ls prints differently depending on whether the output is to a terminal or to something else.
$ ls . file1 file2 $ ls . | head file1 file2
Is there some way to make
ls print out on one line as if it's to a terminal when it's not. There's a
-C argument that sorta does that, but it will split it into several lines.
$ ls file1 file10 file11 file12 file13 file14 file15 file16 file17 file18 file19 file2 file3 file4 file5 file6 file7 file8 file9 $ ls -C . | head file1 file11 file13 file15 file17 file19 file3 file5 file7 file9 file10 file12 file14 file16 file18 file2 file4 file6 file8
The reason I want to do this is that I want to monitor the files in a directory that were changing quickly. I had constructed this simple command line:
while [[ true ]] ; do ls ; done | uniq
The uniq prevents it from spamming my terminal and only showing changes. However it was printing it all on differnet lines, which was making the uniq useless, and increasing the amount of noise. In theory one could use
watch for this, but I wanted to see a file as soon as it appeared/disappeared.
This is the final solution:
while [[ true ]] ; do ls | tr '\n' ' ' ; done | uniq