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ilkkachu
  • Member for 7 years, 9 months
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259 votes
Accepted

How can we run a command stored in a variable?

174 votes
Accepted

What's the difference between eval and exec?

126 votes
Accepted

Is there a standard dummy executable file that does nothing in Linux?

110 votes
Accepted

Hash symbols (#) turned into pound symbols (£) after catting a binary

88 votes

What is the 6th character of the password hash on Linux, and why is it often a slash?

78 votes
Accepted

call function declared below

76 votes

Why is the "ls" command showing permissions of files in a FAT32 partition?

72 votes
Accepted

Are file edits in Linux directly saved into disk?

69 votes
Accepted

Are threads implemented as processes on Linux?

68 votes
Accepted

How can I copy a directory and rename it in the same command?

62 votes
Accepted

What is the difference between ping localhost and ping 127.0.0.1?

59 votes
Accepted

Why does awk -F work for most letters, but not for the letter "t"?

57 votes

Conditionally pass params to a script

52 votes

Is your SSH password revealed when you attempt to connect to the wrong server?

52 votes
Accepted

Would globally aliasing the fork bomb prevent its execution?

51 votes
Accepted

What's the right way to quote $(command $arg)?

50 votes
Accepted

How do file permissions work for the "root" user?

50 votes
Accepted

Avoid listing of files that end with ~ (backup files)

49 votes
Accepted

Exit code at the end of a bash script

47 votes
Accepted

Is the PID of a child process always greater than the PID of its parent on Linux?

47 votes
Accepted

When using cat to create file, I have to type ctrl+d twice to finish the input, is this expected?

45 votes

Executable file named 'test' is in $PATH but won't run

45 votes
Accepted

Why do the directories /home, /usr, /var, etc. all have the same inode number (2)?

44 votes

Which process is `/proc/self/` for?

40 votes
Accepted

Splitting a small file into 512 byte segments changes it, but splitting it in 1k segments doesn't

39 votes
Accepted

What exactly are "Voluntary context switches"?

37 votes
Accepted

How can I sort a list with major.minor.patch level and sometimes rc correctly?

36 votes

Nano - jump to end of file

36 votes

Is piping, shifting, or parameter expansion more efficient?

34 votes

When is swap file harmful?

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