简介
A
ab
accept
ack
ag
alias
apachectl
apk
apropos
apt-get
aptitude
apt-key
apt-sortpkgs
ar
arch
arj
arp
arpd
arping
arptables
arpwatch
as
at
atop
atq
atrm
awk
axel
B
badblocks
base64
basename
batch
bc
bg
bind
blkid
blockdev
bmodinfo
break
builtin
bunzip2
bye
bzcat
bzcmp
bzdiff
bzgrep
bzip2
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C
cal
cancel
cat
cd
cdrecord
chage
chattr
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chfn
chgrp
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cksum
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cmp
col
colrm
column
comm
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consoletype
continue
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cp
cpio
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cu
cupsdisable
cupsenable
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D
date
dc
dd
declare
depmod
df
dhclient
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diff
diff3
diffstat
dig
dircolors
dirname
dirs
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E
e2fsck
e2label
echo
ed
edquota
egrep
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elinks
elm
emacs
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env
ethtool
ex
exec
exit
expand
export
exportfs
expr
F
false
fc
fdisk
fg
fgrep
file
find
findfs
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fmt
fold
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free
fsck
ftp
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G
gcc
gcov
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get_module
getenforce
getent
getsebool
git
gpasswd
gpm
grep
groupadd
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groupmems
groupmod
groups
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grub
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gunzip
gzexe
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H
halt
hcitool
hdparm
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help
hexdump
history
host
hostid
hostname
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hping3
htdigest
htop
htpasswd
hwclock
I
iconv
id
ifcfg
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iftop
ifup
indent
info
init
inotifywait
insmod
install
iostat
iotop
ip
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iscsiadm
ispell
J
jed
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joe
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journalctl
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K
kernelversion
kexec
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killall
L
last
lastb
lastlog
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ldconfig
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less
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lilo
ln
lnstat
local
locate
logger
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M
mail
mailq
mailstat
make
man
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md5sum
mesg
mii-tool
mkbootdisk
mkcert
mkdir
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modetest
modprobe
more
mount
mpstat
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mv
mysql
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N
named-checkzone
nano
nc
ncftp
neofetch
nethogs
netstat
newusers
nfsstat
ngrep
nice
nisdomainname
nl
nm
nmap
nmcli
nohup
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O
objdump
od
openssl
P
pacman
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passwd
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patch
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php
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poweroff
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pr
printf
protoize
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pv
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pwdx
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Q
quota
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R
rcconf
rcp
read
readelf
readonly
reboot
reject
rename
renice
reposync
repquota
resize
restore
restorecon
return
rev
rexec
rlogin
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route
rpm
rpm2cpio
rpmbuild
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S
sar
scp
screen
script
scriptreplay
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seq
service
sesearch
set
setfacl
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sh
sha256sum
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showmount
shuf
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source
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split
squid
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ss
ssh-add
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ssh-keygen
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ssh
sshd
sshpass
startx
stat
strace
strings
stty
su
sudo
sum
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systemctl
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T
tac
tail
tailf
talk
tar
tcpdump
tcpreplay
tee
telinit
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tempfile
test
tftp
time
timedatectl
times
tload
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top
touch
tput
tr
tracepath
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tree
true
tty
type
U
ulimit
umask
umount
unalias
uname
unarj
uncompress
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uniq
unlink
unprotoize
unrar
unset
unzip
updatedb
uptime
useradd
userdel
usermod
usernetctl
users
uucico
uupick
uuto
V
vdfuse
vgchange
vgconvert
vgcreate
vgdisplay
vgextend
vgreduce
vgremove
vgrename
vgscan
vi
vmstat
volname
W
w
wait
wall
watch
wc
wget
whatis
whereis
which
who
whoami
write
X
xargs
xauth
xclip
xhost
xinit
xlsatoms
xlsclients
xlsfonts
xrandr
xset
xz
Y
yes
ypdomainname
yum
Z
zcat
zfore
zip
zipinfo
zipsplit
znew
其他
7z
tempfile - Linux命令大全 - 笔下光年
网站首页
tempfile
shell中给临时文件命名 ## 补充说明 有时候在写Shell脚本的时候需要一些临时存储数据的才做,最适合存储临时文件数据的位置就是`/tmp`,因为该目录中所有的内容在系统重启后就会被清空。下面是两种方法为临时数据生成标准的文件名。 ### tempfile命令 `tempfile命令`只有在基于Debian的发行版中才默认自带,比如Ubuntu,其他发行版没有这个命令。 用tempfile命令为一个临时文件命名: ```shell temp_file_name=$(tempfile) ``` 用一个加带了随机数的文件名作为临时文件命名: ```shell temp_file_name="/tmp/file_$RANDOM" ``` $RANDOM是一个返回随机数的环境变量。 ### $$变量 如果没有tempfile命令的Linux发行版,也可以使用自己的临时文件名: ```shell temp_file_name="/tmp/file.$" ``` `$$`是系统预定义变量,显示当前所在进程的进程号,用`.$$`作为添加的后缀会被扩展成当前运行脚本的进程id。
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