实用的Shell(一)
2020-12-31 本文已影响0人
诺之林
查看Home下文件夹大小?
man du
du - estimate file space usage
-s, --summarize
display only a total for each argument
-h, --human-readable
print sizes in human readable format (e.g., 1K 234M 2G)
man sort
sort - sort lines of text files
-h, --human-numeric-sort
compare human readable numbers (e.g., 2K 1G)
-r, --reverse
reverse the result of comparisons
man head
head - output the first part of files
-n, --lines=[-]NUM
print the first NUM lines instead of the first 10; with the leading '-', print all but the last NUM lines of each file
如何杀死php-fpm进程?
man ps
ps - report a snapshot of the current processes
To see every process on the system using standard syntax
ps -ef
To see every process on the system using BSD syntax
ps ax
SIMPLE PROCESS SELECTION
a Lift the BSD-style "only yourself" restriction
-e Select all processes
x Lift the BSD-style "must have a tty" restriction
OUTPUT FORMAT CONTROL
-f Do full-format listing
man grep
grep, egrep, fgrep, rgrep - print lines matching a pattern
-v, --invert-match
Invert the sense of matching, to select non-matching lines
man awk
gawk - pattern scanning and processing language
n = 5
print $n
prints the fifth field in the input record.
man xargs
xargs - build and execute command lines from standard input
echo hello | echo
echo hello | xargs echo
man kill
kill - send a signal to a process
