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
New contributor
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
New contributor
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
New contributor
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
New contributor
New contributor
edited 6 hours ago
Ravexina
32k1482112
32k1482112
New contributor
asked 7 hours ago
ShadwarShadwar
111
111
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New contributor
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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.
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.
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
5 hours ago
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
1 hour ago
@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 withchmod -r
ortouch testdir/subdir/foobar2;chmod -x testdir
).
– Sergiy Kolodyazhnyy
3 mins ago
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.
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.
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.
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 4 hours ago
steeldriversteeldriver
66.5k11107179
66.5k11107179
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 "$RESULTS" > /path/file.log
fi
First run the find
and put the results in a variable, then if the variable contained anything save that into a log file.
2
While the answer is all correct, you might want to touch on why originalif [ "find /location/sub/int/ -size +1G" ]
does not work as intended ( and what it actually does instead of what user expects ).
– Sergiy Kolodyazhnyy
5 hours ago
1
find returns 1 if I ask it to look somewhere that doesn't exist, but if the path exists but -size finds nothing, it does return 0. (and 1 is false).
– Xen2050
1 hour ago
@Xen2050 To be exact ,find
returns 1 for any case where directory entries were not processed correctly as stated in EXIT STATUS part of the manual, which includes permission denied error on subdirectories or parent directory (try withchmod -r
ortouch testdir/subdir/foobar2;chmod -x testdir
).
– Sergiy Kolodyazhnyy
3 mins ago
add a comment |
One liner workaround:
find -size +10G | grep ".*" > file.log || (rm file.log; echo "Can't find anything")
Or:
find -size +10G | grep ".*" > file.log || rm file.log
Note that find
returns 1 (False) when files are not processed correctly for any reason, so I suggest using something like:
#!/bin/bash
RESULTS=$(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.
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
5 hours ago
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
1 hour ago
@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 withchmod -r
ortouch testdir/subdir/foobar2;chmod -x testdir
).
– Sergiy Kolodyazhnyy
3 mins ago
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 "$RESULTS" > /path/file.log
fi
First run the find
and put the results in a variable, then if the variable contained anything save that into a log file.
One liner workaround:
find -size +10G | grep ".*" > file.log || (rm file.log; echo "Can't find anything")
Or:
find -size +10G | grep ".*" > file.log || rm file.log
Note that find
returns 1 (False) when files are not processed correctly for any reason, so I suggest using something like:
#!/bin/bash
RESULTS=$(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 2 mins ago
Sergiy Kolodyazhnyy
71k9147312
71k9147312
answered 6 hours ago
RavexinaRavexina
32k1482112
32k1482112
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
5 hours ago
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
1 hour ago
@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 withchmod -r
ortouch testdir/subdir/foobar2;chmod -x testdir
).
– Sergiy Kolodyazhnyy
3 mins ago
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
5 hours ago
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
1 hour ago
@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 withchmod -r
ortouch testdir/subdir/foobar2;chmod -x testdir
).
– Sergiy Kolodyazhnyy
3 mins ago
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
5 hours ago
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
5 hours ago
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
1 hour ago
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
1 hour ago
@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
3 mins ago
@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
3 mins ago
add a comment |
Shadwar is a new contributor. Be nice, and check out our Code of Conduct.
Shadwar is a new contributor. Be nice, and check out our Code of Conduct.
Shadwar is a new contributor. Be nice, and check out our Code of Conduct.
Shadwar is a new contributor. Be nice, and check out our Code of Conduct.
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