Checking for a file in file pattern before deleting it

Tags

beginners, deleting, file, pattern

Top Forums UNIX for Dummies Questions & Answers Checking for a file in file pattern before deleting it

05-09-2008

Registered User

17, 0

Join Date: Feb 2008

Last Activity: 8 March 2011, 5:49 AM EST

Posts: 17

Thanks Given: 0

Thanked 0 Times in 0 Posts

Checking for a file in file pattern before deleting it

Hi,

I need a script where I have delete all the files of type abc*.* from the directory /lmn/opq (passed as parameter to script)

But I need to check if there is file of type abc*.* existing in the directory or not before I use the
rm abc*.*
command.

Thanks

dsrookie

View Public Profile for dsrookie

Find all posts by dsrookie

05-09-2008

Registered User

151, 0

Join Date: Dec 2007

Last Activity: 5 October 2010, 9:10 AM EDT

Location: Northern NJ, USA

Posts: 151

Thanks Given: 0

Thanked 0 Times in 0 Posts

A - Why do you have to check if a file exists before you delete it? Who cares?

B - This smells like homework.

Dave Miller

View Public Profile for Dave Miller

Find all posts by Dave Miller

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Big pattern file matching within another pattern file in awk or shell

Hi I need to do a patten match between files . I am new to shell scripting and have come up with this so far. It take 50 seconds to process files of 2mb size . I need to tune this code as file size will be around 50mb and need to save time. Main issue is that I need to search the pattern from...

2. Shell Programming and Scripting

Checking Multiple File existance in a UNIX folder(Note: File names are all different)

HI Guys, I have some 8 files with different name and extensions. I need to check if they are present in a specific folder or not and also want that script to show me which all are not present. I can write if condition for each file but from a developer perspective , i feel that is not a good...

3. UNIX for Dummies Questions & Answers

Deleting a pattern in UNIX without deleting the entire line

Hi I have a file: r58778.3|SOURCES={KEY=f665931a...,fw,221-705}|ERRORS={16_1:T,30_1:T,56_1:C,57_1:T,59_1:A,101_1:A,115:-,158_1:C,186_1:A,204:-,271_1:T,305:-,350_1:C,368_1:G,442_1:C,472_1:G,477_1:A}|SOURCE_1="Contig_1092402550638"(f665931a359e36cea0976db191ff60ff09cc816e) I want to retain...

4. Shell Programming and Scripting

awk - writing matching pattern to a new file and deleting it from the current file

Hello , I have comma delimited file with over 20 fileds that i need to do some validations on. I have to check if certain fields are null and then write the line containing the null field into a new file and then delete the line from the current file. Can someone tell me how i could go...

5. Shell Programming and Scripting

Checking a pattern in file and the count of characters

I am having a zipped file which has the following URL contents - 98.70.217.222 - - "GET /liveupdate-aka.symantec.com/1340071490jtun_nav2k8enn09m25.m25?h=abcdefgh HTTP/1.1" 200 159229484 "-" "hBU1OhDsPXknMepDBJNScBj4BQcmUz5TwAAAAA" "-" In this line here is we only need to consider the...

6. Shell Programming and Scripting

deleting lines in a file that match a pattern without opening it

In Unix, how do I delete lines in a file that match a particular pattern without opening it. File contents are foo line1 misc whatever foo line 2 i want to delete all lines that have the pattern "foo" without opening the file. File should eventually contain misc whatever

7. Shell Programming and Scripting

Searching a pattern in file and deleting th ewhole line containing the pattern

Hi All, Please can someone assist in the script I have made that searches a pattern in a file and delete the whole line containing the pattern. #!bin/sh # The pattern that user want to add to the files echo "Enter the pattern of the redirect" read value # check if the user has...

8. Shell Programming and Scripting

deleting a pattern from a file

say i have a file with the following contents 0x20 0x20 0xc23886 > 0xc12354 > 0xc567555555 i want to delete "> " pattern and keep the rest of the file

9. Shell Programming and Scripting

deleting multiple accourances of a pattern from a file

I have a .sh file with the following contents: a b c a a b d c i want to delete the multiple occurances and keep one. say there are 3 a's in the file. I want to delete 2 of them and just keep 1 occurance.

10. Shell Programming and Scripting

Checking existence of file using file pattern

Hi Experts:), I need to check the existense of file using patterns.How can i do it? Ex: if my current directory has a number of files of pattern (ins_*), i need to check the existense of atleast one file. pls reply me.

UNIX for Dummies Questions & Answers