Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

Trim

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Trim
# 1  
Old 04-23-2007
Trim
Hello,

I am passing a filename to a script to draw parameters from it. However, I want to use part of the filename as a parameter. The filename is transfer_ccf_3731_10.sh but I only need the 3731_10 part of it.

Is this possible? Any help or suggestions would be appreciated!

Regards,

J.
# 2  
Old 04-23-2007
you can use bash's internal parameter expansion, check the bash man page, or tools like awk/sed.
eg awk
Code:
# echo "transfer_ccf_3731_10.sh" | awk -F "_" '{print $3"_"substr($4,-1,2)}'
3731_10

combination eg:
Code:
# var="transfer_ccf_3731_10.sh"
# echo ${var%.sh}
transfer_ccf_3731_10
# echo ${var%.sh} | awk -F "_" '{print $3"_"$4}'
3731_10

# 3  
Old 04-23-2007
Quote:
Originally Posted by JWilliams
I am passing a filename to a script to draw parameters from it. However, I want to use part of the filename as a parameter. The filename is transfer_ccf_3731_10.sh but I only need the 3731_10 part of it.

Use the shell's parameter expansion:

Code:
filename=transfer_ccf_3731_10.sh
temp=${filename%%[0-9]*}
temp=${filename#"$temp"}
extract=${temp%.*}

Last edited by cfajohnson; 04-23-2007 at 06:44 PM..
# 4  
Old 04-23-2007
Quote:
Originally Posted by JWilliams
Hello,
....The filename is transfer_ccf_3731_10.sh but I only need the 3731_10 part of it.
Code:
# var=transfer_ccf_3731_10.sh
# OIFS="$IFS"
# IFS="[_.]"
# set -- $var
# part="$3_$4"
# IFS="$OIFS"
# echo $part
3731_10

# 5  
Old 04-24-2007
echo transfer_ccf_3731_10| cut -d_ -f3-
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Trim the data

i am passing below inputfils using while loop and ouput should be trim as below INPUT: src_SPS_d_Comment_Tran_File_20130417_001.dat src_SPS_d_Corp_Adv_Tran_File_20130417_001.dat src_SPS_d_Letter_Tran_File_20130417_001.dat src_SPS_d_Loan_Level_File_20130417_001.dat... (8 Replies)
Discussion started by: katakamvivek
8 Replies

2. Shell Programming and Scripting

Trim String

Hi, I wish to grep everything before the last "/bin" in the following string /opt/app/bin/app1/jdk150_07/bin/IA64N/java Desired output: "/opt/app/bin/app1/jdk150_07" Kindly help ... (2 Replies)
Discussion started by: mohtashims
2 Replies

3. Shell Programming and Scripting

Trim spaces

All, i am comparing the output of one command to a numberic if ] but my problem is the output of follwoing is but but has some leading columns. I don't have any problme in LINUX and HP-UX. But only in AIX i am getting the leading spaces. I have developed my script on LINUX but when... (4 Replies)
Discussion started by: rcc50886
4 Replies

4. Shell Programming and Scripting

Help with awk trim

I am trying to trim spaces for the fixed width file starting from location 129 and of length 20. I am expecting only around 40 records that will have length greater than 9. But i am getting around 4000 records. Please help me correct the following. nawk '{if (a=length(gsub(/... (2 Replies)
Discussion started by: pinnacle
2 Replies

5. Shell Programming and Scripting

Trim Filename

Hi All, I have a file named as FAB1_600015_CONRAD.A0_7XYZ12345.000_LT-SWET.01_LTPA25L_20110622-161429_07_WFR12345_20110622-161429_20110712-125228.data.dis I want to generate a directory taking only the 7XYZ12345.000_WFR12345 The length and format of the Filename will be the same... (2 Replies)
Discussion started by: asheshrocky
2 Replies

6. Shell Programming and Scripting

Trim a new line

Okay, I am trying to make a bash script to get a certain domains IP address (my home ip). My home is on a DHCP lease from my ISP, so I cannot always trust the IP address to remain constant. This is what I have so far for it: alias ip-home="ping -c 1 example.com | grep 'PING' | cut -d'(' -f2 |... (5 Replies)
Discussion started by: tnanek
5 Replies

7. Shell Programming and Scripting

trim and compare

1) I want to trim the zeros of the 1st file so they match the second file 2) run an automatic diff and error in lines that dont match File1 0.8035500 1.4138000 1.6381500 1.9256110 3.8075000 13.3270000 13.4155000 94.2700000 937.7000000 File2 0.80355 1.4138 1.63815 3.8075 1.925611... (5 Replies)
Discussion started by: sigh2010
5 Replies

8. Shell Programming and Scripting

another trim question using tr

Hi all, I've been looking for how to eliminate blank spaces in a variable or strings. I've seen several ways, using sed, awk and even python. One of them is use 'tr' command, but it does not work as I expected: For example: echo " stuff " | tr -s " "leaves one space ahead and another... (3 Replies)
Discussion started by: AlbertGM
3 Replies

9. Shell Programming and Scripting

Trim issue

Hi All, I am using trim in my code.. ID_SA_SOURCE="`echo "$data" | cut -c17-34 | tr -s " "`" ID_SA_DEST="`echo "$data" | cut -c35-52 | tr -s " "`" echo"$ID_SA_SOURCE";"$ID_SA_DEST"; the output is 0608166896; 3001339; contains one whitespace between the two ..how can i remove that single... (3 Replies)
Discussion started by: scorpio
3 Replies

10. Shell Programming and Scripting

trim lines

I want to delete all lines from 1 till a certain line. how to do that without redirection to another file (tail solution)? thanx (6 Replies)
Discussion started by: melanie_pfefer
6 Replies
Login or Register to Ask a Question