A Variable And Assign The Results To A New Variable?
Apr 25, 2011how I can search within a variable and assign the results to a new variable. I'll use the following as an example -
cars="Audi BMW Cadillac Chevy Dodge Ferrari Ford Mercedes"
list=`echo ${cars} | egrep -o '<A?+|<C+'`
with the echo command I get the following output assigned to list -
A
C
C
What I'd like to get for output is -
Audi
Cadillac
Chevy
how I could do this regardless of upper/lower case letters?
General :: VI And Vim And Set Default Character?
May 11, 20111,i access my server via secureCRT, when i typed the Code: vim in it, it shows Code: -bash: vim: command not found . how to install the vim? my linux version is centos.
2, when i typed some chinese characters in VI, it shows unnormal. maybe i should set the default character to UTF-8. but i don't know how to set it.
3,i want to copy a html file code to VI, how do i do?
4,how to create a file. like this? Code: mkdir filename ?how to rename the file, which i created by VI and had some contents in the file.
General :: Sed Add A Character To The End Of Each Line
Aug 5, 2010I am using the following command to add a comma to the end of each line in my file:
but for some reason the comma gets placed on a new line in between each line in the file. Why is this?
General :: Bind / Map Character To Alt+?
Dec 23, 2009In programming and various terminal programs (Screen, Vim) the [, ], { and } tends to be used a lot. I'm using a Norwegian keyboard where these are placed such that I have to stretch my fingers a bit too long for whats comfortable. To make it easier I though I'd try to make alt+[some key] be one of these characters. Is there a way that I can bind, say alt+� (Norwegian letter) to '{' system wide?Btw, is such thing called binding, mapping or something else? I'm getting a bit confused by the terms...
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