我试图从bash调用expect脚本但是我收到以下错误：
+ cd /usr/local/sbin/myscripts
+ exec transfer_single_cert.expct jw.jwebster
./resend_keys.sh: line 131: exec: transfer_single_cert.expct: not found
这是bash：
#!/bin/bash
...other code
cd /usr/local/sbin/myscripts
exec transfer_single_cert.expct $usern
为什么会出现上述错误？ 文件名是正确的。
我也试过
exec /usr/bin/bash /usr/local/sbin/myscripts/transfer_single_cert.expct $usern
./transfer_single_cert.expct $usern
答案 0 :(得分：0)
我想答案是：默认情况下，当前目录不在搜索PATH中，因为transfer_single_cert.expct无法找到transfer_single_cert.expct。
所以调用./transfer_single_cert.expct作为chmod +x transfer_single_cert.expct（并确保它具有可执行位（expect），并且期望脚本的第一行是shebang，位置正确expect transfer_single_cert.expct。
或者只使用# make some data with categories a and b
library(dplyr)
df = expand.grid(
a = LETTERS[1:3],
index = 1:10
)
# add a variable that changes within each group
set.seed(9999)
df$x = runif(nrow(df))
# get the variance of a subset of x
varSubset = function(x, index, subsetSize) {
subset = (index-subsetSize+1):index
ifelse(subset[1]<1, -1, var(x[subset]))
}
df %>%
# group the data
group_by(a) %>%
# get the variance of the 3 most recent values
mutate(var3 = varSubset(x, index, 3))
。