Shell Programming and Scripting

Hi,

this is the structure of the directory

/local/home/app/cases

under cases directory, below are the sub directories and each directory has files.

/local/home/app/cases/1

/local/home/app/cases/2

/local/home/app/cases/3

/local/home/app/cases/4

File types are .txt .sh and so on. recursively, in each directory, I only like to change the .sh files permission to 744. can someone pls help me on this. thanks

Code:

find /local/home/app/cases -iname '*\.sh' -type -exec chmod -c 744 {} \;

You missed the type:

Code:

find /local/home/app/cases -iname '*\.sh' -type f -exec chmod -c 744 {} \;

Escaping the period is not really necessary, and if there is a lot of files, using xargs is more efficient -- it will run only one chmod call on many files. Using -0 will allow for filenames with white characters:

Code:

find /local/home/app/cases -iname "*.sh" -type f -print0 | xargs -0 chmod -c 744

It is even more efficient to leave xargs out of the mix and let find invoke chmod with multiple operands by using + instead of \; to terminate the list of -exec arguments:

Code:

find /local/home/app/cases -iname '*.sh' -type f -exec chmod -c 744 {} +

Note that the find -iname primary and the chmod -c option are extensions to the standards that are not supplied by all implementations of find and chmod. If your system doesn't have these features, as long as you don't have files that end with .sH, Sh, or .SH and don't care about seeing a status message for every file whose permissions were changed, the following command should work on any system that supports the basic requirements of the standards for chmod and find:

Code:

find /local/home/app/cases -name '*.sh' -type f -exec chmod 744 {} +

If you do have mixed case filename extensions and your system doesn't support -iname, let us know and we can help you modify the find to look for all four combinations of capitalization using multiple -name primaries.

Just out of curiosity, why do you want these files to have 744 rather than 755 permissions?

man chmod

Code:

~/case$ tree
.
├── 1
│   ├── file.sh
│   └── file.txt
├── 2
│   ├── file.sh
│   └── file.txt
└── 3
    ├── file.sh
    └── file.txt

Code:

~/case$ chmod -c -R 744 {1..3}/*.txt
mode of `1/file.txt' changed from 0755 (rwxr-xr-x) to 0744 (rwxr--r--)
mode of `2/file.txt' changed from 0755 (rwxr-xr-x) to 0744 (rwxr--r--)
mode of `3/file.txt' changed from 0755 (rwxr-xr-x) to 0744 (rwxr--r--)

Thanks everyone for their inputs.

the below commands done the job.

Code:

find /local/home/app/cases -iname '*\.sh' -type f -exec chmod -c 744 {} \;