Is it OK to overwrite a file created by mktemp?
Clash Royale CLAN TAG#URR8PPP
up vote
1
down vote
favorite
I'd like to copy a file to a temporary location.
I'd like to make sure I'm not overwriting anything important, and that I know the location of the file while the script is running.
#!/bin/bash
myfile="$(mktemp)"
cp "source" "$myfile"
# work with $myfile
rm "$myfile"
Does this seem OK? Is there anything I'm missing? (Permissions, etc.?)
I have a bad feeling about overwriting that file.
mktemp
asked Aug 23 at 21:01
user
1021111
add a comment |Â
up vote
1
down vote
favorite
I'd like to copy a file to a temporary location.
I'd like to make sure I'm not overwriting anything important, and that I know the location of the file while the script is running.
#!/bin/bash
myfile="$(mktemp)"
cp "source" "$myfile"
# work with $myfile
rm "$myfile"
Does this seem OK? Is there anything I'm missing? (Permissions, etc.?)
I have a bad feeling about overwriting that file.
mktemp
asked Aug 23 at 21:01
user
1021111
add a comment |Â
up vote
1
down vote
favorite
up vote
1
down vote
favorite
I'd like to copy a file to a temporary location.
I'd like to make sure I'm not overwriting anything important, and that I know the location of the file while the script is running.
#!/bin/bash
myfile="$(mktemp)"
cp "source" "$myfile"
# work with $myfile
rm "$myfile"
Does this seem OK? Is there anything I'm missing? (Permissions, etc.?)
I have a bad feeling about overwriting that file.
mktemp
asked Aug 23 at 21:01
user
1021111
I'd like to copy a file to a temporary location.
I'd like to make sure I'm not overwriting anything important, and that I know the location of the file while the script is running.
#!/bin/bash
myfile="$(mktemp)"
cp "source" "$myfile"
# work with $myfile
rm "$myfile"
Does this seem OK? Is there anything I'm missing? (Permissions, etc.?)
I have a bad feeling about overwriting that file.
mktemp
mktemp
asked Aug 23 at 21:01
user
1021111
asked Aug 23 at 21:01
user
1021111
asked Aug 23 at 21:01
user
1021111
asked Aug 23 at 21:01
user
1021111
asked Aug 23 at 21:01
user
1021111
1021111
add a comment |Â
add a comment |Â
1 Answer
1
active
oldest
votes
up vote
4
down vote
accepted
From the man page
Create a temporary file or directory, safely, and print its name.
You could add a check for whether mktemp was successful.
myfile="$(mktemp)"
if test $? != 0; then
exit 1
fi
If mktemp succeeds, it has created a file that was not present before. You can safely overwrite that file, that is the purpose for using mktemp. The permissions are set to u+rw, as mentioned in the manual.
answered Aug 23 at 21:09
RalfFriedl
3,7451624
add a comment |Â
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
4
down vote
accepted
From the man page
Create a temporary file or directory, safely, and print its name.
You could add a check for whether mktemp was successful.
myfile="$(mktemp)"
if test $? != 0; then
exit 1
fi
If mktemp succeeds, it has created a file that was not present before. You can safely overwrite that file, that is the purpose for using mktemp. The permissions are set to u+rw, as mentioned in the manual.
answered Aug 23 at 21:09
RalfFriedl
3,7451624
add a comment |Â
up vote
4
down vote
accepted
From the man page
Create a temporary file or directory, safely, and print its name.
You could add a check for whether mktemp was successful.
myfile="$(mktemp)"
if test $? != 0; then
exit 1
fi
If mktemp succeeds, it has created a file that was not present before. You can safely overwrite that file, that is the purpose for using mktemp. The permissions are set to u+rw, as mentioned in the manual.
answered Aug 23 at 21:09
RalfFriedl
3,7451624
add a comment |Â
up vote
4
down vote
accepted
up vote
4
down vote
accepted
From the man page
Create a temporary file or directory, safely, and print its name.
You could add a check for whether mktemp was successful.
myfile="$(mktemp)"
if test $? != 0; then
exit 1
fi
If mktemp succeeds, it has created a file that was not present before. You can safely overwrite that file, that is the purpose for using mktemp. The permissions are set to u+rw, as mentioned in the manual.
answered Aug 23 at 21:09
RalfFriedl
3,7451624
From the man page
Create a temporary file or directory, safely, and print its name.
You could add a check for whether mktemp was successful.
myfile="$(mktemp)"
if test $? != 0; then
exit 1
fi
If mktemp succeeds, it has created a file that was not present before. You can safely overwrite that file, that is the purpose for using mktemp. The permissions are set to u+rw, as mentioned in the manual.
answered Aug 23 at 21:09
RalfFriedl
3,7451624
answered Aug 23 at 21:09
RalfFriedl
3,7451624
answered Aug 23 at 21:09
RalfFriedl
3,7451624
answered Aug 23 at 21:09
RalfFriedl
3,7451624
3,7451624
add a comment |Â
add a comment |Â
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