使用shell腳本執行mailx

Question

我試圖運行下面的腳本。

val = `wc -l /home/validate.bad | awk '{print $1}' | tail -n1` 
valCount = `wc -l /home/validation.txt | awk '{print $1}'` 
if [ "$val" -gt 1 ] && ["$valCount" -gt 1] 
then 
    mailx -s "Validation failed" -r xyz@abc.com xyz@abc.com<<-EOF 
Hi , 
Validation has failed. Please check. 
EOF 
elif [ "$valCount" -gt 1 ] 
then 
    mailx -s "Validation pass" -r xyz@abc.com xyz@abc.com<<-EOF 
Hi Team, 
Validation success. 
EOF 
fi 

但我得到這個錯誤。

Error: 
val: comand not found 
valCount: command not found 
line 3[: : integer expression expected 

Answer 1

你不能有空格周圍=：

val = `wc -l /home/validate.bad | awk '{print $1}' | t` # wrong 

，應該已經

val=`wc -l /home/validate.bad | awk '{print $1}' | t` 

或preferrably

val=$(wc -l </home/validate.bad) 
#`..` is legacy , $() supports nesting, one good reason to go for it 
# You use awk and tail uselessly 

而且

["$valCount" -gt 1] 

應該已經

[ "$valCount" -gt 1 ] # mind the spaces for the test constructie 
# [spaceSTUFFspace] is the correct form 

旁註

您可以使用[ shellcheck ]來檢查你的腳本。