Bash script checkfile.sh
[huupv@huupv scripts]$ cat checkfile.sh
The content as below:
#!/bin/bash
# author: HuuPV
# for example basic for check file exists!
FILE="/home/huupv/scripts/menu_list"
if [ -f $FILE ]; then
echo -e "$FILE \t File exists!"
else
echo -e "$FILE \t File not exists!"
fi
File operators:
-a FILE True if file exists.
-b FILE True if file is block special.
-c FILE True if file is character special.
-d FILE True if file is a directory.
-e FILE True if file exists.
-f FILE True if file exists and is a regular file.
-g FILE True if file is set-group-id.
-h FILE True if file is a symbolic link.
-L FILE True if file is a symbolic link.
-k FILE True if file has its `sticky' bit set.
-p FILE True if file is a named pipe.
-r FILE True if file is readable by you.
-s FILE True if file exists and is not empty.
-S FILE True if file is a socket.
-t FD True if FD is opened on a terminal.
-u FILE True if the file is set-user-id.
-w FILE True if the file is writable by you.
-x FILE True if the file is executable by you.
-O FILE True if the file is effectively owned by you.
-G FILE True if the file is effectively owned by your group.
-N FILE True if the file has been modified since it was last read.
FILE1 -nt FILE2 True if file1 is newer than file2 (according to modification date).
FILE1 -ot FILE2 True if file1 is older than file2.
FILE1 -ef FILE2 True if file1 is a hard link to file2.
String operators:
-z STRING: True if string is empty.
-n STRING: STRING True if string is not empty.
STRING1 = STRING2: True if the strings are equal.
STRING1 != STRING2: True if the strings are not equal.
STRING1 < STRING2: True if STRING1 sorts before STRING2 lexicographically.
STRING1 > STRING2: True if STRING1 sorts after STRING2 lexicographically.
Thanks for reading conditional expression bash script My blog Effortless Zimbra Mail Management: Unleashing the Power of Linux Commands, How-To, and Bash Scripts I hope this is useful.
