Sometimes commands give you too much feedback. Perhaps 1/100th might be enough. If so, every() is for you. my_verbose_command | every 100 will print every 100th line of output. Specifically, it will print lines 100, 200, 300, etc If you use a negative argument it will print the *first* of a block, my_verbose_command | every -100 It will print lines 1, 101, 201, 301, etc The function wraps up this useful sed snippet: ... | sed -n '0~100p' don't print anything by default sed -n starting at line 0, then every hundred lines ( ~100 ) print. '0~100p' There's also some bash magic to test if the number is negative: we want character 0, length 1, of variable N. ${N:0:1} If it *is* negative, strip off the first character ${N:1} is character 1 onwards (second actual character). Show Sample Output

I used this fragment with Imagemagick convert so that I can place long text strings in pictures. The "\n" gets converted to a true newline in the image. So this fragment uses fold command to wrap the line and then sed to convert newlines (and any trailing spaces on the line) to the text "\n" Show Sample Output

retrieve file names back from touch commands for them Show Sample Output

Replaces a string matching a pattern in one or several files found recursively in a particular folder.

-e is the script function, it performs search and replace like vi, and -i is the edit the file in place.

Slug the part of an URL which identifies a page using human-readable keywords. Slugs are used to construct friendly URLs (often for permalinks) that are easy to type, descriptive, and easy to remember. Show Sample Output

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Tails a log and replaces it line-by-line according to whatever you want to replace. Useful if the file writing to the log can't be modified, so you need to modify its output instead. Show Sample Output

Although the need to type a password to make certain changes to the system may make perfect sense in a business or educational environment, it makes absolutely zero sense to the home user. So, if you’re at home and would rather get work done than be annoyed by what is essentially Linux’s UAC, then this command is for you.

This is a working version, though probably clumsy, of the script submitted by felix001. This works on ubuntu and CygWin. This would be great as a bash function, defined in .bashrc. Additionally it would work as a script put in the path. Show Sample Output

Save the script as: sort_file Usage: sort_file < sort_me.csv > out_file.csv This script was originally posted by Admiral Beotch in LinuxQuestions.org on the Linux-Software forum. I modified this script to make it more portable. Show Sample Output

I'm pretty sure everyone has curl and sed, but not everyone has lynx. Show Sample Output

Strangely enough, there is no option --lines=[negative] with tail, like the head's one, so we have to use sed, which is very short and clear, you see. Strangely more enough, skipping lines at the bottom with sed is not short nor clear. From Sed one liner : # delete the last 10 lines of a file $ sed -e :a -e '$d;N;2,10ba' -e 'P;D' # method 1 $ sed -n -e :a -e '1,10!{P;N;D;};N;ba' # method 2 Show Sample Output

"&&" runs sed if and only if the backup completed and /bin/cp exited cleanly. Works for multiple files; just specify multiple filenames (or glob). Use -v switch for cp to play it safe.

This will drop you into vim to edit all files that contain your grep string.

saves one command. Needs GNU grep though :-(

Alternative command to retrieve the CPU model name and strip off the "model name : " labels. Show Sample Output