大约有 1,832 项符合查询结果（耗时：0.0250秒） [XML]
How to get the current branch name in Git?
...3
submodule: remotes/origin/HEAD
general detached head: v1.0.6-5-g2393761
cat .git/HEAD:
local branch: ref: refs/heads/master
submodule: cat: .git/HEAD: Not a directory
all other use cases: SHA of the corresponding commit
git rev-parse --abbrev-ref HEAD
local branch: master
all the other use c...
How to test if string exists in file with Bash?
...
If I execute this command from bash script how to catch 0 or 1 into a variable ?
– Toren
Jan 20 '11 at 16:06
6
...
How to go to each directory and execute a command?
...t actually care in which directory you execute them. for f in foo bar; do cat "$f"/*.txt; done >output is functionally equivalent to cat foo/*.txt bar/*.txt >output. However, ls is one command that does produce slightly different output depending on how you pass it arguments; similarly, a gr...
How can I remove the first line of a text file using bash/sed script?
...edirection (>) happens before tail is invoked by the shell:
Shell truncates file $FILE
Shell creates a new process for tail
Shell redirects stdout of the tail process to $FILE
tail reads from the now empty $FILE
If you want to remove the first line inside the file, you should use:
tail -n +2...
How to compile and run C/C++ in a Unix console/Mac terminal?
...
All application execution in a Unix (Linux, Mac OS X, AIX, etc.) environment depends on the executable search path.
You can display this path in the terminal with this command:
echo $PATH
On Mac OS X (by default) this will di...
How do you easily horizontally center a using CSS? [duplicate]
...answered Nov 4 '15 at 7:54
wh1t3cat1kwh1t3cat1k
2,97255 gold badges2727 silver badges3535 bronze badges
...
How to remove the lines which appear on file B from another file A?
...s>
works on non-sorted files
maintains the order
is POSIX
Example:
cat <<EOF > A
b
1
a
0
01
b
1
EOF
cat <<EOF > B
0
1
EOF
grep -Fvxf B A
Output:
b
a
01
b
Explanation:
-F: use literal strings instead of the default BRE
-x: only consider matches that match the entire...
How to filter None's out of List[Option]?
...
The cats library also has flattenOption, which turns any F[Option[A]] into an F[A] (where F[_] is a FunctorFilter)
import cats.implicits._
List(Some(1), Some(2), None).flattenOption == List(1, 2)
...
Get list of data-* attributes using javascript / jQuery
... be able to get the data with:
var attributes = element.dataset
or
var cat = element.dataset.cat
Oh, but I also read:
Unfortunately, the new dataset property has not yet been implemented in any browser, so in the meantime it’s best to use getAttribute and setAttribute as demonstrated ear...
How can I randomize the lines in a file using standard tools on Red Hat Linux?
...rocess (much, much longer than with shuf), no matter how much memory I allocated.
– mklement0
May 8 '15 at 23:00
1
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