conditional find output missing
Im trying to build a conditional statement to search for files of a certain size (in this case 1Gb.
if [ "find /location/sub/int/ -size +1G" ]
then
> /location/sub/int/large_file_audit.txt
fi
I run this and it creates a file but the file is empty, how can I get the results of the find to populate into the file? what am I doing wrong?
command-line bash find
edited Jan 18 at 21:56
Ravexina
32.3k1483113
asked Jan 18 at 21:32
ShadwarShadwar
162
add a comment |
Im trying to build a conditional statement to search for files of a certain size (in this case 1Gb.
if [ "find /location/sub/int/ -size +1G" ]
then
> /location/sub/int/large_file_audit.txt
fi
I run this and it creates a file but the file is empty, how can I get the results of the find to populate into the file? what am I doing wrong?
command-line bash find
edited Jan 18 at 21:56
Ravexina
32.3k1483113
asked Jan 18 at 21:32
ShadwarShadwar
162
add a comment |
Im trying to build a conditional statement to search for files of a certain size (in this case 1Gb.
if [ "find /location/sub/int/ -size +1G" ]
then
> /location/sub/int/large_file_audit.txt
fi
I run this and it creates a file but the file is empty, how can I get the results of the find to populate into the file? what am I doing wrong?
command-line bash find
edited Jan 18 at 21:56
Ravexina
32.3k1483113
asked Jan 18 at 21:32
ShadwarShadwar
162
Im trying to build a conditional statement to search for files of a certain size (in this case 1Gb.
if [ "find /location/sub/int/ -size +1G" ]
then
> /location/sub/int/large_file_audit.txt
fi
I run this and it creates a file but the file is empty, how can I get the results of the find to populate into the file? what am I doing wrong?
command-line bash find
command-line bash find
edited Jan 18 at 21:56
Ravexina
32.3k1483113
asked Jan 18 at 21:32
ShadwarShadwar
162
edited Jan 18 at 21:56
Ravexina
32.3k1483113
asked Jan 18 at 21:32
ShadwarShadwar
162
edited Jan 18 at 21:56
Ravexina
32.3k1483113
edited Jan 18 at 21:56
Ravexina
32.3k1483113
edited Jan 18 at 21:56
Ravexina
32.3k1483113
32.3k1483113
asked Jan 18 at 21:32
ShadwarShadwar
162
asked Jan 18 at 21:32
ShadwarShadwar
162
asked Jan 18 at 21:32
ShadwarShadwar
162
162
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
Your test if [ "find /location/sub/int/ -size +1G" ] doesn't work the way you intend because it tests the non-emptiness of the string "find /location/sub/int/ -size +1G" - which will always be true. In any case, the redirection > /location/sub/int/large_file_audit.txt will not magically pick up the standard output of the preceding command, so will always create an empty file.
Perhaps the closest to your intent in Bash would be to put the results of find into an array, and then test whether it has any elements:
mapfile -t files < <(find /location/sub/int/ -size +1G)
if (( ${#files[@] > 0 )); then
printf '%sn' "${files[@]}" > /location/sub/int/large_file_audit.txt
fi
This won't gracefully handle filenames containing newlines - with newer versions of bash, you could make the find and mapfile null-delimited, but there's not much benefit if you're outputting them as a newline-delimited list anyhow.
answered Jan 18 at 23:51
steeldriversteeldriver
67.8k11110182
add a comment |
One liner workaround:
find -size +10G | grep ".*" > file.log || (rm file.log; echo "Can't find anything")
Or:
find -size +10G | grep ".*" > file.log || rm file.log
Note that find returns 1 (False) when files are not processed correctly for any reason, so I suggest using something like:
#!/bin/bash
RESULTS=$(find /path -size +1G)
if [ -n "$RESULTS" ];
then
echo "$RESULTS" > /path/file.log
fi
First run the find and put the results in a variable, then if the variable contained anything save that into a log file.
edited Jan 19 at 4:41
Sergiy Kolodyazhnyy
72.1k9148314
answered Jan 18 at 21:47
RavexinaRavexina
32.3k1483113
2
While the answer is all correct, you might want to touch on why originalif [ "find /location/sub/int/ -size +1G" ]does not work as intended ( and what it actually does instead of what user expects ).
– Sergiy Kolodyazhnyy
Jan 18 at 22:54
1
find returns 1 if I ask it to look somewhere that doesn't exist, but if the path exists but -size finds nothing, it does return 0. (and 1 is false).
– Xen2050
Jan 19 at 2:54
@Xen2050 To be exact ,findreturns 1 for any case where directory entries were not processed correctly as stated in EXIT STATUS part of the manual, which includes permission denied error on subdirectories or parent directory (try withchmod -rortouch testdir/subdir/foobar2;chmod -x testdir).
– Sergiy Kolodyazhnyy
Jan 19 at 4:40
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
Your test if [ "find /location/sub/int/ -size +1G" ] doesn't work the way you intend because it tests the non-emptiness of the string "find /location/sub/int/ -size +1G" - which will always be true. In any case, the redirection > /location/sub/int/large_file_audit.txt will not magically pick up the standard output of the preceding command, so will always create an empty file.
Perhaps the closest to your intent in Bash would be to put the results of find into an array, and then test whether it has any elements:
mapfile -t files < <(find /location/sub/int/ -size +1G)
if (( ${#files[@] > 0 )); then
printf '%sn' "${files[@]}" > /location/sub/int/large_file_audit.txt
fi
This won't gracefully handle filenames containing newlines - with newer versions of bash, you could make the find and mapfile null-delimited, but there's not much benefit if you're outputting them as a newline-delimited list anyhow.
answered Jan 18 at 23:51
steeldriversteeldriver
67.8k11110182
add a comment |
Your test if [ "find /location/sub/int/ -size +1G" ] doesn't work the way you intend because it tests the non-emptiness of the string "find /location/sub/int/ -size +1G" - which will always be true. In any case, the redirection > /location/sub/int/large_file_audit.txt will not magically pick up the standard output of the preceding command, so will always create an empty file.
Perhaps the closest to your intent in Bash would be to put the results of find into an array, and then test whether it has any elements:
mapfile -t files < <(find /location/sub/int/ -size +1G)
if (( ${#files[@] > 0 )); then
printf '%sn' "${files[@]}" > /location/sub/int/large_file_audit.txt
fi
This won't gracefully handle filenames containing newlines - with newer versions of bash, you could make the find and mapfile null-delimited, but there's not much benefit if you're outputting them as a newline-delimited list anyhow.
answered Jan 18 at 23:51
steeldriversteeldriver
67.8k11110182
add a comment |
Your test if [ "find /location/sub/int/ -size +1G" ] doesn't work the way you intend because it tests the non-emptiness of the string "find /location/sub/int/ -size +1G" - which will always be true. In any case, the redirection > /location/sub/int/large_file_audit.txt will not magically pick up the standard output of the preceding command, so will always create an empty file.
Perhaps the closest to your intent in Bash would be to put the results of find into an array, and then test whether it has any elements:
mapfile -t files < <(find /location/sub/int/ -size +1G)
if (( ${#files[@] > 0 )); then
printf '%sn' "${files[@]}" > /location/sub/int/large_file_audit.txt
fi
This won't gracefully handle filenames containing newlines - with newer versions of bash, you could make the find and mapfile null-delimited, but there's not much benefit if you're outputting them as a newline-delimited list anyhow.
answered Jan 18 at 23:51
steeldriversteeldriver
67.8k11110182
Your test if [ "find /location/sub/int/ -size +1G" ] doesn't work the way you intend because it tests the non-emptiness of the string "find /location/sub/int/ -size +1G" - which will always be true. In any case, the redirection > /location/sub/int/large_file_audit.txt will not magically pick up the standard output of the preceding command, so will always create an empty file.
Perhaps the closest to your intent in Bash would be to put the results of find into an array, and then test whether it has any elements:
mapfile -t files < <(find /location/sub/int/ -size +1G)
if (( ${#files[@] > 0 )); then
printf '%sn' "${files[@]}" > /location/sub/int/large_file_audit.txt
fi
This won't gracefully handle filenames containing newlines - with newer versions of bash, you could make the find and mapfile null-delimited, but there's not much benefit if you're outputting them as a newline-delimited list anyhow.
answered Jan 18 at 23:51
steeldriversteeldriver
67.8k11110182
answered Jan 18 at 23:51
steeldriversteeldriver
67.8k11110182
answered Jan 18 at 23:51
steeldriversteeldriver
67.8k11110182
answered Jan 18 at 23:51
steeldriversteeldriver
67.8k11110182
67.8k11110182
add a comment |
add a comment |
One liner workaround:
find -size +10G | grep ".*" > file.log || (rm file.log; echo "Can't find anything")
Or:
find -size +10G | grep ".*" > file.log || rm file.log
Note that find returns 1 (False) when files are not processed correctly for any reason, so I suggest using something like:
#!/bin/bash
RESULTS=$(find /path -size +1G)
if [ -n "$RESULTS" ];
then
echo "$RESULTS" > /path/file.log
fi
First run the find and put the results in a variable, then if the variable contained anything save that into a log file.
edited Jan 19 at 4:41
Sergiy Kolodyazhnyy
72.1k9148314
answered Jan 18 at 21:47
RavexinaRavexina
32.3k1483113
2
While the answer is all correct, you might want to touch on why originalif [ "find /location/sub/int/ -size +1G" ]does not work as intended ( and what it actually does instead of what user expects ).
– Sergiy Kolodyazhnyy
Jan 18 at 22:54
1
find returns 1 if I ask it to look somewhere that doesn't exist, but if the path exists but -size finds nothing, it does return 0. (and 1 is false).
– Xen2050
Jan 19 at 2:54
@Xen2050 To be exact ,findreturns 1 for any case where directory entries were not processed correctly as stated in EXIT STATUS part of the manual, which includes permission denied error on subdirectories or parent directory (try withchmod -rortouch testdir/subdir/foobar2;chmod -x testdir).
– Sergiy Kolodyazhnyy
Jan 19 at 4:40
add a comment |
One liner workaround:
find -size +10G | grep ".*" > file.log || (rm file.log; echo "Can't find anything")
Or:
find -size +10G | grep ".*" > file.log || rm file.log
Note that find returns 1 (False) when files are not processed correctly for any reason, so I suggest using something like:
#!/bin/bash
RESULTS=$(find /path -size +1G)
if [ -n "$RESULTS" ];
then
echo "$RESULTS" > /path/file.log
fi
First run the find and put the results in a variable, then if the variable contained anything save that into a log file.
edited Jan 19 at 4:41
Sergiy Kolodyazhnyy
72.1k9148314
answered Jan 18 at 21:47
RavexinaRavexina
32.3k1483113
2
While the answer is all correct, you might want to touch on why originalif [ "find /location/sub/int/ -size +1G" ]does not work as intended ( and what it actually does instead of what user expects ).
– Sergiy Kolodyazhnyy
Jan 18 at 22:54
1
find returns 1 if I ask it to look somewhere that doesn't exist, but if the path exists but -size finds nothing, it does return 0. (and 1 is false).
– Xen2050
Jan 19 at 2:54
@Xen2050 To be exact ,findreturns 1 for any case where directory entries were not processed correctly as stated in EXIT STATUS part of the manual, which includes permission denied error on subdirectories or parent directory (try withchmod -rortouch testdir/subdir/foobar2;chmod -x testdir).
– Sergiy Kolodyazhnyy
Jan 19 at 4:40
add a comment |
One liner workaround:
find -size +10G | grep ".*" > file.log || (rm file.log; echo "Can't find anything")
Or:
find -size +10G | grep ".*" > file.log || rm file.log
Note that find returns 1 (False) when files are not processed correctly for any reason, so I suggest using something like:
#!/bin/bash
RESULTS=$(find /path -size +1G)
if [ -n "$RESULTS" ];
then
echo "$RESULTS" > /path/file.log
fi
First run the find and put the results in a variable, then if the variable contained anything save that into a log file.
edited Jan 19 at 4:41
Sergiy Kolodyazhnyy
72.1k9148314
answered Jan 18 at 21:47
RavexinaRavexina
32.3k1483113
One liner workaround:
find -size +10G | grep ".*" > file.log || (rm file.log; echo "Can't find anything")
Or:
find -size +10G | grep ".*" > file.log || rm file.log
Note that find returns 1 (False) when files are not processed correctly for any reason, so I suggest using something like:
#!/bin/bash
RESULTS=$(find /path -size +1G)
if [ -n "$RESULTS" ];
then
echo "$RESULTS" > /path/file.log
fi
First run the find and put the results in a variable, then if the variable contained anything save that into a log file.
edited Jan 19 at 4:41
Sergiy Kolodyazhnyy
72.1k9148314
answered Jan 18 at 21:47
RavexinaRavexina
32.3k1483113
edited Jan 19 at 4:41
Sergiy Kolodyazhnyy
72.1k9148314
edited Jan 19 at 4:41
Sergiy Kolodyazhnyy
72.1k9148314
edited Jan 19 at 4:41
Sergiy Kolodyazhnyy
72.1k9148314
72.1k9148314
answered Jan 18 at 21:47
RavexinaRavexina
32.3k1483113
answered Jan 18 at 21:47
RavexinaRavexina
32.3k1483113
answered Jan 18 at 21:47
RavexinaRavexina
32.3k1483113
32.3k1483113
2
While the answer is all correct, you might want to touch on why originalif [ "find /location/sub/int/ -size +1G" ]does not work as intended ( and what it actually does instead of what user expects ).
– Sergiy Kolodyazhnyy
Jan 18 at 22:54
1
find returns 1 if I ask it to look somewhere that doesn't exist, but if the path exists but -size finds nothing, it does return 0. (and 1 is false).
– Xen2050
Jan 19 at 2:54
@Xen2050 To be exact ,findreturns 1 for any case where directory entries were not processed correctly as stated in EXIT STATUS part of the manual, which includes permission denied error on subdirectories or parent directory (try withchmod -rortouch testdir/subdir/foobar2;chmod -x testdir).
– Sergiy Kolodyazhnyy
Jan 19 at 4:40
add a comment |
2
While the answer is all correct, you might want to touch on why originalif [ "find /location/sub/int/ -size +1G" ]does not work as intended ( and what it actually does instead of what user expects ).
– Sergiy Kolodyazhnyy
Jan 18 at 22:54
1
find returns 1 if I ask it to look somewhere that doesn't exist, but if the path exists but -size finds nothing, it does return 0. (and 1 is false).
– Xen2050
Jan 19 at 2:54
@Xen2050 To be exact ,findreturns 1 for any case where directory entries were not processed correctly as stated in EXIT STATUS part of the manual, which includes permission denied error on subdirectories or parent directory (try withchmod -rortouch testdir/subdir/foobar2;chmod -x testdir).
– Sergiy Kolodyazhnyy
Jan 19 at 4:40
2
2
While the answer is all correct, you might want to touch on why original
if [ "find /location/sub/int/ -size +1G" ] does not work as intended ( and what it actually does instead of what user expects ).– Sergiy Kolodyazhnyy
Jan 18 at 22:54
While the answer is all correct, you might want to touch on why original
if [ "find /location/sub/int/ -size +1G" ] does not work as intended ( and what it actually does instead of what user expects ).– Sergiy Kolodyazhnyy
Jan 18 at 22:54
1
1
find returns 1 if I ask it to look somewhere that doesn't exist, but if the path exists but -size finds nothing, it does return 0. (and 1 is false).
– Xen2050
Jan 19 at 2:54
find returns 1 if I ask it to look somewhere that doesn't exist, but if the path exists but -size finds nothing, it does return 0. (and 1 is false).
– Xen2050
Jan 19 at 2:54
@Xen2050 To be exact ,
find returns 1 for any case where directory entries were not processed correctly as stated in EXIT STATUS part of the manual, which includes permission denied error on subdirectories or parent directory (try with chmod -r or touch testdir/subdir/foobar2;chmod -x testdir ).– Sergiy Kolodyazhnyy
Jan 19 at 4:40
@Xen2050 To be exact ,
find returns 1 for any case where directory entries were not processed correctly as stated in EXIT STATUS part of the manual, which includes permission denied error on subdirectories or parent directory (try with chmod -r or touch testdir/subdir/foobar2;chmod -x testdir ).– Sergiy Kolodyazhnyy
Jan 19 at 4:40
add a comment |
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