Sponsored Content
Top Forums Shell Programming and Scripting No. of underscores in a file name Post 302853093 by bartus11 on Friday 13th of September 2013 07:43:00 AM
Old 09-13-2013
Code:
echo "$var" | grep ".*_.*_.*" > /dev/null && echo "$var has two or more underscores"

 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

change spaces to underscores script !!!

Hi everybody! Im not good in scripting and I need a script to take all the files with spaces in their names and change it to underscores. alice cooper.mp3 >> alice_cooper.mp3 Thanks in advance. (2 Replies)
Discussion started by: piltrafa
2 Replies

2. Shell Programming and Scripting

Scripting to convert underscores to spaces

Greetings, I have a bunch of music files that I want to strip the underscores out, and leave only spaces. All that I've found on the web is how to add underscores to files that have spaces, and reversing the "tr" command does not make a difference. Here is how to convert spaces to... (6 Replies)
Discussion started by: brakeb
6 Replies

3. Shell Programming and Scripting

extract string from file name between two underscores

Hi, Here is my question, I need to extract string between two underscores from the filename for example, filename is atmos_8xdaily_instant_300x300_1_12.nc what I want to extract is 300x300. There are many such files in my directory, so I guess the code should be like: for file... (7 Replies)
Discussion started by: 1988PF
7 Replies

4. Shell Programming and Scripting

Match list of strings in File A and compare with File B, C and write to a output file in CSV format

Hi Friends, I'm a great fan of this forum... it has helped me tone my skills in shell scripting. I have a challenge here, which I'm sure you guys would help me in achieving... File A has a list of job ids and I need to compare this with the File B (*.log) and File C (extend *.log) and copy... (6 Replies)
Discussion started by: asnandhakumar
6 Replies

5. Shell Programming and Scripting

How to find no of underscores in a variable?

Hi i have a variable var=a_b_c i want command to find no. of underscores in a variable Thank you (7 Replies)
Discussion started by: pracheth
7 Replies

6. UNIX for Dummies Questions & Answers

Appending "_" (underscores) to variable names

Hello, I have a file, inputs.list that contain prefixes to files that are inputs for a program inputs.list A B C D E ... My files are of the format A_1, A_2, B_1, B_2 and so on. I am planning to run a shell script that takes each line from the above file and feed it to the runProg.sh... (3 Replies)
Discussion started by: Gussifinknottle
3 Replies

7. Shell Programming and Scripting

Compare 2 text file with 1 column in each file and write mismatch data to 3rd file

Hi, I need to compare 2 text files with around 60000 rows and 1 column. I need to compare these and write the mismatch data to 3rd file. File1 - file2 = file3 wc -l file1.txt 58112 wc -l file2.txt 55260 head -5 file1.txt 101214200123 101214700300 101250030067 101214100500... (10 Replies)
Discussion started by: Divya Nochiyil
10 Replies

8. Shell Programming and Scripting

How to separate data with varying amounts of underscores?

All, I've searched and haven't found a solution for my particular issue. I have a file with lines of data that contain varying amounts of underscores imbedded. But all the strings have a final underscore and an interface name: dmk_hcn_dalian2.XXXX.XXX.XX.COM_Se0/0/0... (4 Replies)
Discussion started by: turk22
4 Replies

9. Shell Programming and Scripting

Replace spaces with underscores up to first comma but not after the comma

I have a comma delimited file of major codes and descriptions. I want to replace all occurrences of spaces with underscores up to the first comma (only in the first field), but not replace spaces following the comma. For instance I have the following snippet of the file: EK ED,Elementary and... (7 Replies)
Discussion started by: tdouty
7 Replies

10. Shell Programming and Scripting

Shell script (sh file) logic to compare contents of one file with another file and output to file

Shell script logic Hi I have 2 input files like with file 1 content as (file1) "BRGTEST-242" a.txt "BRGTEST-240" a.txt "BRGTEST-219" e.txt File 2 contents as fle(2) "BRGTEST-244" a.txt "BRGTEST-244" b.txt "BRGTEST-231" c.txt "BRGTEST-231" d.txt "BRGTEST-221" e.txt I want to get... (22 Replies)
Discussion started by: pottic
22 Replies
escape(1)							Mail Avenger 0.8.3							 escape(1)

NAME
escape - escape shell special characters in a string SYNOPSIS
escape string DESCRIPTION
escape prepends a "" character to all shell special characters in string, making it safe to compose a shell command with the result. EXAMPLES
The following is a contrived example showing how one can unintentionally end up executing the contents of a string: $ var='; echo gotcha!' $ eval echo hi $var hi gotcha! $ Using escape, one can avoid executing the contents of $var: $ eval echo hi `escape "$var"` hi ; echo gotcha! $ A less contrived example is passing arguments to Mail Avenger bodytest commands containing possibly unsafe environment variables. For example, you might write a hypothetical reject_bcc script to reject mail not explicitly addressed to the recipient: #!/bin/sh formail -x to -x cc -x resent-to -x resent-cc | fgrep "$1" > /dev/null && exit 0 echo "<$1>.. address does not accept blind carbon copies" exit 100 To invoke this script, passing it the recipient address as an argument, you would need to put the following in your Mail Avenger rcpt script: bodytest reject_bcc `escape "$RECIPIENT"` SEE ALSO
avenger(1), The Mail Avenger home page: <http://www.mailavenger.org/>. BUGS
escape is designed for the Bourne shell, which is what Mail Avenger scripts use. escape might or might not work with other shells. AUTHOR
David Mazieres Mail Avenger 0.8.3 2012-04-05 escape(1)
All times are GMT -4. The time now is 10:45 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy