shell去除单引号

Question

现在变数file1取得值为：
'10001-999.pdf'
'10002-997-20221029.pdf'
这样的。

如果想去除前后的单引号应该怎么写啊。
edit=$｛file1｝｜ sed
后面该怎么写呢。

Answer 1

批量处理可以按照如下，写个shell脚本

shell脚本剔除单引号

[root@centos tmp]# chmod 755 dyh.sh 
[root@centos tmp]# cat dyh.sh 
#!/bin/sh
for line in `cat filename.txt`
do
 echo $line | sed $'s/\'//g' >> result.txt
done

[root@centos tmp]# 

#测试文件内容：
[root@centos tmp]# cat filename.txt 
'10001-999.pdf'
'10002-997-20221029.pdf'
'10001-999.pdf'
'10002-997-20221029.pdf'
'10002-997-20221031.pdf'
'10002-997-20221030.pdf'
[root@centos tmp]# 

#执行调试过程
[root@centos tmp]# sh -x dyh.sh 
++ cat filename.txt
+ for line in '`cat filename.txt`'
+ echo ''\''10001-999.pdf'\'''
+ sed 's/'\''//g'
+ for line in '`cat filename.txt`'
+ echo ''\''10002-997-20221029.pdf'\'''
+ sed 's/'\''//g'
+ for line in '`cat filename.txt`'
+ echo ''\''10001-999.pdf'\'''
+ sed 's/'\''//g'
+ for line in '`cat filename.txt`'
+ echo ''\''10002-997-20221029.pdf'\'''
+ sed 's/'\''//g'
+ for line in '`cat filename.txt`'
+ echo ''\''10002-997-20221031.pdf'\'''
+ sed 's/'\''//g'
+ for line in '`cat filename.txt`'
+ echo ''\''10002-997-20221030.pdf'\'''
+ sed 's/'\''//g'

#执行结果
[root@centos tmp]# cat result.txt 
10001-999.pdf
10002-997-20221029.pdf
10001-999.pdf
10002-997-20221029.pdf
10001-999.pdf
10002-997-20221029.pdf
10002-997-20221031.pdf
10002-997-20221030.pdf
[root@centos tmp]#