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How to replace a whole line with sed?
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This might work for you:
cat <<! | sed '/aaa=\(bbb\|ccc\|ddd\)/!s/\(aaa=\).*/\1xxx/'
> aaa=bbb
> aaa=ccc
> aaa=ddd
> aaa=[something else]
!
aaa=bbb
aaa=ccc
aaa=ddd
aaa=xxx
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Setting Vim whitespace preferences by filetype
... I needed to append expandtab at least for ruby, see answer by 'too much php' here
– Michael Durrant
May 21 '19 at 13:56
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Checking for the correct number of arguments
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cat script.sh
var1=$1
var2=$2
if [ "$#" -eq 2 ]
then
if [ -d $var1 ]
then
echo directory ${var1} exist
else
echo Directory ${var1} Does not exists
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Stop Excel from automatically converting certain text values to dates
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In my MySQL query (for CSV output through PHP), I used CONCAT('\t', column_name). Also did the trick. Thanks!
– Just Plain High
Jun 24 '16 at 14:39
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Key hash for Android-Facebook app
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You can use this code in any activity. It will log the hashkey in the logcat, which is the debug key. This is easy, and it's a relief than using SSL.
PackageInfo info;
try {
info = getPackageManager().getPackageInfo("com.you.name", PackageManager.GET_SIGNATURES);
for (Signature signature ...
how to stop browser back button using javascript
I am doing an online quiz app in php. I want to restrict the user from going back in an exam.
I have tried the following script but it stops my timer.
What should I do?
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What is the minimum valid JSON?
... to be one such example which only accepts objects and arrays as the root. PHP, on the other hand, specifically adds the exception that "it will also encode and decode scalar types and NULL".
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How does one output bold text in Bash?
...e sequences for example here: ascii-table.com/ansi-escape-sequences-vt-100.php
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Python, Unicode, and the Windows console
...; print type(line), len(line); \
sys.stdout.write(line); print line' | cat
None
<type 'unicode'> 2
Б
Б
There's some more information on that page, well worth a read.
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im...
How to delete a stash created with git stash create?
... is 2 weeks later).
Older stashes are saved in the refs/stash reflog (try cat .git/logs/refs/stash), and can be deleted with git stash drop stash@{n}, where n is the number shown by git stash list.
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