1
vote
1answer
22 views

realpath (GNU coreutils 8.22) does resolve “.” symlink regardless of “-s”

I'm trying to use realpath in a script which has to ensure that it is located under a certain (possibly symlinked) path. Also the script has to be runnable from any location, so it cannot presume that ...
0
votes
1answer
9 views

less -S server.log (unix)

For a better understanding I prefer to read the logs with no wrap lines. In less I can get this with the -S option. The problem is that I can not select and copy rows that go beyond the right side ...
0
votes
1answer
113 views

How to make exiftool not to change file's date and time

How to make exiftool not to change the date and time of the affected files? I mean not the date and time written in EXIF, I mean the date and time of the file itself.
1
vote
1answer
601 views

stat command in Mac OS X

I'm trying to get a formatted time output using a such command in Mac OS X 10.7.5 (in the Terminal app): stat -f "%m" -t "%Y" "myfilename.jpg" However, it still gives me a unixtime, not the ...
8
votes
4answers
664 views

Unix tools: what if a file is named minus something?

I'm always wondering: most GNU/Unix tools take options in the form "minus something", sometimes followed by an argument. What if you got a file named minus something? $ ls -f $ rm -f $ ls -f $ mv -f ...
0
votes
1answer
1k views

How to preserve white space in Bash arguments

I use the command: cm1 cm2 arg1 arg2 'argument 3' It first goes to cm1, which will then redirect arg1 arg2 'argument 3' to another file. /usr/bin/cm1: #! /bin/bash # some script here shift cm2 $@ ...
6
votes
3answers
1k views

Why are there short and long alternatives for command line options?

Most unixoid commands feature short and long alternatives for command line options, like ls -a and ls --all, or ls -A and ls --almost-all. Why do those two ways exist? One is shorter to type, the ...