View all file operator expressions for any file, test, stat

testt(){ o=abcdefghLkprsStuwxOGN;echo $@;for((i=0;i<${#o};i++));do c=${o:$i:1};test -$c $1 && help test | sed "/^ *-$c/!d;1q;s/^[^T]*/-$c /;s/ if/ -/";done; }

Applies each file operator using the built-in test. testt /home/askapache/.sq /home/askapache/.sq -a True - file exists. -d True - file is a directory. -e True - file exists. -r True - file is readable by you. -s True - file exists and is not empty. -w True - the file is writable by you. -x True - the file is executable by you. -O True - the file is effectively owned by you. -G True - the file is effectively owned by your group. -N True - the file has been modified since it was last read. Full Function: testt () { local dp; until [ -z "${1:-}" ]; do dp="$1"; [[ ! -a "$1" ]] && dp="$PWD/$dp"; command ls -w $((${COLUMNS:-80}-20)) -lA --color=tty -d "$dp"; [[ -d "$dp" ]] && find "$dp" -mount -depth -wholename "$dp" -printf '%.5m %10M %#15s %#9u %-9g %#5U %-5G %Am/%Ad/%AY %Cm/%Cd/%CY %Tm/%Td/%TY [%Y] %p\n' -a -quit 2> /dev/null; for f in a b c d e f g h L k p r s S t u w x O G N; do test -$f "$dp" && help test | sed "/-$f F/!d" | sed -e 's#^[\t ]*-$[a-zA-Z]\{1\}$ F[A-Z]*[\t ]* True if#-\1 "'$dp'" #g'; done; shift; done }

Sample Output

$ testt /dev/pts/3 
/dev/pts/3
-a True - file exists.
-c True - file is character special.
-e True - file exists.
-r True - file is readable by you.
-w True - the file is writable by you.
-N True - the file has been modified since it was last read.


$ testt /home/askapache/.sq
/home/askapache/.sq
-a True - file exists.
-d True - file is a directory.
-e True - file exists.
-r True - file is readable by you.
-s True - file exists and is not empty.
-w True - the file is writable by you.
-x True - the file is executable by you.
-O True - the file is effectively owned by you.
-G True - the file is effectively owned by your group.
-N True - the file has been modified since it was last read.

By: AskApache

2012-02-21 16:54:53

echo sed test bash find file for test stat builtin askapache printf for loop shift until

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What Others Think

Very nice. I especially like the way you extracted the options from a string.

flatcap · 673 weeks and 2 days ago

Thanks flatcap.. still it seems no matter what command I add I can't break 1 vote. This function is commandlinefu!

AskApache · 672 weeks and 2 days ago

seofox · 154 weeks and 1 day ago

seofox · 153 weeks and 2 days ago

rahimhh21 · 124 weeks and 6 days ago

Perfecthomepugs · 115 weeks and 4 days ago

???? ??????? ??????

apadanaa44 · 96 weeks and 2 days ago

pugpuppies95 · 77 weeks and 5 days ago

Great job! I like how you pull options from text. Can you simplify it further to work for any situation and stress the importance of the results?

Micheal66 · 38 weeks and 2 days ago

yeneba6574 · 31 weeks ago

Great job! I like how you pull options from text. Can you simplify it further to work for any situation and stress the importance of the 10th class result.Highlighting its significance can help students understand their academic progress better and ensure they stay on track with their educational goals.

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rinakonohatoto78 · 6 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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