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added grep -irl

master
zeus 2021-06-16 16:27:27 +02:00
parent 78c63888be
commit ce366e2662
2 changed files with 5 additions and 1 deletions
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2
bash/biggest_dir_on_same_fs.sh
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@ -1,4 +1,4 @@
#!/bin/bash #!/bin/bash
# find biggest directories in a given path without leaving the current filesystem # find biggest directories in a given path without leaving the current filesystem
dir="/var/opt/gitlab"; for i in $(ls $dir); do mountpoint -q $dir/$i || du -shx $dir/$i ; done | sort -rh | head dir="$1"; for i in $(ls $dir); do mountpoint -q $dir/$i || du -shx $dir/$i ; done | sort -rh | head

4
falsefriends.md
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@ -9,3 +9,7 @@ an empty string in `$PATH` is equivalent to `.`, so prepending `:` to your PATH,
killall -1 killall -1
-- --
in `killall` the parameter `-1` is - differnently to `kill` NOT interpreted as signal, but is a special variable for "applies to everything except PID1 and self". Therefore no signal is given, and the default one (15, SIGTERM) will be applied to each and every PID (but is then usually reduced again to the searchterm given). So `killall -1 java` does in pseudocode effectively: `where name is java; do [ ! PID == 1 ] && kill -s 15 $name; done` ...very dangerous in `killall` the parameter `-1` is - differnently to `kill` NOT interpreted as signal, but is a special variable for "applies to everything except PID1 and self". Therefore no signal is given, and the default one (15, SIGTERM) will be applied to each and every PID (but is then usually reduced again to the searchterm given). So `killall -1 java` does in pseudocode effectively: `where name is java; do [ ! PID == 1 ] && kill -s 15 $name; done` ...very dangerous
grep -irl
--
you'd normally expect, that `grep -irl` will find an expression to grep for at the desired location, but it does not, if symlinks are into play. Use `grep -iRl`instead.