How do I remove a UNIX starting space?

How do I remove a UNIX starting space?

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:]].

How do I remove leading and trailing space in Unix?

sed command: The 1st command removes the leading spaces, the second removes the trailing spaces and the last replaces a group of spaces with a single space. The source file itself can be updated by using the -i option of sed.

How do I get rid of extra spaces in Linux?

You can enable shopt -s extglob and then just use NEWHEAD=${NEWHAED/+( )/ } to remove internal spaces.

How do you trim a space in a Unix variable?

${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 you remove leading space in sed?

Remove all leading whitespace

1. To remove all tab whitespace (This will not remove empty space) # sed ‘s/^[ ]*//g’ /tmp/file. This is line one.
2. To remove all leading whitespaces (including tabs) # sed ‘s/^[t ]*//g’ /tmp/file. This is line one.
3. # sed ‘s/^[t ]*//g;s/[t ]*$//g’ /tmp/file.
4. This is line one. This is line two.

How do you remove spaces at the end of a line in UNIX?

How do I remove blank spaces from a CSV file?

Steps to automatically remove spaces in the CSV file:

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.