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I have two files:

~/Pulpit/kot$ find . -name "*jpg" -printf "%f\n"
1.jpg
`[~!($%^_&*){.}\___"`]`1.jpg

I want to change their name to:

_home_pic_Pulpit_kot_1.jpg

_home_pic_Pulpit_kot_`[~!($%^_&*){.}\___"`]`1.jpg

I use this command:

~/Pulpit/kot$ find $PWD -name "*.jpg" | mawk '{c=$0; gsub("/", "_", c)}{system("echo mv -v " $0 " " c)}'
mv -v /home/pic/Pulpit/kot/1.jpg _home_pic_Pulpit_kot_1.jpg
/bin/sh: Syntax error: word unexpected (expecting ")")

Thank you for your help.

EDIT:

This command works.

find $PWD -name "*.jpg" -exec bash -c 'mv "$0" "${0//\//_}"' {} \;

How to do the same with mawk?

EDIT- 1:

This solution works:

find $PWD -name "*.jpg" | mawk 'a=$0{gsub("/", "_")}{system("mv -v '"'"'" a "'"'"'  '"'"'" $0 "'"'"'")}'

find $PWD -name "*.jpg" | mawk 'a=$0{gsub("/", "_")}{system("mv -v '\''" a "'\'' '\''" $0 "'\'' ")}'

find $PWD -name "*.jpg" | mawk 'a=$0{gsub("/", "_")}{system("mv -v \047" a "\047 \047" $0 "\047 ")}'

Thank you all for your help.

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2  
Do you really have a file named ./`[~!($%^_&*){.}\___"`]`1.jpg? I am utterly horrified. I generally stick to the POSIX Portable Filename Character Set. What are you trying to do? – jw013 May 3 '12 at 11:01
Yes. I have a test file: See my edit. – nowy May 3 '12 at 11:06
I want to change "/" to "_" (as in gawk). – nowy May 3 '12 at 11:14
1  
Are you sure / is in file name? Like in your output seems ./ is just added by find. Try find . -name "*jpg" -printf "%f\n" instead to output it without ./ in the begin. – rush May 3 '12 at 11:40
1  
@nowy I'm a bit confused by what you are doing. / is never a valid character in a file name because it is the path separator. Replacing / in a path means moving the files to a completely directory, not just a simple file name transformation. Whereas ./file is rather ordinary, ._file is a dotfile / hidden file, whereas dir/file becomes dir_file. Is that really what you intend? – jw013 May 3 '12 at 12:05
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1 Answer

up vote 0 down vote accepted

You probably just need to put single quotes around the filename arguments to mv. It's ugly but...

change

system("echo mv -v " $0 " " c)

to 

system("echo mv -v '"'"'" $0 "'"'"' '"'"'" c "'"'"'")
share|improve this answer
Your solution works. Thank you very much.find $PWD -name "*.jpg" | mawk 'a=$0{gsub("/", "_")}{system("mv -v '"'"'" a "'"'"' '"'"'" $0 "'"'"'")}' – nowy May 3 '12 at 14:47
1  
@nowy If I understand what you're trying to do correctly, this isn't correct. Try with a ' in the file name. Also, that '"'"'" is horribly unreadable. I recommend '\''" or \047". – Gilles May 3 '12 at 23:41
@Gilles Thank you for your help. This is a good way: find $PWD -name "*.jpg" | mawk 'a=$0{gsub("/", "_")}{system("mv -v '\''" a "'\'' '\''" $0 "'\'' ")}' or: find $PWD -name "*.jpg" | mawk 'a=$0{gsub("/", "_")}{system("mv -v \047" a "\047 \047" $0 "\047 ")}' – nowy May 4 '12 at 7:39

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