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How to run SQL script in MySQL?
...l visible by other users. Example: for i in /proc/*/cmdline ; do echo $i; cat $i; done
– elcuco
Jul 25 '18 at 7:30
Th...
What is AppDomain? [duplicate]
... AppDomain).
One significant benefit of this architecture is that communication patterns between App-domains remain substantially unchanged whether the AppDomains are in the same process, different processes, or on a different machines all together: namely the process of serialization and deserial...
git add only modified changes and ignore untracked files
...git status | grep "modified:" | awk '{print "git add " $2}' > file.sh
cat ./file.sh
execute:
chmod a+x file.sh
./file.sh
Edit: (see comments)
This could be achieved in one step:
git status | grep "modified:" | awk '{print $2}' | xargs git add && git status
...
Rearrange columns using cut
...
What version? perl -ae print works as cat for me
– pwes
Jan 20 '17 at 12:33
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How to extract the first two characters of a string in shell scripting?
...rom a file
To leave first two chars, just remove columns starting from 3
cat file | colrm 3
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What does “Object reference not set to an instance of an object” mean? [duplicate]
...for myPet == null... AND for myPet.PetType == null
if ( myPet.PetType == "cat" ) <--- fall down go boom!
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How to select rows that have current day's timestamp?
... in the index anyway. So, it doesn't hurt to explicitly add it (and it may catch some optimizer blind spots). It's certainly not relevant in this case/query.
– ypercubeᵀᴹ
Nov 5 '13 at 12:52
...
Bash ignoring error for a particular command
...
The solution:
particular_script || true
Example:
$ cat /tmp/1.sh
particular_script()
{
false
}
set -e
echo one
particular_script || true
echo two
particular_script
echo three
$ bash /tmp/1.sh
one
two
three will be never printed.
Also, I want to add that when pipefai...
Getting the last argument passed to a shell script
...=$BASH_ARGV # official built-in (but takes more typing :)
That's it.
$ cat lastarg
#!/bin/bash
# echo the last arg given:
_last=${!#}
echo $_last
_last=$BASH_ARGV
echo $_last
for x; do
echo $x
done
Output is:
$ lastarg 1 2 3 4 "5 6 7"
5 6 7
5 6 7
1
2
3
4
5 6 7
...
Sorting arrays in NumPy by column
...
I suppose this works: a[a[:,1].argsort()]
This indicates the second column of a and sort it based on it accordingly.
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