SED question


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting SED question
# 1  
Old 07-18-2011
SED question

I have the following string:
"File Reader"

I also have a list of directories:
"File Reader (#53)"
"CSV Writer (#47)"
"Scorer (#22)"

I want to search the name of each directory until I find "File Reader". Then, I want the corresponding number to be returned.

For example, if I am searching for File Reader, the desired output I am looking for is 53.

Thanks

---------- Post updated at 06:27 PM ---------- Previous update was at 05:10 PM ----------

Can SED be used to accomplish this?
# 2  
Old 07-18-2011
Can you be please more elaborate on this ??

Do you want to search for a directory and want to print the number of files in that ??

(OR)
All the directory names and number of files in that are mentioned in a file .And you want to search that file for a given directory name ??
# 3  
Old 07-18-2011
Try this:

Code:
sed -e '/File Reader/!d' -e 's/.*#\(.*\))"/\1/g'  fileread.txt

# 4  
Old 07-18-2011
Question

Sorry for not making myself clear:
The actual names of the directories are:
"File Reader (#53)"
"CSV Writer (#47)"
"Scorer (#22)"

but to just make it simple we can rename them to:
"dir1 (#29)"
"dir2 (#45)"
"dir3 (#23)"

I have gathered all of the directory names using the following code:

Code:
dirs=`ls -d  *(#*`
echo $dirs

output:
"dir1 (#29)"
"dir2 (#45)"
"dir3 (#23)"

Now I would like use SED to return the number portion of the desired directory name. For example, I would like to be able to input the string "dir1". Using the list of directories that I have already generated and stored into variable $dirs I want the output to be 29. Preferably if this value could be stored in a variable also would be great. Alternatively, if I was looking for "dir2" from the list of dirs, the desired output would be 45. Likewise for "dir3" where the desired output would be 23.

The number is part of the directory's name. All I am trying to do is cut the desired directory name and only return the number portion.

Quote:
Try this:


Code:
sed -e '/File Reader/!d' -e 's/.*#\(.*\))"/\1/g' fileread.txt
this did not work and returned the following message:
sed: can't read fileread.txt: No such file or directory

I am not sure why it is looking for an input file. No input file is needed.
# 5  
Old 07-18-2011
Code:
ls -d  *(#* | sed 's/.*#\([0-9]*\).*/\1/'

should do the trick
# 6  
Old 07-18-2011
Code:
$ ls -1
CSV Writer (#47)
File Reader (#53)
Scorer (#22)
ans
 
$ cat ans
function getnum
{
    echo "$1 (#"* | sed 's/.*#\([0-9]*\).*/\1/'
}
getnum Scorer
getnum "Dummy"
getnum "CSV Writer"
 
$ ./ans
22
 
47

# 7  
Old 07-18-2011
One with awk,

Code:
 
ls -d  *(#* | awk -F"[(#)]" '{ print $3 }'

Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

SED question

I am trying to write a script that will take an input text file in the format person: place: phonenumber; person: place: phonenumber; person: place: phonenumber; ... and output it using sed too: Name ######## Location ######### Phone Number... (1 Reply)
Discussion started by: jmack56
1 Replies

2. Shell Programming and Scripting

Sed question

I need to replace the numbers with a new string. How can I give a wildcard for the different # of numbers sed '/abcdef/s/abcdef=*/abcdef=999999/'<foo>foo1 From: To: abcdef=1234 abcdef=999999 abcdef=12345 abcdef=999999 abcdef=123456... (10 Replies)
Discussion started by: beppler
10 Replies

3. Shell Programming and Scripting

sed question

hi i have a file with this line: variable=/export/home/oracle I want to change the file so that the path is replaced with the value of another variable var2=/tmp/anything. how to do this in sed? thx (4 Replies)
Discussion started by: melanie_pfefer
4 Replies

4. Shell Programming and Scripting

Sed Question 1. (Don't quite know how to use sed! Thanks)

Write a sed script to extract the year, rank, and stock for the most recent 10 years available in the file top10_mktval.csv, and output in the following format: ------------------------------ YEAR |RANK| STOCK ------------------------------ 2007 | 1 | Exxon... (1 Reply)
Discussion started by: beibeiatNY
1 Replies

5. UNIX for Dummies Questions & Answers

sed question

How would I use sed to print everything on the line after the regular expresion? I have a configuration file setting several variables. cfg.dat DDB = cpptest SUDBNAME = sucpptestdb host = cpptest Example I want to search for the regular expresion 'SUDBNAME =' and print everything on... (3 Replies)
Discussion started by: orahi001
3 Replies

6. Shell Programming and Scripting

sed question

I have a file that conatins following info Policy1=U|guestRoom=test1idCode=5(1):!:Amenity2=U|RoomId=testrma=4(1):!:| GuestRoomAmenity1=U|guestRoomId=testguest1id^rmaCode=5(1):!:| I need it to look like this Policy1=U|guestRoom=test1idCode Amenity2=U|RoomId=testrmaCode... (2 Replies)
Discussion started by: arushunter
2 Replies

7. Shell Programming and Scripting

sed question

Hi, :) can any body explain the following statement sed 's/\(\)- ]//g' cheers RRK (3 Replies)
Discussion started by: ravi raj kumar
3 Replies

8. Shell Programming and Scripting

sed question

Hi, When deleting lines using sed, as i understand the lines are redirected to the standard output. What i'm unclear about is how to actually modify the file? If I write the command sed '1,2d' test it will display lines one and 2 onto the screen however the file is not modified? I think my... (5 Replies)
Discussion started by: c19h28O2
5 Replies

9. Shell Programming and Scripting

sed question (again)

hello there, I have a sed question. I have a file (temp.srv), in it it has v1_host1 v2_host2 And I have another file (temp2.srv), in it is has v1_host3_date v1_host1 v2_host2 v2_host4_date v3_host5_date I had used a script to remove the name from temp2.srv base on the name inside... (3 Replies)
Discussion started by: ahtat99
3 Replies

10. Shell Programming and Scripting

Sed Question

Hi, Is there any way to traverse the file once and look for the following conditions in one sweep instead of going over the file 3 times with different search criteria...... sed -n '/^ORA-07445/ p' /tmp/t$$ > ${OERRFILE} sed -n '/^ORA-00600/ p' /tmp/t$$ >> ${OERRFILE} ... (1 Reply)
Discussion started by: YS2002
1 Replies
Login or Register to Ask a Question