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Count occurrences of a char in a string using Bash
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I would use the following awk command:
string="text,text,text,text"
char=","
awk -F"${char}" '{print NF-1}' <<< "${string}"
I'm splitting the string by $char and print the number of resulting fields minus 1.
If your shell does not support the <...
How to install Homebrew on OS X?
...tps://raw.githubusercontent.com/Homebrew/install/master/install)"
The command brew install wget is an example of how to use Homebrew to install another application (in this case, wget) after brew is already installed.
Edit:
Above command to install the Brew is migrated to:
/bin/bash -c "$(curl -fsS...
Automatically remove Subversion unversioned files
...The other solution from bellow svn cleanup --remove-unversioned is better. And it is for Subversion 1.9.0 (this version is from 2015). It is stable and standar.
– tres.14159
Nov 21 '18 at 8:19
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Identify user in a Bash script called by sudo
...tiple checks - if $USER == 'root' then get $SUDO_USER.
Instead of the command whoami use who am i. This runs the who command filtered for the current session. It gives you more info than you need. So, do this to get just the user:
who am i | awk '{print $1}'
Alternatively (and simpler) you c...
How do I concatenate two arrays in C#?
...faster than list when accessing data, because list just wraps array inside and has overhead for calling indexer.
– C0DEF52
May 26 '18 at 22:15
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UnicodeDecodeError: 'utf8' codec can't decode byte 0x9c
...characters. Better to determine or detect the encoding of the input string and decode it to unicode first, then encode as UTF-8, for example: str.decode('cp1252').encode('utf-8')
– Ben Hoyt
Sep 17 '12 at 23:15
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Text size and different android screen sizes
...ll find how there suggesting for using dimens.xml for different devices of android for Example see Below structure :
res/values/dimens.xml
res/values-small/dimens.xml
res/values-normal/dimens.xml
res/values-large/dimens.xml
res/values-xlarge/dimens.xml
for Example you have used below dimens.x...
How to set an environment variable only for the duration of the script?
... by temporarily setting HOME to a folder in the present working directory, and then launching the app.
3 Answers
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Does “untyped” also mean “dynamically typed” in the academic CS world?
...." This contradicted what I thought to be true so I started digging to try and learn more.
9 Answers
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Should a function have only one return statement?
... Agreed. Although having multiple exit point can get out of hand, I definately think it's better than putting your entire function in an IF block. Use return as often as it makes sense to keep your code readable.
– Joshua Carmody
Sep 19 '08 at 20:...