打印shell脚本不打印任何内容

时间:2014-07-09 20:55:20

标签: bash shell permission-denied procmail

我试图通过我的覆盆子pi创建一个打印服务。我的想法是为打印作业设置一个pop3帐户,我可以在那里发送PDF文件并在家里打印。因此我设置了fetchmail& RARR; procmail& RARR; uudeview收集电子邮件(使用白名单),提取文档并将其保存到/home/pi/attachments/。到目前为止,一切正常。

要打印文件,我想设置一个shell脚本,我计划每分钟通过cronjob执行一次。那是我现在被困住的地方,因为我被拒绝了#34;消息,并且在手动执行命令时,脚本完全没有打印任何内容。

这就是我的脚本:

#!/bin/bash
fetchmail                 # gets the emails, extracts the PDFs to ~/attachments
wait $!                   # takes some time so I have to wait for it to finish
FILES=/home/pi/attachments/*
for f in $FILES; do       # go through all files in the directory
   if  $f == "*.pdf"      # print them if they're PDFs
   then
      lpr -P ColorLaserJet1525 $f
   fi
   sudo rm $f             # delete the files
done;
sudo rm /var/mail/pi      # delete emails

执行脚本后,我得到以下反馈:

1 message for print@MYDOMAIN.TLD at pop3.MYDOMAIN.TLD (32139 octets).
Loaded from /tmp/uudk7XsG: 'Test 2' (Test): Stage2.pdf part 1   Base64
Opened file /tmp/uudk7XsG
procmail: Lock failure on "/var/mail/pi.lock"
reading message print@MYDOMAIN.TLD@SERVER.HOSTER.TLD:1 of 1 (32139 octets) flushed
mail2print.sh: 6: mail2print.sh: /home/pi/attachments/Stage2.pdf: Permission denied

从pop3帐户中提取电子邮件,提取附件并在~/attachements/中短暂显示,然后删除。但是没有打印输出。

任何想法我做错了什么?

2 个答案:

答案 0 :(得分:2)

if  $f == "*.pdf"

应该是

if  [[ $f == *.pdf ]]

我也认为

FILES=/home/pi/attachments/*

应该引用:

FILES='/home/pi/attachments/*'

建议:

#!/bin/bash
fetchmail                      # gets the emails, extracts the PDFs to ~/attachments
wait "$!"                      # takes some time so I have to wait for it to finish
shopt -s nullglob              # don't present pattern if no files are matched
FILES=(/home/pi/attachments/*)
for f in "${FILES[@]}"; do                              # go through all files in the directory
    [[ $f == *.pdf ]] && lpr -P ColorLaserJet1525 "$f"  # print them if they're PDFs
done
sudo rm -- "${FILES[@]}" /var/mail/pi         # delete files and emails at once

答案 1 :(得分:-1)

使用下面的方法首先过滤pdf文件,然后在for循环中删除if语句。

FILES="ls /home/pi/attachments/*.pdf"