the equivalent of perl's "\s" in sed

Tags

beginners

Top Forums UNIX for Dummies Questions & Answers the equivalent of perl's "\s" in sed

04-07-2010

Registered User

43, 0

Join Date: Mar 2009

Last Activity: 15 May 2014, 9:03 PM EDT

Posts: 43

Thanks Given: 15

Thanked 0 Times in 0 Posts

the equivalent of perl's "\s" in sed

Hi:

I am a little bit surprised to learn that there is no equivalent of "\s" (blank space) in sed.

How do you represent all types of blank in sed, including " ", "\t", "\n" etc?

Thanks.

phil518

View Public Profile for phil518

Find all posts by phil518

04-07-2010

Registered User

5,521, 335

Join Date: Dec 2008

Last Activity: 28 March 2014, 8:35 AM EDT

Location: Vienna, Austria, Earth

Posts: 5,521

Thanks Given: 38

Thanked 335 Times in 308 Posts

Why should it? The backslash character classes are a Perl specialty, and sed has been around long before. It does, however, support the good old POSIX BREs, where the equivalent would be [[:blank:]] (more or less).

pludi

View Public Profile for pludi

Find all posts by pludi

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Bash script - Print an ascii file using specific font "Latin Modern Mono 12" "regular" "9"

Hello. System : opensuse leap 42.3 I have a bash script that build a text file. I would like the last command doing : print_cmd -o page-left=43 -o page-right=22 -o page-top=28 -o page-bottom=43 -o font=LatinModernMono12:regular:9 some_file.txt where : print_cmd ::= some printing...

2. Shell Programming and Scripting

Awk,sed : change every 2nd field ":" to "|"

Hi Experts, I have a string with colon delimited, want 2nd colon to be changed to a pipe. data: 101:8:43:4:72:14:41:69:85:3:137:4:3:0:4:0:9:3:0:3:12:3: I am trying with sed, but can change only 1 occurance: echo "101:8:43:4:72:14:41:69:85:3:137:4:3:0:4:0:9:3:0:3:12:3:" | sed 's/:/|/2'...

3. Post Here to Contact Site Administrators and Moderators

Suggestion: adding two new groups "sed" and "awk"

Majority of the questions are pertaining file/string parsing w.r.t sed or awk It would be nice to have these two as their own sub category under shell-programming-scripting which can avoid lot of duplicate posts.

4. Shell Programming and Scripting

Equivalent to Perl's and Bash's "=~" Operator?

Hello All, Alright, so this is driving me absolutely insane. I can't seem to find this ANYWHERE... I've tried every combination and synonym I can think of for this trying to search Google. What is the Expect/Tcl equivalent to Perl and Bash's "=~" operator, (i.e. the "contains" operator)....

5. Shell Programming and Scripting

how to use "cut" or "awk" or "sed" to remove a string

logs: "/home/abc/public_html/index.php" "/home/abc/public_html/index.php" "/home/xyz/public_html/index.php" "/home/xyz/public_html/index.php" "/home/xyz/public_html/index.php" how to use "cut" or "awk" or "sed" to get the following result: abc abc xyz xyz xyz

6. Shell Programming and Scripting

Using sed to find text between a "string " and character ","

Hello everyone Sorry I have to add another sed question. I am searching a log file and need only the first 2 occurances of text which comes after (note the space) "string " and before a ",". I have tried sed -n 's/.*string $*$,.*/\1/p' filewith some, but limited success. This gives out all...

7. Shell Programming and Scripting

awk command to replace ";" with "|" and ""|" at diferent places in line of file

Hi, I have line in input file as below: 3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL My expected output for line in the file must be : "1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL" Can someone...

8. Shell Programming and Scripting

Simplify Bash Script Using "sed" Or "awk"

Input file: 2 aux003.net3.com error12 6 awn0117.net1.com error13 84 aux008 error14 29 aux001.ha.ux.isd.com error12 209 aux002.vm.ux.isd.com error34 21 alx0027.vm.net2.com error12 227 dux001.net5.com error123 22 us008.dot.net2.com error121 13 us009.net2.com error129Expected Output: 2...

9. Shell Programming and Scripting

cat $como_file | awk /^~/'{print $1","$2","$3","$4}' | sed -e 's/~//g'

hi All, cat file_name | awk /^~/'{print $1","$2","$3","$4}' | sed -e 's/~//g' Can this be done by using sed or awk alone

10. UNIX for Advanced & Expert Users

Commands on Digital Unix equivalent to for "top" and "sar" on other Unix flavour

Hi, We have a DEC Alpha 4100 Server with OSF1 Digital Unix 4.0. Can any one tell me, if there are any commands on this Unix which are equivalent to "top" and "sar" on HP-UX or Sun Solaris ? I am particularly interested in knowing the CPU Load, what process is running on which CPU, etc. ...

UNIX for Dummies Questions & Answers