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Gregg Leventhal's user avatar
Gregg Leventhal's user avatar
Gregg Leventhal's user avatar
Gregg Leventhal
  • Member for 10 years, 11 months
  • Last seen more than a week ago
87 votes
4 answers
309k views

Recursive grep vs find / -type f -exec grep {} \; Which is more efficient/faster?

69 votes
6 answers
110k views

Regex alternation/or operator (foo|bar) in GNU or BSD Sed

46 votes
7 answers
196k views

How to determine if NFS mount is mounted as v3 or v4?

40 votes
3 answers
30k views

Fork vs Clone on 2.6 Kernel Linux

33 votes
3 answers
8k views

What does 'exec {fd}</dev/watchdog' do in Bash

24 votes
3 answers
9k views

mv a file to /dev/null breaks dev/null

18 votes
2 answers
6k views

Negative lookbehind/ahead assertions in Linux less pager (or vim)

17 votes
3 answers
1k views

Open man page and search for string in a single command

15 votes
3 answers
10k views

EXT3: If block size is 4K, why does ls -l show file sizes below that?

15 votes
3 answers
2k views

What happens when a file that is 100% paged in to the page cache gets modified by another process

14 votes
2 answers
8k views

Difference between "bash executable" and "bash -c executable"

14 votes
4 answers
1k views

Is this a typo in Bash manual's redirection section?

13 votes
3 answers
21k views

Linux: difference between using autofs with NFS and just using fstab

12 votes
3 answers
41k views

Log all root activity with original username who su'd/sudoed to root

11 votes
5 answers
22k views

Split single string into character array using ONLY bash

11 votes
4 answers
16k views

Is setting a higher nice level for a process an effective way to reduce its impact on system load/CPU time?

11 votes
2 answers
16k views

Crontab change MAILTO for only one specific job in Root's crontab

10 votes
1 answer
4k views

Bash capture any error like -e but don't exit, do something else

10 votes
1 answer
866 views

Test -n gives unexpected result

9 votes
5 answers
17k views

Threads vs (Forked) Processes

9 votes
1 answer
27k views

Appending to same array in various loops, only last values remain Bash 4

9 votes
1 answer
1k views

What happens to requests to a service that is stopped with SIGSTOP

7 votes
4 answers
24k views

Edit home directory for an LDAP user in Linux

7 votes
1 answer
16k views

Why is swap used when a lot of memory is still free? [duplicate]

6 votes
2 answers
3k views

ext3 Filesystem shows full to most apps, but only 77% full to DF

6 votes
2 answers
8k views

Make script executable from vi/vim

5 votes
2 answers
3k views

why doesn't 0 0 * * 1 root hostname >> /tmp/hostname.txt work as a crontab?

5 votes
3 answers
741 views

Bash: handling "[[ statement ]] || echo problem found ; exit 1" logic

5 votes
1 answer
5k views

vim regex to search for lines containing string1 AND string2

5 votes
1 answer
8k views

I/O errors on Linux LVM