Questions tagged [whitespace]
combination of spaces, tabs, or newlines which create "empty" space in a line or column
0
votes
2answers
53 views
Remove new line, space from file
I have many files in a directory each like so:
AAA
AA
AAAAAA
A
AAAA
I want to end up with this:
AAAAAAAAAAAAAAAA
So that when I run:
find ./ -name '*' -exec wc -m {} +
I get back 16, not 20+ ...
0
votes
1answer
18 views
Replacing tabs with spaces from nth column to last column
I have a tab-separated file which looks as follows:
GCF_000014165.1_ASM1416v1.dist_nbr_anntn WP_011558474.1 1155234 1156286 44173 polyketide synthase [Mycobacterium]
GCF_000014165....
12
votes
3answers
2k views
What difference does it make matching a word with/without a trailing whitespace?
I am learning shell-scripting and for that I am using HackerRank. There is a question related to sed on the same site: 'Sed' command #1:
For each line in a given input file, transform the first ...
0
votes
4answers
66 views
Grep a file which has spaces on it by expanding a variable
I have a find result saved in a variable and I am protecting the spaces in filenames by adding a single quotes around the output. So the for loop works flawlessly.
My problem is when I intend to ...
0
votes
1answer
30 views
output of watch several commands not clear
I am restoring a database backup on my server and i need to watch output of df -h and restore utility db2pd -utilities. I tried this:
watch -n 2 "db2pd -utilities && df -h
output(summarized): ...
1
vote
2answers
66 views
How to sort a file with multiple delimiters?
Listing the available patches in openSUSE results in the following output.
The command that results int the details below is zypper patches. The same result is also displayed when running the ...
0
votes
1answer
37 views
automatically repair rsnapshot config: replace spaces with tabs
rsnapshot is quite picky in its config: the commands have to be separated by TABs and not spaces.
if you use
rsnapshot configtest
you see the errors, but how can I automatically repair the errors ...
8
votes
3answers
1k views
How to print strings separated by TAB in bash?
I am trying to print two string separated by a TAB.
I have tried:
echo -e 'foo\tbar'
printf '%s\t%s\n' foo bar
Both of them print:
foo bar
Where the whitespace between the two is actually 5 ...
0
votes
2answers
100 views
Gnu Sed: Space Character class not matching for end of line character
Pattern: abc followed by space or is the last character in a line.
orig="abc[[:space:]]+";
new=Hello
sed -i -r -e "s|${orig}|${new}|g" ./file ;
File:
abc
abcd
abc
abc d
After executing:
abc
abcd
...
0
votes
2answers
155 views
bash: convert array into string preserving white spaces
I am just trying to convert an array into string, while preserving the white spaces. This is what I have:
INPUT=$1
readarray -t arr < <(grep -o . <<< "$INPUT")
echo "${arr[*]}"
I ...
-1
votes
2answers
59 views
How to trim the spaces from first and last of the variable string in Linux? [closed]
I am trying to remove white spaces from each variable string. I tried with below command but no use.
a="HARISH , SAM"
echo $a|sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//'
0
votes
1answer
35 views
sed alters windows line endings unintentionally. How can I avoid that?
I am developing in linux a portable application, in which I wanted to remove trailing spaces from some source files, which have windows style line endings. The line endings should not be changed to ...
0
votes
2answers
376 views
sed: remove extra whitespace to single whitespace between strings while leaving leading tabs intact
I have a code:
1 /**
2 a b c
3 **/
4 int main() {
5 int x;
6 if ( condition) {
7 return x;
8 }
9 }
I need to change multiple whitespaces between ...
0
votes
3answers
79 views
Unix command to remove space from a file name
I have a file whose file name has a space like First Name_20180810.csv. The date (20180810 in the above example) changes daily in the filename.
How can I rename First Name_*.csv to be FirstName_*.csv?...
6
votes
1answer
470 views
How to compile Linux kernel modules within white-space-separated directories under the following makefile?
I was trying to compile a kernel module source code, until I noticed that some whitespaces where causing mismatched path names. The directory under which I found myself was:
axor@vacuum:~/software/CS ...
1
vote
1answer
94 views
Bash script Issue parsing text in line with whitespace characters
I have a list of commands to parse through for an audit, similar to this:
1. -a *policy name=PolicyName -a *policy workflow name=PolicyWorkflow -a *policy action name=PolicyAction -s Server -b ...
1
vote
3answers
194 views
How to left pad a column in Bash
I have a bash script that prints the following results:
120,900
1160,001
80,730
600,165
6,310
1111,203
I would like to left pad that so the result will be:
120,900
1160,001
80,730
600,165
6,...
1
vote
1answer
129 views
Bash script read a string with whitespace [duplicate]
I am trying to write a quick bash script to automatically git push to multiple branches at once. My issue is, when I enter my commit message as a read variable, bash and git freak out at the use of ...
0
votes
1answer
2k views
Using string with whitespace in the subprocess.call function in python
I am trying to use ssh command in the subprocess.call function of Python 2.6.8 on Unix environment to call a remote script, and I need to provide a string parameter (with whitespaces) to the remote ...
2
votes
6answers
2k views
How can I trim the contents of a text file?
I want to remove all "blank" characters from the very beginning and the very end of a text file, including \n if exists. (basically mimicking the behaviour of trim() function of most programming ...
1
vote
2answers
151 views
Replace a specific line keeping identation
I have a file that has indentation.
I want to replace a specific line but keep the indentation.
The file has a line such as
\t\t customerId = "123" // has indentation in the start of line
I ...
0
votes
2answers
1k views
Correct way to match a leading space with sed (all of them)?
How to match a leading space with sed (all of them)? I'm not talking about leading tabs, but rather only on leading spaces.
From a small test I did in Nano this seems to be correct:
sed "s/^ //g"
...
2
votes
1answer
3k views
Binary operator expected - quoting question for shell script args
I have a question on how I'm adding arguments when executing a shell script.
I have a simple script which helps me block ip ranges:
~/block_ip.sh:
if [ ! $3 ]
then
echo "usage ~/block_ip.sh (DROP/...
2
votes
4answers
117 views
Ignore spacing between echo strings
I use echo to print two strings into a file in either of these two commands:
echo -e "\n""x" >> ~/file
echo -e "\n" "x" >> ~/file
The first result is:
x
The second result is:
x
I ...
0
votes
1answer
49 views
script parameter containing spaces invoking mediainfo
I'd like to create a small shell script that will tell me the duration of a video whose file name is passed to it as a parameter. It'd be something like this:
$ script_name "file name with spaces....
2
votes
1answer
76 views
Differences in whitespaces between bash script and interactive shell
Please advice why this happens.
from a Linux bash shell:
ps
PID TTY TIME CMD
20406 pts/0 00:00:01 bash
26896 pts/0 00:00:00 ps
I run the follwing
str="a b c d"
printf "%s\n" ` echo ...
2
votes
1answer
160 views
Remove whitespace only between two characters { and } in file [duplicate]
I have file with json values :
abc={"adf": "def", "abc2":"def2", "abc3" : "def3" }
abc4= 1
abc = {hello : world, hello:"a"}
I want to remove whitespace from everywhere in between
{ and } and not ...
3
votes
1answer
947 views
how to get less to show tabs as tabs?
When I view data with tabs in less, tab characters are expanded to spaces. If I then copy them directly out of my terminal using ctrl-c, they copy as spaces. On the other hand, more preserves tab ...
2
votes
0answers
213 views
How to open a file in MonoDevelop with spaces in the path?
I have installed MonoDevelop using the instructions here on my PC running Arch Linux.
I can successfully launch the MonoDevelop IDE using the command:
flatpak run com.xamarin.MonoDevelop
I can also ...
1
vote
1answer
857 views
How to display trailing whitespaces in the text file?
I'd like to be able to print and see the trailing whitespaces in the text file (just display, not remove).
I've tried with cat -v which suppose to display non-printing characters, but it doesn't ...
2
votes
1answer
200 views
Cut delimited with unescaped space?
I have a file with text in the format of:
User\ Name My\ Password
Notice this is actually a 2 column file, where columns contain escaped spaces.
cut -d' ' -f2 produces Name but I want to produce My ...
1
vote
3answers
391 views
Print only certain columns while maintaining white space
I have some code that prints select columns from the output of lsblk. However, the spacing in the result makes it hard to read. Is there anyway to do this while maintaining the white space?
echo "`...
6
votes
5answers
3k views
Replace any number of tabs and spaces with single new line in Linux? [closed]
I have a very large word list that has been damaged, maybe by improper vim exit or memory exhaustion?
Everything in my word list should be left-justified. But now it is like this:
Cat ...
0
votes
1answer
206 views
Any way to change the tab size of the diff command's output?
I'm on OSX and running a diff command like this, to create side-by-side output:
$] diff -Bbwy --width=200 --suppress-common-lines file1.txt file2.txt > diff-output.txt
It outputs my diffs just ...
2
votes
1answer
309 views
Quoting a path that contains spaces, in FreeBSD - why doesn't it always work?
I have a directory on my FreeBSD server whose contents are created by Windows users over Samba. The filenames and paths within it sometimes contain spaces, as is common in the Windows world.
I just ...
2
votes
1answer
2k views
Passing arguments with spaces and quotes to a script (without quoting everything)
The following works great on the command-line:
$ ffmpeg -i input.m4a -metadata 'title=Spaces and $pecial char'\''s' output.m4a
How do I parameterize this command and use it in a script/function? I ...
1
vote
1answer
71 views
Passing paths and filenames to a program from bash script
I use a utility called mp3wrap which combines multiple mp3s into one. Say I have a directory "album 1" containing three files "track 1.mp3", "track 2.mp3" and "track 3.mp3". I will run the following:
...
13
votes
4answers
1k views
bash: whitespace-safe procedural use of find into select
Given these file names:
$ ls -1
file
file name
otherfile
bash itself does perfectly fine with embedded whitespace:
$ for file in *; do echo "$file"; done
file
file name
otherfile
$ select file in *;...
3
votes
1answer
269 views
Zsh preexec - How to trim all leading indentations from a codeblock?
Say I copy the following codeblock from a .md handbook which incldes some information and a few codeblocks (hence it's not a script file):
⇨⇨⇨⇨(
⇨⇨⇨⇨Indented commands...
⇨⇨⇨⇨)
The Zsh preexec ...
3
votes
1answer
3k views
Posix Character Sets difference between [[:blank:]] and [[:space:]]?
On this website it says:
[[:blank:]] space and tab characters
[[:space:]] whitespace characters
What's the difference between space and tab characters and whitespace characters? To me, they ...
1
vote
1answer
75 views
Can I force column to emit whitespaces instead of tabs?
I'd like to tabularize a file with the column command:
$ column -c 60 file.txt
The output is nice on the screen, but unusable for my purposes because the items are seperated by tabs. for further ...
5
votes
1answer
796 views
Replace each tab ONLY at the beginning of each line with spaces
So replacing all tabs in a file with spaces is not hard.
In vim for example, I can do %s/\t/ /gc
And if I want to replace the ones at the beginning of each line, not the one in the middle I can ...
0
votes
0answers
30 views
Passing filenames with space between scripts [duplicate]
I've got a script that processes filenames given as parameters on the command line.
This is a stripped down version to demonstrate the processing:
#!/bin/bash
# Just a test to see if parameter ...
1
vote
1answer
442 views
Git Server: ignore whitespace changes in new commits
I found a lot of ways to deal with the whitespace problem in Git, but all of them require some sort of action on the user side: configure Git to ignore ws changes, setup a pre-commit hook with warning,...
3
votes
1answer
120 views
Wordsplitting occurring in quoted variable
I'm trying to create a dialog menu based on the results of the lsblk command. My goal is to read the first word as the menu item and the remaining words as the menu item description.
For example:
...
1
vote
2answers
317 views
Entering a folder with whitespaces and escape characters using bash
I have access to a list of folders that have a format like
lastname, firstname(id)
When I try to enter the folder from the terminal, it looks like
cd test/lastname,\ firstname\(id\)
I am not sure ...
4
votes
2answers
265 views
Maintain filenames as separate arguments in successive commands
A disclaimer: This isn't related to one specific command like ls or grep, although I use them in the examples, this is more a bash thing.
Let's say I want to see the file sizes, timestamps, and ...
0
votes
3answers
1k views
Removing space at the beginning of the variable data
I would like to ask if how can I remove the space in the beginning of the stored data of the variable.
I had an auto-generated script that will get MySQL COUNT from the DB.
MYSQL COUNT SCRIPT-> .ini ...
-1
votes
1answer
121 views
Read file and write output in another file using shell script
My input file is:
Employee
e_id e_name
100 abc
101 xyz
102 pqr
Salary
e_id e_salary
100 12345
101 67890
Dependents
e_id depp1 depp2
100 qwer tyui
102 asdf ghjkl
I want the output line by line as ...
10
votes
4answers
2k views
Why does cut fail with bash and not zsh?
I create a file with tab-delimited fields.
echo foo$'\t'bar$'\t'baz$'\n'foo$'\t'bar$'\t'baz > input
I have the following script named zsh.sh
#!/usr/bin/env zsh
while read line; do
<<&...
