Visit Our UNIX and Linux User Community

Shell script to calculate the size of files

Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Shell script to calculate the size of files
# 1  
Old 02-15-2011
Shell script to calculate the size of files

Dear all,
Please help me to write a script that can calculate the size of files.
For example: I have a directory which contain thousands of files. I need to know the size of files that their name begin with abc_123
Thank all!!
# 2  
Old 02-15-2011
This may do what you want:
du -hc abc_123*

# 3  
Old 02-15-2011
Thank Fmurphy so much, It's right but not enough. What I need is a script that will get total size.
For example: when I execute script, it will promote which files that I want to get by enter file name (abc_123*), then it will show the total size of these file.
# 4  
Old 02-15-2011
so what are you waiting for ?

If you try to learn something from this forum, the rest code should be simple.

Do self-study first.
# 5  
Old 02-16-2011
Isn't Fmurphy's line doing what you want?
When I run it I get what I think you're asking for.
du -h D*
492K    Desktop/Postmodernity_files
172K    Desktop/116-system-restore-disk_files
149M    Desktop
4.0K    Documents
244M    Downloads/Sarah McLachlan FLAC Pack - Discography [FLAC] [h33t] - Kitlope/Sarah McLachlan - Afterglow 2003
4.1G    Downloads/Deadwood Season 1
775M    Downloads/Decameron ~ Italian Classic ~ [RRG]{Brego}(
83G    Downloads

Edit: Or do you want for the sizes of each file to be totaled? Sed would probably do that.

Previous Thread | Next Thread
Test Your Knowledge in Computers #705
Difficulty: Medium
Confirmation bias is the tendency to search for, interpret, favor, and recall information in a way that affirms what we currently believe or think we already know.
True or False?

10 More Discussions You Might Find Interesting

1. Red Hat

Du -sh command taking time to calculate the big size files

Hi , My linux server is taking more time to calculate big size from long time. * i am accessing server through ssh * commands # - du -sh * #du -sh * | sort -n | grep G Please guide me for fast way to find big size directories under to / partition Thanks (8 Replies)
Discussion started by: Nats
8 Replies

2. Shell Programming and Scripting

Shell script to calculate the max cpu usage from the main script

Hi All, I have a script which does report the cpu usuage, there are few output parameter/fields displayed from the script. My problem is I have monitor the output and decide which cpu number (column 2) has maximum value (column 6). Since the output is displayed/updated every seconds, it's very... (1 Reply)
Discussion started by: Optimus81
1 Replies

3. Shell Programming and Scripting

Help in Shell script to report size of files=0

Hello, I am trying to write a shell script in unix which looks for the last two files in a folder, checks their size and reports(via mail) if either of their file size is =0. cd /tmp list last two files: ls -ltr | tail -2 check if size of any of these two files is 0 if true, then send a... (8 Replies)
Discussion started by: kiran1112
8 Replies

4. Programming

[c] How to calculate size of the file from size of the buffer?

Hi, Can I find size of the file from size of the buffer written? nbECRITS = fwrite(strstr(data->buffer, ";") + 1, sizeof(char), (data->buffsize) - LEN_NOM_FIC, fic_sortie); Thank You :) (1 Reply)
Discussion started by: ezee
1 Replies

5. Shell Programming and Scripting

Script shell, how to calculate percentage?

hello, please can you help me. jj and kk are two numbers which are the result of an sql program. I would like to calculate the ratio jj/kk*100. I have done this: ratio=$((jj/kk * 100)) or ratio=`expr $jj \/ expr $kk) but the result is 0 What can i do? Thanks for help. (3 Replies)
Discussion started by: likeaix
3 Replies

6. Solaris

calculate sum size of files by date (arg list too long)

Hi, I wanted a script to find sum of files for a particular date, below is my script ls -lrt *.req | nawk '$6 == "Aug"' | nawk '$7 == "1"'| awk '{sum = sum + $5} END {print sum}' However, i get the error below /usr/bin/ls: arg list too long How do i fix that. Many thanks before. (2 Replies)
Discussion started by: beginningDBA
2 Replies

7. UNIX for Dummies Questions & Answers

Unix shell script for finding top ten files of maximum size

I need to write a Unix shell script which will list top 10 files in a directory tree on basis of size. i.e. first file should be the biggest in the whole directory and all its sub directories. Please suggest any ideas (10 Replies)
Discussion started by: abhilashnair
10 Replies

8. UNIX for Dummies Questions & Answers

shell script to find files by date and size

Hi, I have a directory PRIVATE in which I have several directories and each of these have several files. Therefore, I need to find those files by size and date to back up those files in another directory. I don't know how to implement this shell script using ''find''. appreciate any... (1 Reply)
Discussion started by: dadadc
1 Replies

9. Shell Programming and Scripting

bash script working for small size files but not for big size files.

Hi, I have one file stat. Stat file contents are as follows: for example. H50768020040913,00260100,507680,13,0000000643,0000000643,00000,0000 H50769520040808,00260100,507695,13,0000000000,0000000000,00000,0000 H50770620040611,00260100,507706,13,0000000000,0000000000,00000,0000 Now i... (1 Reply)
Discussion started by: davidpreml
1 Replies

10. Shell Programming and Scripting

calculate size of some files

Hi, 1-I want to calculate the size of all files which are generated during last month in a directory. How can I do that ? Of cours, I find them by : $ls -l | grep jun but how to calculate the sum of their size ? 2- the same but for all files generated last month and before that. many thanks... (11 Replies)
Discussion started by: big123456
11 Replies

Featured Tech Videos