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ARM Technologies   ...  Linux General 

General Linux help

Some regular tips at hand

Installing composer

To install composer on a Linux system, curl library must be present. The following command will install the composer at /usr/local/bin. You will need the super user permission.


curl -sS | sudo php -- --install-dir=/usr/local/bin --filename=composer

Search files and texts

To find by file name:


find ~/ -type f -name "somefile"


Search files containing a text


grep -i -H -r "sometext" .


Search and delete .svn recursively


find -name .svn -exec rm -irfv {} \;

Keeping SSH connectivity alive for longer duration

ssh -o ServerAliveInterval=60 -o ServerAliveCountMax=9999 user@serveraddress

Linux export at your rescue for special characters

Sometime we have special characters like "!" in password that creates trouble to execute command in CLI. You can overcome it with export


export PASS='some!p@ss'
curl -u ${PASS} http://yourremote.url

Transfer files with scp command

scp -P[port no] [local file path] user@remoteserver:[remote path]