运行命令 man bash | col -b 的时候 man 会出错。单独 man bash 的时候没问题的。
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man: 没有那个文件或目录
Failed to open the message catalog man on the path NLSPATH=<none>
Error executing formatting or display command.
System command (cd /usr/share/man && (echo ".pl 11i"; /usr/bin/gunzip -c '/usr/share/man/man1/bash.1.gz') | /usr/bin/gtbl | /usr/bin/nroff -c -mandoc | /usr/bin/less -isr) exited with status 36096.
No manual entry for bash
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