How do I remove all spaces in bash?

How do I remove all spaces in bash?

You can use the following bash commands to delete and trim whitespace form strings or text: sed command. awk command. cut command.

How do I remove spaces from a Unix file?

Simple solution is by using grep (GNU or BSD) command as below.

1. Remove blank lines (not including lines with spaces). grep . file.txt.
2. Remove completely blank lines (including lines with spaces). grep “\S” file.txt.

How do you remove spaces in a text file?

Press Shift + Alt then press the down button before “56”. Then backspace . You will see the cursor becomes big and then you can remove the spaces all at once.

How do I remove spaces between words in shell script?

When insisting on sed

1. sed ‘s/ //g’ input. txt > no-spaces. txt.
2. sed ‘s/[[:blank:]]//g’ input. txt > no-spaces. txt.
3. sed ‘s/[[:space:]]//g’ input. txt > no-spaces. txt.

How do I remove spaces in Linux?

s/[[:space:]]//g; – as before, the s command removes all whitespace from the text in the current pattern space.

How do I get rid of white spaces?

The replaceAll() method of the String class replaces each substring of this string that matches the given regular expression with the given replacement. You can remove white spaces from a string by replacing ” ” with “”.

How do I delete multiple spaces in Unix?

To remove multiple spaces use [ ]+ in sed. [ ]+ means match more than one space. Let do same example by inserting more spacing in words.

How do I remove spaces from every line in Linux?

sed tip: Remove / Delete All Leading Blank Spaces / Tabs ( whitespace ) From Each Line

1. s/ : Substitute command ~ replacement for pattern (^[ \t]*) on each addressed line.
2. ^[ \t]* : Search pattern ( ^ – start of the line; [ \t]* match one or more blank spaces including tab)
3. // : Replace (delete) all matched pattern.

How do I remove all spaces?

Remove all spaces between numbers

1. Press Ctrl + Space to select all cells in a column.
2. Press Ctrl + H to open the “Find & Replace” dialog box.
3. Press Space bar in the Find What field and make sure the “Replace with” field is empty.
4. Click on the “Replace all” button, and then press Ok. Voila! All spaces are removed.

How do I remove extra spaces from a CSV file in Unix?

2 Answers

1. The assumption here is that commas are illegal within the fields (i.e “test, 123” is illegal).
2. As you requested, this removes whitespaces only before commas. if you want to remove whitespaces which are after commas as well: sed ‘s/ *, */,/’ csv-file.

How do I trim in bash?

${var/ /} removes the first space character. ${var// /} removes all space characters. There’s no way to trim just leading and trailing whitespace with only this construct. Bash “patterns” are regular expressions, only with a different syntax than “POSIX (extended) regular expressions”.

How do I delete a whitespace character?

Remove whitespace characters using split() method Instead of traversing each character of the input string, we can use the split() and the join() method to remove the whitespaces. The split() method, when invoked on a string, splits the string at whitespaces and returns a list of the substrings.

How do I remove extra spaces from a CSV file?

Workaround:

1. Open csv file in Microsoft® Excel.
2. Select the Tag column.
3. Select Edit > Replace then select the Options button.
4. Select the Search drop down and select By Columns.
5. In the Find what field input a space and leave the Replace with field blank.
6. Select Replace All.

How do you remove trailing spaces in Linux?

How to remove the leading and trailing spaces in a file?

1. awk command: $ awk ‘$1=$1’ file Linux 25 Fedora 40 Suse 36 CentOS 50 LinuxMint 15.
2. sed command: $ sed ‘s/^ *//;s/ *$//;s/ */ /;’ file Linux 25 Fedora 40 Suse 36 CentOS 50 LinuxMint 15.
3. Perl solution:
4. Bash solution:

How do I cut a space in Linux?

-c (column): To cut by character use the -c option. This can be a list of numbers separated comma or a range of numbers separated by hyphen(-). Tabs and backspaces are treated as a character. It is necessary to specify list of character numbers otherwise it gives error with this option.

How do I remove spaces between words in Linux?

To remove multiple spaces use [ ]+ in sed. [ ]+ means match more than one space. Let do same example by inserting more spacing in words. Note we need to escape special character + with back slash while [ ]+ in sed.

How do I remove white space in bash?

Use sed ‘s/^ *//g’, to remove the leading white spaces. There is another way to remove whitespaces using `sed` command. The following commands removed the spaces from the variable, $Var by using `sed` command and [[:space:]].

Do CSV files have spaces?

You can put quotes, dashes and spaces in the CSV file. Fields that contain a special character (comma, newline, or double quote), must be enclosed in double quotes.

How do I remove extra spaces from a csv file in Python?

Create a class based on csv. DictReader , and override the fieldnames property to strip out the whitespace from each field name (aka column header, aka dictionary key).

How do you trim a space in a Unix variable?

How to copy or delete files with spaces in their name?

The following command is required to copy or delete files with spaces in their name, for example: $ cp “my resume.doc” /secure/location/ $ rm “my resume.doc”. The quotes also prevent the many special characters interpreted by your shell, for example: $ rm -v “>file” removed `>file’.

How to delete all whitespace in a text file?

In order to wipe all whitespace including newlines you can try: cat file.txt | tr -d ” ” You can also use the character classes defined by tr (credits to htompkinscomment): cat file.txt | tr -d “[:space:]” For example, in order to wipe just horizontal white space: cat file.txt | tr -d “[:blank:]” Share Improve this answer

Why can’t I delete a file in the default Bash shell?

Your default bash shell considers many of these special characters (also known as meta-characters) as commands. If you try to delete or move/copy such files you may end up with errors. In this example, I am trying to delete a file named ‘>file’: rm: missing operand Try `rm –help’ for more information.

What to do if rm command fails to delete a file?

rm: missing operand Try `rm –help’ for more information. The rm command failed to delete the file due to strange character in filename. The following command is required to copy or delete files with spaces in their name, for example: The quotes also prevent the many special characters interpreted by your shell, for example: