Question

shell string substring

Asked by: jw124210

Hi Experts

I have a file that contains lines of text that I want to use in a shell scripts, the problem is I dont know how to get the subtring I want from each line. the file structure is as follows:

jms/hh/ht
jms/ff/rr/ww
jms/hh
jms/www/tttt/uu

I want to a subtring of the last word after the "/" e.g the first line I would like the substring "ht"

Your assistance  will be appreciated.

regards

Paul

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Asked On
2009-10-16 at 02:44:44ID24817528
Topics

Unix Systems Programming

,

Bourne Shell (sh)

,

Bourne-Again Shell (bash)

Participating Experts
3
Points
125
Comments
9

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Answers

 

by: oklitPosted on 2009-10-16 at 02:55:50ID: 25588045

for a in `cat file`; do basename $a; done

                                              
1:

Select allOpen in new window

 

by: oheilPosted on 2009-10-16 at 03:03:23ID: 25588072

or do:

  awk 'BEGIN{FS="/";}{print $NR;}' /path/to/file.txt

or

  #!/bin/csh -f
  foreach file (`cat /path/to/file.txt`)
    echo $file:t
  end

 

by: jw124210Posted on 2009-10-16 at 03:49:01ID: 25588266

Hi Oheil

I am getting a syntax  error when I run the second script. I am using Bourne shell. most of my scripts are in bourne shell and would prefer to use this shell.

regards

Paul

 

by: oheilPosted on 2009-10-16 at 03:56:32ID: 25588297

in this case oklit had the answer, I rewrite it:

  #!/bin/bash
  for line in `cat /path/to/file.txt`
  do
    basename $line
  done

 

by: jw124210Posted on 2009-10-16 at 05:06:07ID: 25588672

Thank you Oheil, What I would like to do is display both the names in the file as it is, and the subtring. Why I am doing this is because I want to use one file. My application takes both full name in the file and the substring. The substring command you gave me works very well, its only that I would want to achieve the above. My apologies for not being clear enough.

regards

 

by: oheilPosted on 2009-10-16 at 05:09:09ID: 25588693


  #!/bin/bash
  for line in `cat /path/to/file.txt`
  do
    echo $line"  -->  "`basename $line`
  done

 

by: jw124210Posted on 2009-10-16 at 05:14:35ID: 25588736

I want to put basename $line in a variable that I would append to my application, if I enter it as you specified above my unix command throws syntax errors. I tired the following "TVariable= basename $line", and it does not work, please advise.

 

by: oheilPosted on 2009-10-16 at 05:17:31ID: 25588754


TVariable=`basename $line`

` = backtick

 

by: ozoPosted on 2009-10-16 at 06:54:29ID: 25589539

echo ${line##*/}

20120131-EE-VQP-002

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