Shell Programming and Scripting

Hello everyone.

I have a dlink cam that save recordings splitted for hours. Each hour folder contain a lot of small avi files.

Repository has the following directories structure:

\_20140101/
\_ 01
\_a.avi
\_b.avi
\_ 02
\_c.avi
\_d.avi
\_20140101/
\_ 01
\_e.avi
\_f.avi
\_ 02
\_g.avi
\_h.avi

I need to enter each "day" directory and merge the "hours" avi files.

Command to merge is the following:

avimerge -o test.avi -i *.avi

My final goal is:

\_20140101/
\_ a+b+c+d.avi (concatenating of all avi files)
\_20140102/
\_ e+f+g+h.avi (concatenating of all avi files)

Other singles files and directory could be deleted after work.

Can anyone help me?
Ty

Hello setterx,

Kindly use code tags as per forum rules while putting codes and commands in posts. Following may help you, but it is applicable for the given input. Kindly let us know if this helps as a starting point.

Code:

awk -vs1="\\\_" '($0 ~ /\_2014/) {value=$0;set++;} set{if($0 ~ /^\\\_[a-z]/){a=1;v=v?v OFS $0:$0}} {if(set>1 && a){gsub(/\\\_/,"+",v);gsub(/.avi|[[:space:]]|^+/,X,v);print value ORS s1 v".avi";v="";a="";set=1}} END{gsub(/\\\_/,"+",v);gsub(/.avi|[[:space:]]|^+/,X,v);print value ORS s1 v".avi"}' input_file

Output will be as follows.

Code:

\_20140101/
\_a+b+c+d.avi
\_20140101/
\_e+f+g+h.avi

Thanks,
R. Singh

Your posted directory structure will not yield your desired output.

Anyhow, try sth. like (untested)

Code:

for i in \_201401*
  do cd $i
     avimerge -o test.avi -i */*.avi
#    delete files ad libitum
     cd ..
  done

No error checking nor e.g. directory test included yet...

Thank you!