Sponsored Content
Top Forums UNIX for Beginners Questions & Answers How do I redirect output from "find", either to a file or another command? Post 303043870 by arghvark on Sunday 9th of February 2020 06:06:33 PM
Old 02-09-2020
There is no script. I am entering this command on the command line.

I'm not just "suppressing the error messages"; I am glad to be reminded about /dev/null, but what I'm trying to do here is understand how to use find in this way -- if it outputs things that I can filter with grep, then how do I pipe the output to the grep command?

I don't know what the contents of the root folder have to do with anything; it hasn't changed since I installed the Raspberry Debian yesterday. In case you can make some use of it, here it is:
Code:
total 72
drwxr-xr-x   2 root root  4096 Feb  5 10:52 bin
drwxr-xr-x   3 root root  3584 Dec 31  1969 boot
drwxr-xr-x  16 root root  3780 Feb  9 11:33 dev
drwxr-xr-x 118 root root  4096 Feb  9 11:19 etc
drwxr-xr-x   3 root root  4096 Feb  5 10:47 home
drwxr-xr-x  17 root root  4096 Feb  5 11:00 lib
drwx------   2 root root 16384 Feb  5 11:22 lost+found
drwxr-xr-x   3 root root  4096 Feb  8 21:46 media
drwxr-xr-x   2 root root  4096 Feb  5 10:42 mnt
drwxr-xr-x   6 root root  4096 Feb  5 10:58 opt
dr-xr-xr-x 152 root root     0 Dec 31  1969 proc
drwx------   4 root root  4096 Feb  5 11:24 root
drwxr-xr-x  25 root root   760 Feb  8 23:28 run
drwxr-xr-x   2 root root  4096 Feb  8 19:16 sbin
drwxr-xr-x   2 root root  4096 Feb  5 10:42 srv
dr-xr-xr-x  12 root root     0 Feb  9 12:09 sys
drwxrwxrwt  13 root root  4096 Feb  9 16:17 tmp
drwxr-xr-x  11 root root  4096 Feb  5 10:53 usr
drwxr-xr-x  12 root root  4096 Feb  9 11:17 var

I know my process does not have write privilege on the folder, I didn't think I would need it, and evidently you don't either.

So my question is -- if this is the correct command, then why am I being told "Permission denied" when I run it?
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

the operato < for redirect output "inverse"....

see this cat < Files return the cointent of Files but cat files return the same result WHI??? this command lp -f """PRINTER" < cat files not print the content of files (1 Reply)
Discussion started by: ZINGARO
1 Replies

2. Shell Programming and Scripting

"find command" to find the files in the current directories but not in the "subdir"

Dear friends, please tell me how to find the files which are existing in the current directory, but it sholud not search in the sub directories.. it is like this, current directory contains file1, file2, file3, dir1, dir2 and dir1 conatins file4, file5 and dir2 contains file6,... (9 Replies)
Discussion started by: swamymns
9 Replies

3. Shell Programming and Scripting

store the output of "find" command in a variable?

I intend to find the path/full location of a file(filename given by user thru "read filenme") using "find" or any other command and then store it's output in a variable for some other processing. But struggling to put all things together (i.e finding the fully qualified location of that file and... (4 Replies)
Discussion started by: punitpa
4 Replies

4. UNIX for Dummies Questions & Answers

Explanation of "total" field in "ls -l" command output

When I do a listing in one particular directory (ls -al) I get: total 43456 drwxrwxrwx 2 root root 4096 drwxrwxrwx 3 root root 4096 -rwxrwxr-x 1 nobody nobody 3701594 -rwxrwxr-x 1 nobody nobody 3108510 -rwxrwxr-x 1 nobody nobody 3070580 -rwxrwxr-x 1 nobody nobody 3099733 -rwxrwxr-x 1... (1 Reply)
Discussion started by: proactiveaditya
1 Replies

5. Shell Programming and Scripting

awk command to replace ";" with "|" and ""|" at diferent places in line of file

Hi, I have line in input file as below: 3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL My expected output for line in the file must be : "1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL" Can someone... (7 Replies)
Discussion started by: shis100
7 Replies

6. Shell Programming and Scripting

Problem with "find" and "grep" command

I want to list all files/lines which except those which contain the pattern ' /proc/' OR ' /sys/' (mind the leading blank). In a first approach I coded: find / -exec ls -ld {} | grep -v ' /proc/| /sys/' \; > /tmp/list.txt But this doesn't work. I got an error (under Ubuntu): grep:... (5 Replies)
Discussion started by: pstein
5 Replies

7. Shell Programming and Scripting

Using a single "find" cmd to search for multiple file types and output individual files

Hi All, I am new here but I have a scripting question that I can't seem to figure out with the "find" cmd. What I am trying to do is to only have to run a single find cmd parsing the directories and output the different file types to induvidual files and I have been running into problems.... (3 Replies)
Discussion started by: swaters
3 Replies

8. Shell Programming and Scripting

What is the right way to redirect script output use ">" or ">>" ?

Which one of the following are more accurate and why? nohup myScript.sh 1>nohup_$(date +%Y%m%d%H%M%S).out 2>&1 & nohup myScript.sh 1>>nohup_$(date +%Y%m%d%H%M%S).out 2>&1 & nohup myScript.sh >nohup_$(date +%Y%m%d%H%M%S).out 2>&1 & nohup myScript.sh >>nohup_$(date +%Y%m%d%H%M%S).out 2>&1 &... (3 Replies)
Discussion started by: kchinnam
3 Replies

9. UNIX for Dummies Questions & Answers

Using "mailx" command to read "to" and "cc" email addreses from input file

How to use "mailx" command to do e-mail reading the input file containing email address, where column 1 has name and column 2 containing “To” e-mail address and column 3 contains “cc” e-mail address to include with same email. Sample input file, email.txt Below is an sample code where... (2 Replies)
Discussion started by: asjaiswal
2 Replies

10. Programming

Redirecting output to new file for command "perldoc perllocal"

Hi, I have to redirect output of the command "perldoc perllocal" to new file which contains all the perl module installed. Currently using perldoc perllocal >> mod_data This does not contain all perl modules installed locally on machine, and each character is doubled. Please... (3 Replies)
Discussion started by: asak
3 Replies
find(1) 						      General Commands Manual							   find(1)

Name
       find - find files

Syntax
       find pathname-list  expression

Description
       The  command  recursively  descends the directory hierarchy for each pathname in the pathname-list (that is, one or more pathnames) seeking
       files that match a boolean expression written in the primaries given below.  In the descriptions, the argument n is used as a decimal inte-
       ger where +n means more than n, -n means less than n , and n means exactly n.

Options
       -atime n       Tests true if the file has been accessed in n days.

       -cpio output   Writes current file on output in the format (5120-byte records) specified in the reference page.	The output can be either a
		      file or tape device.  If output is a tape device the B key must be used to read data from the tape.

       -ctime n       Tests true if the file has been changed in n days.

       -depth	      Always true; causes descent of the directory hierarchy to be done so that all entries in a directory are acted on before the
		      directory  itself (that is, postorder instead of preorder).  This can be useful when is used with to transfer files that are
		      contained in directories without write permission.

       -exec command  Tests true if specified command returns a 0 on exit.  The end of the command must be punctuated by an escaped semicolon.	 A
		      command argument `{}' is replaced by the current pathname.

       -group gname   Tests true if group ID matches specified group name.

       -inum n	      Tests true if the file has inode number n.

       -links n       Tests true if the file has n links.

       -mount	      Tests true if the current file is on the same file system as the current starting pathname.

       -mtime n       Tests true if the file has been modified in n days.

       -name filename Tests  true  if  the  filename  argument matches the current file name.  Normal Shell argument syntax may be used if escaped
		      (watch out for `[', `?' and `*').

       -newer file    Tests true if the current file has been modified more recently than the argument file.

       -ok command    Executes specified command on standard output, then standard input is read and command executed only upon response y.

       -perm onum     Tests true if file has specified octal number.  For further information, see If onum is prefixed by a minus sign, more  flag
		      bits (017777) become significant and the flags are compared: (flags&onum)==onum.	For further information, see

       -print	      Prints current pathname.

       -size n	      Tests true if the file is n blocks long (512 bytes per block).

       -type c	      Tests  true  if  file is c type ( c = b, block special file: c, character special file: d, directory: f, plain file: l, sym-
		      bolic link: p, type port: s, type socket).

       -user uname    Tests true if file owner is login name or numeric user ID.

       The primaries may be combined using the following operators (in order of decreasing precedence):

       1)  A parenthesized group of primaries and operators (parentheses are special to the Shell and must be escaped).

       2)  The negation of a primary (`!' is the unary not operator).

       3)  Concatenation of primaries (the and operation is implied by the juxtaposition of two primaries).

       4)  Alternation of primaries (`-o' is the or operator).

Examples
       To remove all files named `a.out' or `*.o' that have not been accessed for a week:
       find / ( -name a.out -o -name '*.o' ) 
       -atime +7 -exec rm {} ;

       To find all files on the root file system type:
       find / -mount -print

       To write all the files on the root file system to tape:
       find / -mount -print -cpio /dev/rmt?h
       cpio -iBvt < /dev/rmt?h

       To find all the mount points on the root file system type:
       find / ! -mount -print

Files
See Also
       cpio(1), sh(1), test(1), cpio(5), fs(5)

																	   find(1)
All times are GMT -4. The time now is 09:26 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy