delete blank lines with sed Post: 87981

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

delete blank lines or lines with spaces only

hi there i'm trying to delete blank lines and or lines with spaces only from a series of files in an directory. to do so, i'm using this: for files in `ls /users/myname/pesop* 2>/dev/null` do grep -v ^$ $files > newfile mv newfile $files done now, this works great for blank lines but...

2. UNIX for Dummies Questions & Answers

delete blank lines from a file

can anyone show me how to delete blank lines from a file. thanks in advance

3. UNIX for Dummies Questions & Answers

delete traling blank lines only

Hi, I have blank line in the file, I just want to remove trailing blank lines. There are some blank lines between the lines, i don't want remove those. Just want to delete blank lines at the end. I used this command sed '/^$/d' infile > outfile, but it is not removing anything. I think...

4. Shell Programming and Scripting

Why cant i delete blank lines?

I have a sed pipeline: myVar=$(cat $FILE | sed -n '/regex/,/regex/{/regex/d;p}' | sed -n '/regex/!p' | sed -e s/*:// | sed /regex/,+8d \ ) sed '/^$/d' sed '/./!d' And i've tried to add that in a different order rather then just on the end..Why isnt it deleting all the blank...

5. Shell Programming and Scripting

Delete blank lines, if blank lines are more than one using shell

Hi, Consider a file named "testfile" The contents of file are as below first line added for test second line added for test third line added for test fourth line added for test fifth line added for test

6. Shell Programming and Scripting

Sed delete blank lines upto first pattern match

Hi Im trying to do the following in sed. I want to delete any blank line at the start of a file until it matches a pattern and then stops. for example: Input output: I have got it to work within a range of two patterns with the following: sed '/1/,/pattern/{/^]*$/d}' The...

7. Shell Programming and Scripting

Delete blank lines in a file

Hi All, I have a file and I need to delete the lines that are blank and is starting with some characters below. Something like below: Regular Ascii File: Line1: AGODA1 BUSAN||SK Lord Beach 4/6/2012 4/7/2012 68060 Line2: AGODA2 BUSAN||SK Beach Hotel 4/6/2012 4/7/2012 610200 Line3: ...

8. UNIX for Advanced & Expert Users

Delete blank spaces and blank lines in a file

Hi Gurus, Somebody can say me how to delete blank spaces and blank lines in a file unix, please. Thank you for advanced.

9. Shell Programming and Scripting

sed one liner to Delete blank lines - Help required

Hi, cat test.txt BlankLine BlankLine BlankLine BlankLine ello hi helo BlankLine BlankLine heylo BlankLine BlankLine BlankLine done BlankLine BlankLine BlankLine

10. UNIX for Beginners Questions & Answers

Delete multiple lines between blank lines containing two patterns

Hi all, I'm looking for a way (sed or awk) to delete multiple lines between blank lines containing two patterns ex: user: alpha parameter_1 = 15 parameter_2 = 1 parameter_3 = 0 user: alpha parameter_1 = 15 parameter_2 = 1 parameter_3 = 0 user: alpha parameter_1 = 16...

LEARN ABOUT DEBIAN

shtool-subst

SHTOOL-SUBST.TMP(1)					      GNU Portable Shell Tool					       SHTOOL-SUBST.TMP(1)

NAME

       shtool-subst - GNU shtool sed(1) substitution operations

SYNOPSIS

       shtool subst [-v|--verbose] [-t|--trace] [-n|--nop] [-w|--warning] [-q|--quiet] [-s|--stealth] [-i|--interactive] [-b|--backup ext]
       [-e|--exec cmd] [-f|--file cmd-file] [file] [file ...]

DESCRIPTION

       This command applies one or more sed(1) substitution operations to stdin or any number of files.

OPTIONS

       The following command line options are available.

       -v, --verbose
	   Display some processing information.

       -t, --trace
	   Enable the output of the essential shell commands which are executed.

       -n, --nop
	   No operation mode. Actual execution of the essential shell commands which would be executed is suppressed.

       -w, --warning
	   Show warning on substitution operation resulting in no content change on every file. The default is to show a warning on substitution
	   operations resulted in no content change on all files.

       -q, --quiet
	   Suppress warning on substitution operation resulting in no content change.

       -s, --stealth
	   Stealth operation. Preserve timestamp on file.

       -i, --interactive
	   Enter interactive mode where the user has to approve each operation.

       -b, --backup ext
	   Preserve backup of original file using file name extension ext.  Default is to overwrite the original file.

       -e, --exec cmd
	   Specify sed(1) command directly.

       -f, --file cmd-file
	   Read sed(1) command from file.

EXAMPLE

	#   shell script
	shtool subst -i -e 's;(c) ([0-9]*)-2000;(c) 1-2001;' *.[ch]

	#    RPM spec-file
	%install
	    shtool subst -v -n 
		-e 's;^(prefix=).*;1 $RPM_BUILD_ROOT%{_prefix};g' 
		-e 's;^(sysconfdir=).*;1 $RPM_BUILD_ROOT%{_prefix}/etc;g' 
		`find . -name Makefile -print`
	    make install

HISTORY

       The GNU shtool subst command was originally written by Ralf S.  Engelschall <rse@engelschall.com> in 2001 for GNU shtool.  It was prompted
       by the need to have a uniform and convenient patching frontend to sed(1) operations in the OpenPKG package specifications.

SEE ALSO

       shtool(1), sed(1).

18-Jul-2008							   shtool 2.0.8 					       SHTOOL-SUBST.TMP(1)

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

delete blank lines or lines with spaces only

Discussion started by: vascobrito

2. UNIX for Dummies Questions & Answers

delete blank lines from a file

Discussion started by: sachin.gangadha

3. UNIX for Dummies Questions & Answers

delete traling blank lines only

Discussion started by: visu

4. Shell Programming and Scripting

Why cant i delete blank lines?

Discussion started by: omgsomuchppl