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Generator Expressions vs. List Comprehension
...as you consume the bits.
Imagine you have a 2TB log file called "hugefile.txt", and you want the content and length for all the lines that start with the word "ENTRY".
So you try starting out by writing a list comprehension:
logfile = open("hugefile.txt","r")
entry_lines = [(line,len(line)) for l...
Delete files older than 10 days using shell script in Unix [duplicate]
...a/backuplog/"
timestamp=$(date +%Y%m%d_%H%M%S)
filename=log_$timestamp.txt
log=$path$filename
days=7
START_TIME=$(date +%s)
find $path -maxdepth 1 -name "*.txt" -type f -mtime +$days -print -delete >> $log
echo "Backup:: Script Start -- $(date +%Y%m%d_%H%M)" >> $log
... co...
How do I pipe a subprocess call to a text file?
...en and pass the object or file descriptor integer to call:
f = open("blah.txt", "w")
subprocess.call(["/home/myuser/run.sh", "/tmp/ad_xml", "/tmp/video_xml"], stdout=f)
I'm guessing any valid file-like object would work, like a socket (gasp :)), but I've never tried.
As marcog mentions in the c...
How to skip over an element in .map()?
...nother reducing function
const inputSources = [{src:'one.html'}, {src:'two.txt'}, {src:'three.json'}]
inputSources.reduce(mappingSrc(concat), [])
// -> ['one.html', 'two.txt', 'three.json']
// remember this is really essentially just
// inputSources.reduce((acc, x) => acc.concat([x.src]), [])...
Going to a specific line number using Less in Unix
... other answers work for the BusyBox version of less: less 9581553g -N file.txt less: can't open '9581553g': No such file or directory and also: less +G -N file.txt less: can't open '+G': No such file or directory
– Wimateeka
Jul 23 at 17:54
...
Excel Date to String conversion
...oText Selection
End Sub
Sub toText(target As range)
Dim cell As range
Dim txt As String
For Each cell In target
txt = cell.text
cell.NumberFormat = "@"
cell.Value2 = txt
Next cell
End Sub
sh...
Copying the GNU screen scrollback buffer to a file (extended hardcopy)
...
Press Ctrl+A :bufferfile /tmp/somefile.txt ENTER, and then Ctrl+A >
This will write the current contents of the buffer to the named file.
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Read file line by line using ifstream in C++
The contents of file.txt are:
8 Answers
8
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Counting Line Numbers in Eclipse [closed]
...s=*" %%G IN ('dir "%CD%\src\*.java" /b /s') DO (type "%%G") >> lines.txt
SET count=1
FOR /f "tokens=*" %%G IN ('type lines.txt') DO (set /a lines+=1)
echo Your Project has currently totaled %lines% lines of code.
del lines.txt
PAUSE
...
How to modify a text file?
... file, make the modifications and write it out to a new file called myfile.txt.tmp or something like that. This is better than reading the whole file into memory because the file may be too large for that. Once the temporary file is completed, I rename it the same as the original file.
This is a go...