export is a Bash builtin, echo is an executable in your $PATH. So export is interpreted by Bash as is, without spawning a new process. You need to get Bash to interpret your command, which you can pass as a string with the -c option: ALSO: Each invocation of bash -c starts with a fresh … Read more
From the GNU C Library Manual: Function: char * fgets (char *s, int count, FILE *stream) The fgets function reads characters from the stream stream up to and including a newline character and stores them in the string s, adding a null character to mark the end of the string. You must supply count characters … Read more
It does not really hang. As you can see in the comment below (You are running “/bin/bash” as command) it seems to be expected behaviour when attaching. As far as I understand you attach to the running shell and just the stdin/stdout/stderr – depending on the options you pass along with the run command – … Read more
Your hosts file does not include a valid FQDN, nor is localhost an FQDN. An FQDN must include a hostname part, as well as a domain name part. For example, the following is a valid FQDN: Choose an FQDN and include it both in your /etc/hosts file on both the IPv4 and IPv6 addresses you … Read more
There may be several causes which lead to the service being stuck in “marked for deletion”. SysInternals’ Process Explorer is opened. Closing it should lead to automatic removal of the service. Task Manager is opened. Microsoft Management Console (MMC) is opened. To ensure all instances are closed, run taskkill /F /IM mmc.exe. Services console is … Read more
Chances are you’ve forgotten a semicolon in a header file someplace. Make sure each line ends in ;
You want awk. This would be a quick and dirty hack: awk -F “\”” ‘{print $2}’ /tmp/file.txt
There is no such command, since there is no list of “attempted mounts”. You can compare the current mount list (/etc/mtab) to the list of shares registered to be mounted though (/etc/fstab). Alternatively you could try to grep through the system log files to find failed mount attempts.
Using an ls –a and grep, how would you list the name of all of the files in /usr starting with the letter p or the letter r or the letter s using a single grep command? would this be right?
%RANDOM% gives you a random number between 0 and 32767. Using an expression like SET /A test=%RANDOM% * 100 / 32768 + 1, you can change the range to anything you like (here the range is [1…100] instead of [0…32767]).